19 results on '"Sulieman, Abdelmoneim"'
Search Results
2. Sensing mammographic density using single-sided portable Nuclear Magnetic Resonance.
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Alqurashi, Maher, Momot, Konstantin I., Aamry, Ali, Almohammed, H.I., Aamri, Hussin, Johary, Yehia H., Abolaban, Fouad A., and Sulieman, Abdelmoneim
- Abstract
This research paper presents a quantitative approach to sensing mammographic density (MD) using single-sided portable Nuclear Magnetic Resonance (NMR). It focuses on three main techniques: spin–lattice relaxation (recovery) time (T 1), spin–spin relaxation (decay) time (T 2), and Diffusion (D) techniques by testing whether or not the aforementioned techniques are in agreement with the gold standard and with each other when used for scanning breast tissue specimens with a variety of mammographic densities (MDs). The high mammographic density (HMD), intermediate MD, and low mammographic density (LMD) regions of each slice were identified according to the mammogram images. Subsequently, the grayscale values for these regions were quantified. One region was measured from the first sample while the remaining ones were measured from the second sample. The same areas were then exposed to portable NMR, and the sequences used as following: the stimulated echo sequence for diffusion (D), the Carr-Purcell-Meiboom-Gill (CPMG) sequence for T 2 , and saturation recovery sequence for T 1. The correlations between the grayscale values and NMR techniques were strongly correlated. The Pearson correlation coefficient, R, of T 1 (%) versus grayscale value, D (%) versus grayscale value, and T 2 (%) versus grayscale value, was 0.91, 0.91, and 0.93, respectively. Furthermore, the relative water content of the breast slices based on T 1 , T 2 , and diffusion (D) measurements were strongly in agreement with each other. The Pearson correlation coefficient, R, of D (%) versus T 1 (%), D (%) versus T 2 (%), and T 1 (%) versus T 2 (%), was 0.984, 0.966, and 0.9868, respectively. The three pulse sequences can be employed in a portable NMR device to deliver continuous quantitative measurements of MD in breast tissue samples. As a result, the method demonstrated to be acceptable for determining the distribution of MDs among breast tissue samples without the need for additional qualitative analysis. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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3. Elimination of biological and physical artifacts in abdomen and brain computed tomography procedures using filtering techniques.
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Omer, Hiba, Tamam, Nissren, Alameen, Suhaib, Algadi, Sahar, Thanh Tai, Duong, and Sulieman, Abdelmoneim
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• Filters reduce the noise at the expense of visual image quality. • Digital interpretation of images prevents misinterpretation of the images due to blurring of the images. • Dose reduction without compromising the diagnostic. Medical images are usually affected by biological and physical artifacts or noise, which reduces image quality and hence poses difficulties in visual analysis, interpretation and thus requires higher doses and increased radiographs repetition rate. This study aims at assessing image quality during CT abdomen and brain examinations using filtering techniques as well as estimating the radiogenic risk associated with CT abdomen and brain examinations. The data were collected from the Radiology Department at Royal Care International (RCI) Hospital, Khartoum, Sudan. The study included 100 abdominal CT images and 100 brain CT images selected from adult patients. Filters applied are namely: Mean filter, Gaussian filter, Median filter and Minimum filter. In this study, image quality after denoising is measured based on the Mean Squared Error (MSE), Peak Signal-to-Noise Ratio (PSNR), and the Structural Similarity Index Metric (SSIM). The results show that the images quality parameters become higher after applications of filters. Median filter showed improved image quality as interpreted by the measured parameters: PSNR and SSIM, and it is thus considered as a better filter for removing the noise from all other applied filters. The noise removed by the different filters applied to the CT images resulted in enhancing high quality images thereby effectively revealing the important details of the images without increasing the patients' risks from higher doses. Filtering and image reconstruction techniques not only reduce the dose and thus the radiation risks, but also enhances high quality imaging which allows better diagnosis. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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4. Job belonging among healthcare workers in radiology departments in Saudi Arabia
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Aljondi, Rowa, Alghamdi, Salem Saeed, Alyanbawi, Samaher, Alghamdi, Abdulrzzag, Alshomrani, Bander, Awan, Zuhier, Alsafi, Khalid, Tajaldeen, Abdulrahman, Mattar, Essam, Khazindar, Abdullah R., and Sulieman, Abdelmoneim
- Abstract
job satisfaction among healthcare workers plays a crucial role in improving radiology service, including diagnosis of imaging, disease monitoring, therapy guidance, and treatment plans.
