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Start Over Author "Piras A." Journal ultrasound in obstetrics & gynecology
50 results on '"Piras A."'

3. Coronal plane on three‐dimensional ultrasound in diagnosis of ectopic pregnancy.

Author

Guerriero, S., Piras, B., Robuschi, M. L., Suzzi, L., and Ajossa, S.

Subjects
*ECTOPIC pregnancy, *ANATOMICAL planes, *ULTRASONIC imaging, *HIGH-risk pregnancy, *PREGNANCY outcomes, *HUMAN reproduction
Abstract

This article describes a case study of a 42-year-old woman who presented with heavy vaginal bleeding. A transvaginal ultrasound scan revealed a normal uterus with an intrauterine system (IUS) in place, but also detected an ectopic pregnancy in the left adnexa. Three-dimensional (3D) ultrasound was then used to confirm the presence of both the IUS and the ectopic pregnancy. The patient underwent emergency surgery to remove the ectopic pregnancy. The article suggests that 3D ultrasound can be a valuable tool in diagnosing complicated cases of ectopic pregnancy and recommends its use in early pregnancy scans. [Extracted from the article]

Published
2024
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5. OC15.07: Ultrasonographic 'soft' markers for the detection of rectosigmoid endometriosis

Author

Stefano Guerriero, M. Perniciano, Ignacio Rodríguez, Alessandra Piras, Valerio Mais, Luca Saba, Silvia Ajossa, Maria Angela Pascual, and J. L. Alcazar

Subjects
medicine.medical_specialty, 030219 obstetrics & reproductive medicine, Radiological and Ultrasound Technology, business.industry, Endometriosis, Obstetrics and Gynecology, General Medicine, medicine.disease, 030218 nuclear medicine & medical imaging, 03 medical and health sciences, 0302 clinical medicine, Reproductive Medicine, medicine, Radiology, Nuclear Medicine and imaging, Radiology, business
Published
2018

8. OC04.04: Is the introduction of magnetic resonance in the diagnostic workout of adnexal masses just an increase of costs when IOTA Simple Rules are applied?

Author

J. L. Alcazar, Ignacio Rodríguez, Stefano Guerriero, Silvia Ajossa, M. Perniciano, Maria Angela Pascual, Valerio Mais, Luca Saba, and Alessandra Piras

Subjects
Iota, Reproductive Medicine, Radiological and Ultrasound Technology, medicine.diagnostic_test, Simple (abstract algebra), business.industry, medicine, Obstetrics and Gynecology, Radiology, Nuclear Medicine and imaging, Magnetic resonance imaging, General Medicine, business, Algorithm
Published
2018

10. Transvaginal sonography in diagnosis of vesicoperitoneal fistula due to deep infiltrating endometriosis as a cause of uroperitoneum

Author

C. Peddes, Stefano Guerriero, E. Paladino, and Bruno Piras

Subjects
Gynecology, medicine.medical_specialty, Radiological and Ultrasound Technology, Uroperitoneum, business.industry, Fistula, Obstetrics and Gynecology, General Medicine, medicine.disease, Deep infiltrating endometriosis, Reproductive Medicine, Transvaginal sonography, medicine, Radiology, Nuclear Medicine and imaging, Radiology, business
Published
2012

11. OP03.05: Ovarian response to the gonadotropins during IVF or ICSI cycles in patients with presence of deep infiltrating endometriosis based on ultrasonography

Author

Stefano Guerriero, Alessandra Piras, Valerio Mais, C. De Croce, F. Pilla, F. Mostallino, and Silvia Ajossa

Subjects
medicine.medical_specialty, Reproductive Medicine, Radiological and Ultrasound Technology, business.industry, Urology, Obstetrics and Gynecology, Medicine, Radiology, Nuclear Medicine and imaging, In patient, General Medicine, Ultrasonography, business, Deep infiltrating endometriosis
Published
2017