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- 2022
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5. Radiobiological risks in terms of effective dose and organ dose from 18F-FDG whole-body PET/CT procedures.
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Alameen, Suhaib, Tamam, Nissren, Awadain, Sami, Sulieman, Abdelmoneim, Alkhaldi, Latifa, and Hmed, Amira Ben
- Abstract
Integrated Positron Emission Tomography (PET) with Computerized tomography (CT) (PET/CT) are widely used to diagnose, stage and track human diseases during whole body scanning. Multi-modality imaging is an interesting area of research that aims at acquiring united morphological-functional image information for accurate diagnosing and staging of the disease. However, PET/CT procedure accompanied with high radiation dose from CT and administered radioactivity. The aim of the present study was to estimate the patients' dose from
18 F-fluorodeoxyglucose imaging (18F-FDG) hybrid PET/CT whole body scan. RADAR (Radiation Dose Assessment Resource) software was used to estimate the effective dose for 156 patients (110 (70.5%)) males and 46 (39.5%) female) examined using Discovery PET/CT 710, GE Medical Systems installed at Kuwait Cancer Control Center (KCCC). The effective dose results presented in this PET/CT study ranged from (1.56–9.94 mSv). The effective dose was calculated to be 3.88 mSv in females and 3.71 mSv in males. The overall breast (female), lung, liver, kidney and thyroid were 7.4, 7.2, 5.2, 4, 3 and 2.9, respectively. For females, the body mass index (BMI) was 28.49 kg/m2 and for males it was 26.50 kg/m2 which showed overweight values for both genders. Conclusions: The findings indicate that the effective dose of 18F-FDG in both male and female patients was not substantially different. The study suggested that the risk–benefit proportions of any18 F-FDG whole body PET/CT scan should be clarified and carefully weighed. Patient's doses are lower compared with previous studies. [ABSTRACT FROM AUTHOR]- Published
- 2021
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6. Radiation safety and shielding evaluation of newly installed medical LINAC facility in Bangladesh
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Uddin, Md Fakhar, Begum, Mahfuza, Ahmed, Mahiuddin, Atiquzzaman, Md, Osman, Hamid, Tamam, Nissren, Sulieman, Abdelmoneim, Akter, Shirin, and Khandaker, Mayeen Uddin
- Abstract
Medical linear accelerator (Linac) is widely used for radiotherapy purposes which is one of the modalities for radiation therapy. When a Linac is being installed, an initial survey is required during the first beam and a complete shielding survey must be carried out after the Linac has been operational and calibration is completed. Based on the detailed survey report, the facility license is issued. Worldwide several organizations provide various recommendations regarding shielding design and radiation safety issues. The purpose of this paper is to show how to assess or validate the radiation safety and shielding status of the newly installed Linac facility in Bangladesh. In this study, one of the Linac facilities in Dhaka city has been chosen which was installed in 2021. The dose rate meter RadEYE PRD and tele survey meter TELE-STTC are used for x-ray/gamma-ray dose measurement and REM 12/4 count rate meter for neutron measurement. A maximum photon dose of 5.56 μSvh−1was observed at a gantry angle of 900along the center front of the door, while a maximum neutron dose of 1 μSvh−1was found at three different locations. The obtained results are in line with the recommendations by controlling organizations. This study found that the Linac can be operated safely for both conventional and IMRT modes, and the same shielding procedure can be followed all over the country for the same Linac setting.
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- 2024
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7. Recognition of brain tumors in MRI images using texture analysis.
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Elshaikh, Buthayna G., Garelnabi, MEM, Omer, Hiba, Sulieman, Abdelmoneim, Habeeballa, B., and Tabeidi, Rania A.
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Brain neoplasms or intracranial tumors, which are more common in older adults, can affect individuals of any age including pediatric and children. Exposure to carcinogenic agents including ionizing radiation and family history is one of the main causes of the disease. Early diagnosis is crucial to avoid prolonged. patients' suffering. The aim of the study was to efficiently recognize the brain tumors from the other brain tissues which include grey and white matter as well as cerebrospinal fluid (CSF). This study was performed using axial, sagittal and coronal views for fifty brain tumor patients randomly selected from a set of 200 patients, with a "control" set consisting of images showing no sign of disease; and the "test" brain MRI images for patients diagnosed with brain tumor. The study includes both genders with age ranging from 18 years to 83 years old, (56.5 ± 17.2). The brain images were acquired using a standard head coil Philips Intera 1.5 Tesla machine (USA). The thickness of each section in the entire sequence was 8 mm. Acquisition of T2-weighted and T1-weighted were performed. Interactive Data Language software was used to analyze the data. The results of this study showed that: the overall accuracy of classification process was 94.8%, and for the tumor; the sensitivity was 97.3%. White matter and grey matter showed a classification accuracy of 95.7% and 89.7% and for CSF the accuracy was 94.3%. The results showed that brain tumor can be classified successfully and delineated using texture analysis with minimum efforts and with high accuracy for brain tumors. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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8. Eye lens and thyroid gland radiation exposure for patients undergoing brain computed tomography examination.
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Omer, Hiba, Alameen, Suhaib, Mahmoud, Waleed E., Sulieman, Abdelmoneim, Nasir, Omaima, and Abolaban, Fouad
- Abstract
This study aims to estimate the effective radiation dose and organ dose from head CT procedures. It was conducted in three main private hospitals in Khartoum State-Sudan, using Toshiba machines with 64 slices. The total number of patients included in this study was 142 patients (82 males and 60 females). The effective dose and organ dose were calculated by CT Expo software. The effective dose slightly varied among patients according to gender and age. The effective dose for female patients (5.99 mSv) was higher than that for male patients (5.84 mSv), and the pediatric dose (5.46 mSv) was lower than the adults' dose (5.94 mSv). The dose for eye lens was found lower for male patients (89.117 mSv) than the dose for female patients (94.62) mSv). According to patients' age: the dose received by the lens of the eye was much lower in pediatric (79.93 mSv) than the adults (92.41 mSv). The dose for thyroid in female patients (33.52 mSv) was higher than the male patients (28 mSv). The pediatric dose (28.34 mSv) was lower than the adults' dose (30.64 mSv). Departmental imaging protocol and lack of training among hospital staff are expected to be responsible for these variations. Therefore, this study recommends that the CT technologists be trained on suitable strategies to achieve dose optimization. Moreover, patients' doses must be monitored regularly. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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9. An open-source software for calculating 1D gamma index in radiation therapy.
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Tai, Duong Thanh, Omer, Hiba, Quoc, Le Cuong, Hai, Nguyen Xuan, Minh, Truong Van, Sulieman, Abdelmoneim, Mattar, Essam, Toufig, Hind, Tamam, N., and Bradley, David A.