13. IOTA simple rules for discriminating between benign and malignant adnexal masses: prospective external validation

Author

Alessandra Piras, Lourdes Hereter, Stefano Guerriero, F. Sedda, B. Olartecoechea, R. Julve, Maria Angela Pascual, Begoña Gastón, C. Peddes, Betlem Graupera, Luca Saba, M. Aubá, J. L. Alcazar, and Silvia Ajossa

Subjects
Gynecology, medicine.medical_specialty, Radiological and Ultrasound Technology, business.industry, External validation, Obstetrics and Gynecology, General Medicine, medicine.disease, Adnexal mass, Iota, Ovarian tumor, Transvaginal ultrasound, Reproductive Medicine, Patient age, Medicine, Radiology, Nuclear Medicine and imaging, Radiology, Tumor removal, business, Prospective cohort study
Abstract

Objective To determine the diagnostic performance of International Ovarian Tumor Analysis (IOTA) ‘simple’ rules for discriminating between benign and malignant adnexal masses. Methods A prospective study was performed between January 2011 and June 2012. Eligible patients were women diagnosed with a persistent adnexal mass who presented to the participating centers. Four trainees evaluated the adnexal mass by transvaginal ultrasound under the supervision of an expert examiner. The trainee analyzed the mass according to IOTA simple rules and provided a diagnosis of benign, malignant or inconclusive. All women included in the study underwent surgery and tumor removal in the center of recruitment. Diagnostic performance was assessed by calculating sensitivity, specificity and positive (LR+) and negative (LR–) likelihood ratios. Results A total of 340 women were included (mean patient age, 42.1 (range, 13–79) years). Of the tumors, 55 (16.2%) were malignant and 285 (83.8%) were benign. The IOTA simple rules could be applied in 270 (79.4%) cases. In these cases, sensitivity was 87.9% (95% CI, 72.4–95.2), specificity 97.5% (95% CI, 94.6–98.8), LR+ 34.7 (95% CI, 15.6–77.3) and LR– 0.12 (95% CI, 0.05–0.31). Conclusions Application of the IOTA simple rules yielded acceptable results in terms of specificity in the hands of non-expert examiners. However, with non-expert examiners there was a 12% false-negative rate, which is relatively high. Copyright © 2013 ISUOG. Published by John Wiley & Sons Ltd.

Published
2013

14. P19.10: Umbilical vein volume flow at 11-14 weeks in monochorionic twin pairs with subsequent twin-twin transfusion or selective intrauterine growth restriction

Author

A. Luculano, A. Piras, Maria Angelica Zoppi, M. Arras, and Giovanni Monni

Subjects
medicine.medical_specialty, Radiological and Ultrasound Technology, business.industry, Obstetrics, Obstetrics and Gynecology, Intrauterine growth restriction, General Medicine, Twin twin transfusion, medicine.disease, Umbilical vein, Reproductive Medicine, medicine, Radiology, Nuclear Medicine and imaging, business
Published
2014

15. OC16.07: Diagnostic performance of two-dimensional and three dimensional ultrasonography and MR in the detection of deep endometriosis

Author

Guerriero, S., primary, Saba, L., additional, Perniciano, M., additional, Alcazar, J., additional, Pascual, M., additional, Ajossa, S., additional, Cappai, A., additional, Piras, A., additional, Fabbri, P., additional, Pilla, F., additional, Mostallino, F., additional, Zanda, V., additional, Angiolucci, M., additional, Mais, V., additional, and Melis, G., additional

Published
2015
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17. OP11.01: Reproducibility of IETA colour score for assessing endometrial vascularisation using colour Doppler

Author

Maria Angela Pascual, P. Fabri, L. Juez, V. Herranz, C. de Lorenzo, Betlem Graupera, Alessandra Piras, J. Utrilla-Layna, Silvia Ajossa, J. L. Alcazar, and Stefano Guerriero