- Abstract
This study was developed to create computer software for performing the gamma index comparison between measurement and Monte Carlo (MC) simulation for the percentage depth dose (PDD) and beam off-center ratio profile (OCR). The gamma software was built in the matrix laboratory (MATLAB) software environment. The developed software was compared with ScanDosematch and Bistromath software's gamma evaluation to assess its accuracy. A set of reference and evaluated dose distribution, which were obtained from measurement and MC simulation, was input to the software to calculate the 1D gamma index using different criteria (i.e. 3%/3 mm, 2%/3 mm, and 2%/2 mm). We compared the two results of gamma index at 3%/3 mm, 2%/3 mm, and 2%/2 mm criteria, one calculated by the proposed software and one manually. The comparison showed high agreement between the proposed software and theoretical calculation. Based on the results, we concluded that our developed software has high accuracy, compared to theoretical calculation. This software could serve as a non-commercial and open-source tool for researchers and students. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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10. Evaluation of the Small-animal Nano Scan PET/CT System using 89Zr
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Alzimami, Khalid, Alanazi, Sitah, Gannam, Magdi, Alanazi, Ahmad, Aljamaz, Ibrahim, Alyanbawi, Suliman, Alotaibi, Basem, Almalki, Yousif, Sulieman, Abdelmoneim, and Sassi, Salem
- Abstract
Introduction: The purpose of the present work was to evaluate the imaging characteristics of
89 Zr-PET in comparison with those obtained using fluorine-18 Fluorodeoxyglucose (18FFDG) PET (a gold standard tracer in PET imaging) using a small-animal NanoScan PET/CT scanner. Methods: The system’s spatial resolution, sensitivity, uniformity, and image quality were measured on a Nano Scan small-animal PET/CT scanner according to the NEMA NU4-2008 protocols. For reconstruction images, we used 2D and 3D reconstruction algorithms. The reconstruction methods included filter back projection (FBP), the ordered subsets expectation maximization (OSEM) algorithm, and the 3D Tera-Tomo algorithm, which are developed for the NanoScan small-animal PET/CT scanner. Results: The results obtained showed a significant difference in the spatial resolution for89 Zr as compared to 22Na and 18F when using a 2D reconstruction algorithm. The spatial resolution values were much enhanced by using the 3D Tera-Tomo reconstruction for each isotope, the Full width at half maximum (FWHM) values was less than 1 for all isotopes at the center of the field of view (FOV). This difference in spatial resolution is dependent on the positron range, energy, and the reconstruction method. Conclusion: The long half-life of89 Zr makes it an ideal positron emitter for performing immuno- PET, which is matched with the biological half-life of intact mAbs.89 Zr can also give several advantages over other long half-life positron emitters in relation to the overall imaging performance because of its relatively short positron range and simpler decay scheme. The values of89 Zr sensitivity that were obtained in the present study were less than those of previous studies.- Published
- 2021
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11. Characterization of portal hypertension in hepatosplenic schistosoma mansoni patients using B-mode ultrasound
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Mahmoud, Mustafa Z., Yonis, Abdalgadir, Abdullah, Alsafi, Ali, Muna, Abukonna, Ahmed, Alsaadi, Mohammed, Sulieman, Abdelmoneim, Hamid, Omer, and Hassan, Mahasin G.
- Abstract
This study was designed to characterize portal hypertension (PH) by assessing cirrhosis, estimating portal vein (PV) width and spleen size, identifying ascites and deciding abnormal collateral routes in hepatosplenic Schistosoma mansoni patients using brightness mode (B-mode) ultrasound (US). A total of 209 adult patients with hepatosplenic Schistosoma mansoni were prospectively recruited from the Gezira state in central Sudan between February 2016 and May 2019. The sonographic features observed include the overall assessment of liver size, PV diameter, gallbladder (GB) wall thickness, splenic size, the lack of or reduced respiratory variations of the splenic vein (SV), collateral circulation and the presence of ascites. The results revealed that a majority of patients were affected with PH due to schistosomiasis infection (94.7%), liver cirrhosis (3.8%) and viral cirrhosis (1.4%). The measures of PV diameter and the lack of or reduced respiratory variations of SV in patients affected with schistosomiasis were statistically significant when compared with the mean value obtained from the healthy adult participants in the control group (p < 0.05). Furthermore, over half of the examined patients presented with portosystemic collaterals. In conclusion, the US findings were highly specific and sufficient to diagnose PH due to schistosomiasis infection.