Subjects
Reproducibility, Reproductive Medicine, Radiological and Ultrasound Technology, business.industry, Colour doppler, Obstetrics and Gynecology, Medicine, Radiology, Nuclear Medicine and imaging, General Medicine, business, Nuclear medicine
Published
2015

18. OC16.07: Diagnostic performance of two-dimensional and three dimensional ultrasonography and MR in the detection of deep endometriosis

Author

P. Fabbri, Stefano Guerriero, Alessandra Piras, Silvia Ajossa, M. Perniciano, G. B. Melis, Valerio Mais, J. L. Alcazar, Maria Angela Pascual, F. Pilla, Luca Saba, F. Mostallino, V. Zanda, A. Cappai, and Marco Angiolucci

Subjects
medicine.medical_specialty, Reproductive Medicine, Radiological and Ultrasound Technology, Deep endometriosis, business.industry, medicine, Obstetrics and Gynecology, Radiology, Nuclear Medicine and imaging, Three dimensional ultrasonography, General Medicine, Radiology, business
Published
2015

19. OC11.01: Prevalence of deep endometriosis in patients of a second level ultrasound laboratory and tissue US characterization of nodules using VOCAL

Author

Guerriero, S., primary, Zanda, V., additional, Ajossa, S., additional, Peddes, C., additional, Soggiu, B., additional, Piras, S., additional, Sedda, F., additional, Verniciano, M., additional, Pilloni, M., additional, Piras, B., additional, Solvetti, E., additional, Mais, V., additional, Melis, G. B., additional, Alcazar, J., additional, and Paoletti, A. M., additional

Published
2011
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20. OC02.04: Three dimensional (3D) ultrasonography improves the accuracy of two dimensional (2D) ultrasonography in the diagnosis of deep endometriosis

Author

Alessandra Piras, Stefano Guerriero, J. L. Alcazar, Luca Saba, Silvia Ajossa, M. Perniciano, G. B. Melis, B. Soggiu, and C. Peddes

Subjects
medicine.medical_specialty, Reproductive Medicine, Radiological and Ultrasound Technology, business.industry, Deep endometriosis, Obstetrics and Gynecology, Medicine, Radiology, Nuclear Medicine and imaging, General Medicine, Radiology, 3d ultrasonography, Ultrasonography, business
Published
2013

21. OC11.01: Prevalence of deep endometriosis in patients of a second level ultrasound laboratory and tissue US characterization of nodules using VOCAL

Author

Bruno Piras, Valerio Mais, V. Zanda, Anna Maria Paoletti, J. L. Alcazar, Stefano Guerriero, E. Solvetti, M. Verniciano, F. Sedda, Silvia Ajossa, S. Piras, M. Pilloni, B. Soggiu, C. Peddes, and G. B. Melis

Subjects
medicine.medical_specialty, Radiological and Ultrasound Technology, medicine.diagnostic_test, business.industry, Deep endometriosis, Ultrasound, Obstetrics and Gynecology, Magnetic resonance imaging, 3d model, General Medicine, medicine.disease, Normal fetus, DICOM, Reproductive Medicine, Conjoined twins, medicine, Radiology, Nuclear Medicine and imaging, In patient, Radiology, business
Abstract

Objectives: To generate physical fetal models using images obtained by 3-dimensional ultrasound (3DUS), magnetic resonance (MR) and computed tomography (CT) to guide additive manufacturing (AM) technology. Methods: Images from 45 fetuses, including 4 sets of twins, were used. Twenty-three fetuses were normal and evaluated only by 3DUS. Twenty-two cases had complications such as conjoined twins; tumors; aneuploidy; skeletal; central nervous system; facial or thoracic defects. Scans were performed using high-resolution 3DUS. In cases of abnormalities, MR and CT were performed on the same day as 3DUS. The images obtained with 3DUS, MR or CT, were exported to a workstation in Digital Imaging and Communications in Medicine format. A single observer performed slice-by-slice manual segmentation using a digital high definition screen. Software that converts medical images into numerical models was used to construct virtual 3D models, which were physically realised using AM technologies (SLA Viper, Objet Connex 350, ZCorp 510 or FDM Vantage). Results: The main outcomes presented were the possibility to create 3D virtual and physical models from 3DUS, MRI or CT both separately and also in various combinations. AM systems allow the conversion of a 3D virtual model to a physical model in a fast, easy and dimensionally accurate process. They were remarkably similar to the postnatal appearance of the aborted fetus or newborn baby. Conclusions: This study introduced the innovative use of AM models into fetal researches. The results suggest a new possibility for educational purposes or better interaction between parents and their unborn child during pregnancy. Normal fetus (29 weeks): Virtual and physical model built in a powder-based system.

Published
2011

24. OP20.05: Three-dimensional ultrasonography and magnetic resonance imaging (MRI) in the diagnosis of deep endometriosis

Author

Guerriero, S., primary, Saba, L., additional, Alcazar, J., additional, Pascual, M., additional, Ajossa, S., additional, Peddes, C., additional, Perniciano, M., additional, Piras, A., additional, Sedda, F., additional, Fabbri, P., additional, Pilla, F., additional, Zanda, V., additional, Zajicek, M., additional, and Melis, G.B., additional

Published
2014
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25. OP29.01: Reproducibility of IOTA morphological features in ultrasonographic diagnosis of adnexal masses by less expert operators

Author

C. Peddes, S. Guerriero, S. Ajossa, B. Soggiu, F. Sedda, E. Piccione, M. Aubà, A. Piras, M. Pascual, M. Suarez, E. Paladino, L. Saba, and J. Alcazar

Subjects
Iota, Reproducibility, medicine.medical_specialty, Pathology, Reproductive Medicine, Radiological and Ultrasound Technology, business.industry, Obstetrics and Gynecology, Medicine, Radiology, Nuclear Medicine and imaging, General Medicine, Radiology, business
Published
2012

26. OC21.05: Low rate of inconclusive findings in less expert operators using ultrasound simple rules for the diagnosis of ovarian cancer

Author

F. Sedda, M. Perniciano, G. B. Melis, Luca Saba, Maria Angela Pascual, P. Fabbri, E. Paladino, J. L. Alcazar, C. Peddes, Stefano Guerriero, Alessandra Piras, E. Piccione, and M. Suarez

Subjects
medicine.medical_specialty, Radiological and Ultrasound Technology, business.industry, Ultrasound, Obstetrics and Gynecology, General Medicine, medicine.disease, Surgery, Reproductive Medicine, Medicine, Radiology, Nuclear Medicine and imaging, Radiology, business, Ovarian cancer, Simple (philosophy)
Published
2012

27. P29.04: Reproducibility and comparison of two different methods for performing mean gray value evaluation of cystic content in endometriomas using VOCAL

Author

A. M. Paoletti, Stefano Guerriero, B. Olartecoechea, M. Aubá, M. Pilloni, S. Piras, Silvia Ajossa, and J. L. Alcazar

Subjects
Gynecology, Reproducibility, medicine.medical_specialty, Reproductive Medicine, Radiological and Ultrasound Technology, business.industry, medicine, Obstetrics and Gynecology, Radiology, Nuclear Medicine and imaging, General Medicine, Nuclear medicine, business, Gray (horse)
Published
2011

28. P05.06: Brain stem/brain stem occipital bone ratio and four-lines view in fetal nuchal translucency images assessement in fetuses with open spina bifida

Author

A. Luculano, A. Piras, Marcella Floris, Maria Angelica Zoppi, M. Arras, and Giovanni Monni

Subjects
Fetus, Reproductive Medicine, Radiological and Ultrasound Technology, Nuchal translucency, business.industry, Open spina bifida, Occipital bone, Obstetrics and Gynecology, Medicine, Radiology, Nuclear Medicine and imaging, General Medicine, Anatomy, business
Published
2014