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- 2020
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12. Assessment of Rejected Radiographs during planar imaging procedures
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Otayni, Ahmed, Aftan, Ashwaq Ali, Nammazi, Jassim, Aljwear, Amal, Mahnashy, Amnah, Al Dosary, Maha, Saleh Hamlan, Layla, Alkhthlan, Mohammed, Mubaraki, Abdulaziz, Saeed, Mohammed Khalil, Alhawwasi, Muath, Tamam, Nissren, Mohtasib, Rafat, and Sulieman, Abdelmoneim
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Radiographic Imaging represents the largest source of exposure to ionizing radiation humans from artificial sources. The estimated annual radiation exposure per individual in the United States is 6.20 mSv. This study aims to evaluate the rejection rate at King Khalid Hospital-Al-Kharj retrospectively and to identify the causes of rejection to radiographic technique. This study was carried out at King Khalid Hospital (KKH) and Prince Sultan center for health services (PSCHS) in Al-Kharj City, Saudi Arabia. The radiographs were retrospectively analyzed for seven digital X-ray machines for three consecutive months. Reject rates per technologist and cause for rejection were analyzed. In total, 22552 radiographic images were acquired for 11134 patients (15363 radiographs) obtained over a period of three months. 67.1% (7544 patients) of the patients are males. Two thousand two hundred five patients were pediatric, representing 19.8% of the all-patients group. In total, 50 technologists are working in the radiology departments with different levels of qualification (Diploma, and Bachelor of Science) and experience. 27 (54%) radiography technologist are working at the planar radiography departments. The overall average positioning error is 34.26%, while the anatomical cut-off is 13.37%. Therefore, staff training is recommended to ensure that patients are well positioned regarding patient setup and body positioning with the proper exposure setting. The study showed no significant difference between image receptors in reject analysis, suggesting that operator performance and professional experience are more important factor than type of image receptor. The study showed that screen film radiography (SFR) is still used in many African countries, while computed radiography (CR) and digital radiography (DR) are dominant in Gulf, Europe, and the United States.
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- 2023
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13. Assessment of radiation exposure in a nuclear medicine department of an oncology hospital
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Hung, Hoang T.P., Tuyen, Pham Nhu, Tai, Duong Thanh, Long, Ha Quoc, Sulieman, Abdelmoneim, Omer, Hiba, Tamam, Nissren, Almujally, Abdullah, Chow, James C.L., and Lee, Ting-Yim
- Abstract
Medical personnel in nuclear medicine departments are exposed to ionizing radiation which is associated with cancer induction and mortality risks. Examples of such personnel are those working in the hot-areas where radioisotopes for nuclear medicine examinations are prepared. This work aims to estimate the occupational radiation exposure for workers at the Nuclear Medicine department in Da Nang Oncology Hospital, Vietnam.
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- 2023
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14. Mapping high-grade glioma response to chemoradiotherapy: Insights from fractional anisotropy and mean diffusivity
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Mousa, Mahmoud I., Youssef, Ayda, Hamed, Mahmoud R., Mousa, Walaa B., Al Ajerami, Yasser, Akhdar, Hanan, Eisa, Mohamed Hassan, Ibnaouf, Khalid H., and Sulieman, Abdelmoneim
- Abstract
The current study aimed to investigate the use of fractional anisotropy (FA) and mean diffusivity (MD) as a non-invasive probe for assessing chemoradiotherapy (CRT) efficacy in 32 high-grade glioma patients (HGGs). Diffusion tensor imaging (DTI) was performed pre- and post-CRT, and FA and MD maps were constructed with Philips MRI 1.5 T beside Intellispace software. Tumor regression and progression were assessed by changes in tumor size monitored with T1-contrast enhancement, with 15 cases (46.9%) demonstrating regression and 17 cases (53.1%) showing progression. The cut-off values of mean before CRT FA and MD in the tumor core were 0.345 and 0.957 × 10–3 mm2/s, respectively, with a sensitivity of 73.3% and 86.7% and a specificity of 70.6% and 52.9%. In the peritumoral zone, the mean values of pre-FA and MD were 0.415 and 1.21 × 10–3 mm2/s, respectively, with a sensitivity of 93.3% and 86.7% and a specificity of 76.5% for both. Comparatively, the cut-off values of mean after CRT FA and MD in the tumor core were 0.295 and 0.965 × 10–3 mm2/s, respectively, with a sensitivity of 99.2% and 98.1% and a specificity of 94.1% and 93.1%. Higher post-CRT FA and MD values were associated with better treatment response rates, indicating that FA and MD are valuable DTI metrics for assessing CRT efficacy in HGG regression and progression without invasive procedures.
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- 2023
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15. Dosimetric and radiobiological comparison in head-and-neck radiotherapy using JO-IMRT and 3D-CRT.
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Tai, Duong Thanh, Oanh, Luong Thi, Phuong, Pham Hoai, Sulieman, Abdelmoneim, Abolaban, Fouad A., Omer, Hiba, and Chow, James C.L.
- Abstract
Dosimetric and radiobiological evaluations for the Jaws-only Intensity-modulated radiotherapy (JO-IMRT) technique for head and neck jaws-only intensity-modulated radiation therapy (JO-IMRT) and 3D conformal radiation therapy (3D-CRT). To compare the head-and-neck therapeutic approaches utilizing JO-IMRT and 3D-CRT techniques, different radiation dose indices were calculated, including: conformity index (CI), homogeneity index (HI), and radiobiological variables like Niemierko's equivalent uniform dose based tumor control probability (TCP) of planning target volume (PTV), normal tissue complication probability (NTCP) of organs at risk (OAR) (brainstem, spinal cord, and parotid grand). Twenty-five nasopharynx patients were studied using the Prowess Panther Treatment Planning System (Prowess Inc). The results were compared with the dose distribution obtained using 3D-CRT. Regarding tumor coverage and CI, JO-IMRT showed better results than 3D-CRT. The average doses received by the PTVs were quite similar: 72.1 ± 0.8 Gy by 3D-CRT and 72.5 ± 0.6 Gy by JO-IMRT plans (p > 0.05). The mean doses received by the parotid gland were 56.7 ± 0.7 Gy by 3D-CRT and 26.8 ± 0.3 Gy by JO-IMRT (p > 0.05). The HI and CI were 0.13 ± 0.01 and 0.14 ± 0.05 and (p > 0.05) by 3D-CRT and 0.83 ± 0.05 and 0.73 ± 0.10 by JO-IMRT (p < 0.05). The average TCP of PTV was 0.82 ± 0.08 by 3D-CRT and 0.92 ± 0.02 by JO-IMRT. Moreover, the NTCP of the parotid glands, brain stem, and spinal cord were lower using the JO-IMRT than 3D-CRT plans. In comparison to the 3D-CRT approach, the JO-IMRT technique was able to boost dose coverage to the PTV, improve the target's CI and HI, and spare the parotid glands. This suggests the power of the JO-IMRT over 3D-CRT in head-and-neck radiotherapy. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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16. The reliability of duplex ultrasound in diagnosing popliteal artery entrapment syndrome: An observational pilot study
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Alsaadi, Mohammed J., Aljabri, Badr, Sulieman, Abdelmoneim, and Mahmoud, Mustafa Z.
- Abstract
Popliteal artery entrapment syndrome (PAES) is a vascular compression affecting young people. PAES can cause claudication and lead to distal blood flow reduction. Ultrasound could provide a direct and indirect diagnosis approach using different provocative maneuvers. However, the reliability and accuracy of Duplex ultrasound alone to diagnose PAES are uncertain. This study hypothesizes that Duplex ultrasound could lead to false-positive results. Therefore, the study aims to assess the popliteal artery diameter and velocity profile in asymptomatic young people at different provocative maneuvers.