29. OP20.05: Three-dimensional ultrasonography and magnetic resonance imaging (MRI) in the diagnosis of deep endometriosis

Author

F. Pilla, F. Sedda, C. Peddes, Stefano Guerriero, Silvia Ajossa, Luca Saba, Michal Zajicek, P. Fabbri, V. Zanda, M. Perniciano, G. B. Melis, J. L. Alcazar, Maria Angela Pascual, and Alessandra Piras

Subjects
medicine.medical_specialty, Radiological and Ultrasound Technology, medicine.diagnostic_test, business.industry, Deep endometriosis, Obstetrics and Gynecology, Magnetic resonance imaging, General Medicine, Reproductive Medicine, medicine, Radiology, Nuclear Medicine and imaging, Three dimensional ultrasonography, Radiology, business
Published
2014

30. P27.11: Transvaginal ultrasonography in the diagnosis of vesico-peritoneal fistula due to deep infiltrating endometriosis as a cause of uroperitoneum

Author

Stefano Guerriero, M. Pilloni, C. Putzu, Silvia Ajossa, G. B. Melis, Bruno Piras, and Giuseppina Parodo

Subjects
medicine.medical_specialty, Radiological and Ultrasound Technology, Transvaginal ultrasonography, Uroperitoneum, business.industry, Fistula, Obstetrics and Gynecology, General Medicine, medicine.disease, Deep infiltrating endometriosis, Reproductive Medicine, medicine, Radiology, Nuclear Medicine and imaging, Radiology, business
Published
2009

31. OP30.10: Extrauterine undifferentiated endometrioid stromal sarcoma arising in endometriosis of the rectovaginal septum of a postmenopausal patient with recent onset of pelvic pain

Author

Monica Pilloni, Gavino Faa, Giuseppina Parodo, E. Ball, G. B. Melis, Silvia Ajossa, Bruno Piras, and Stefano Guerriero

Subjects
Gynecology, medicine.medical_specialty, Radiological and Ultrasound Technology, business.industry, Pelvic pain, Endometriosis, Obstetrics and Gynecology, General Medicine, medicine.disease, Reproductive Medicine, Medicine, Radiology, Nuclear Medicine and imaging, medicine.symptom, business, Recent onset, Endometrioid Stromal Sarcoma
Published
2009

33. IOTA simple rules for discriminating between benign and malignant adnexal masses: prospective external validation

Author

Alcázar, J. L., primary, Pascual, M. Á., additional, Olartecoechea, B., additional, Graupera, B., additional, Aubá, M., additional, Ajossa, S., additional, Hereter, L., additional, Julve, R., additional, Gastón, B., additional, Peddes, C., additional, Sedda, F., additional, Piras, A., additional, Saba, L., additional, and Guerriero, S., additional

Published
2013
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36. OP29.06: Perception error and levels of certainty in diagnosing ovarian cancer in operators with different degree of experience

Author

Paladino, E., primary, Guerriero, S., additional, Ajossa, S., additional, Peddes, C., additional, Soggiu, B., additional, Sedda, F., additional, Perniciano, M., additional, Aubà, M., additional, Piras, A., additional, Pascual, M., additional, Suarez, M., additional, Saba, L., additional, and Alcazar, J., additional

Published
2012
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37. OP29.09: Accuracy and reproducibility of ultrasonography for the diagnosis of ovarian cancer in operators with different degrees of experience

Author

Paladino, E., primary, Guerriero, S., additional, Ajossa, S., additional, Peddes, C., additional, Sedda, F., additional, Soggiu, B., additional, Aubà, M., additional, Perniciano, M., additional, Piras, A., additional, Pascual, M., additional, Suarez, M., additional, Saba, L., additional, and Alcazar, J., additional

Published
2012
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38. OC21.05: Low rate of inconclusive findings in less expert operators using ultrasound simple rules for the diagnosis of ovarian cancer