- Published
- 2022
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17. Attenuation of ovalbumin-induced inflammation and lung oxidative injury in asthmatic rats by Zingiber officinaleextract: combined in silico and in vivo study on antioxidant potential, STAT6 and TNF-αpathways
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Jedli, Olfa, Ben-Nasr, Hmed, Zammel, Nourhène, Rebai, Tarek, Saoudi, Mongi, Elkahoui, Salem, Jamal, Arshad, Siddiqui, Arif J., Sulieman, Abdelmoneim E., Alreshidi, Mousa M., Naïli, Houcine, and Badraoui, Riadh
- Abstract
In the present study we focused on the anti-asthmatic and antioxidant effects of Zingiber officinalis roscoeL. (ZO) aqueous extract. This study includes 20 adult male rats, which were grouped into four; Group I: control group; Group II: asthmatic group (Ovalbumin sensitized/challenge model, Oval group); Group III: received ovalbumin sensitized/challenge associated a dose of 207 mg/kg body weight (BW) of ZO (Oval + D1 group); Group IV: received ovalbumin sensitized/challenge associated a dose of 414 mg/k BW of ZO (Oval + D2 group). After 21 days, blood and lung samples were collected for biochemical, hematological, and histopathological analyses. The ameliorative effect of ZO phytochemical compounds was also assessed by in silico approach on transducer and activator of transcription 6 (STAT6) and tumor necrosis factor-α(TNF-α) receptors. The oxidative/antioxidative status was evaluated in the lung tissues. Our results show that ZO extract alleviated the ovalbumin-induced hematological and biochemical disruptions associated oxidative injury. In fact, white and red blood cells (WBC and RBC, respectively), aspartate aminotransaminase (ASAT), malondialdehyde (MDA), glutathione (GSH), and glutathione peroxidase (GPx) were significantly disrupted (p< 0.05) in Oval group and alleviated following ZO treatment. Besides, several histopathological features were outlined in lung tissues of Oval group. Interestingly, ZO was found to exert ameliorative effects on tissue level. In silico analyses, particularly the binding affinities, the number of H-bonds, the embedding distance and the molecular interactions of ZO phytochemical compounds with either STAT6 or TNF-αsupported the in vivo results. These findings confirm the potential ethno-pharmacological effects of ZO against asthma and its associated complications.
- Published
- 2022
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18. XSTING, Software for Evaluation of Radiotherapy Planning Performed Using EGSnrcMP Codes
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Eldin Sayed Omer, Hiba Baha, Sulaiman Alzimami, Khalid, and Adam Mohamed Sulieman, Abdelmoneim
- Abstract
Radiotherapy research requires a flexible computational research environment for Monte Carlo and patientspecific treatment planning. The ability to perform organs delineation and measurements of dose distribution within the patient is necessary for analysis of treatment parameters. XSTING was used for the evaluation of chest-wall irradiation using electron beams. Treatment planning was performed by EGSnrcMP (BEAMnrc and DOSXYZnrc); the dose files were transported to XSTING to calculate isodose distribution and dose volume histograms (DVH). The results were compared with those produced by DOSXYZnrc output as well as the 3D representation of volumes receiving a certain dose range, to make sure that XSTING accurately computes DVHs. The results showed a good match in isodose distributions and DVHs for volume of the lung that received specified dose-levels thus proving the accuracy of XSTING. The short time needed to perform dose distribution measurements proved that XSTING can be used in patient-specific treatment planning. XSTING can thus be used effectively in Monte Carlo research.
- Published
- 2014
19. Assessment of the professional practice knowledge of computed tomography preceptors
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Abuzaid, Mohamed M., Elshami, Wiam, Noorajan, Zarmeena, Khayal, Simaa, and Sulieman, Abdelmoneim
- Abstract
•CT technologists showed good knowledge about the exposure parameters.•CT technologists were capable of modifying parameters.•CT technologists should be involved in protocols designing.•More efforts about DRLs importance and implementation should be made.
- Published
- 2020
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