Author

Peddes, C., primary, Guerriero, S., additional, Fabbri, P., additional, Piccione, E., additional, Sedda, F., additional, Perniciano, M., additional, Piras, A., additional, Pascual, M., additional, Suarez, M., additional, Paladino, E., additional, Saba, L., additional, Melis, G. B., additional, and Alcazar, J., additional

Published
2012
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39. P28.04: Reproducibility of color flow location and color score in operators with different degree of experience using virtual navigation of 3D volumes

Author

Guerriero, S., primary, Alcazar, J., additional, Ajossa, S., additional, Pascual, M., additional, Sedda, F., additional, Pilloni, M., additional, Piras, A., additional, Peddes, C., additional, Soggiu, B., additional, Olartecoechea, B., additional, Auba, M., additional, and Paoletti, A. M., additional

Published
2011
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41. OP29.06: Perception error and levels of certainty in diagnosing ovarian cancer in operators with different degree of experience

Author

Luca Saba, Silvia Ajossa, M. Perniciano, Stefano Guerriero, J. L. Alcazar, Maria Angela Pascual, C. Peddes, Alessandra Piras, M. Suarez, F. Sedda, M. Aubá, B. Soggiu, and E. Paladino

Subjects
medicine.medical_specialty, Radiological and Ultrasound Technology, business.industry, Every Three Months, Ultrasound, Obstetrics and Gynecology, Ovary, General Medicine, medicine.disease, Malignancy, Transvaginal ultrasound, medicine.anatomical_structure, Reproductive Medicine, medicine, Carcinoma, Radiology, Nuclear Medicine and imaging, Cyst, Radiology, business, Ovarian cancer
Abstract

Objectives: To evaluate, sonographic, power-Doppler features and histological findings in cases of small unilocular-solid cyst in a normal-size ovary. Methods: All consecutive women with small ovarian unilocularsolid cyst in normal-size ovary detected by transvaginal ultrasound, were included in the study. Patients had either follow-up ultrasound examination every three months or underwent surgical removal of the cyst. CA 125 was also evaluated. Histological findings were reviewed. Results: A total of 45 cases were identified. The median age of the patients was 48 years (range 25–77). CA 125 was elevated (>35 UI/mL) in 6/45 (13%) cases. The median size of the cyst was 18 mm (range 11–30). The vascularization was present in 20/45 (44%) cases. 15/45 (33%) women received followup ultrasound examination every three month. 30/45 (67%) undervent laparoscopic removal of the cyst. Hystological diagnosis of malignancy (three carcinoma, and six borderline tumors) was recorded in 9/45 (20%) cases and of benign lesion in 21/45 (47%). Conclusions: These data suggest that the presence of a papillary projection is more important than the size of the cyst. Small unilocular solid cysts even in a normal-size ovary have substantial risk of malignancy.

Published
2012

42. OP29.09: Accuracy and reproducibility of ultrasonography for the diagnosis of ovarian cancer in operators with different degrees of experience

Author

F. Sedda, M. Perniciano, Stefano Guerriero, E. Paladino, Alessandra Piras, C. Peddes, M. Aubá, Maria Angela Pascual, B. Soggiu, M. Suarez, Luca Saba, J. L. Alcazar, and Silvia Ajossa

Subjects
medicine.medical_specialty, Reproducibility, Ovarian cyst, Radiological and Ultrasound Technology, Conservative management, business.industry, Obstetrics and Gynecology, Histology, General Medicine, medicine.disease, Menopause, Reproductive Medicine, Medicine, Radiology, Nuclear Medicine and imaging, Cyst, Radiology, Ultrasonography, business, Ovarian cancer
Abstract

according to the IOTA protocol. A proper counselling on a low ovarian cancer risk was given and an adequate informed consent was obtained. Sonographic follow-up was proposed at 3 and 9 months, than yearly. Surgery was proposed in case of changes of ovarian cyst volume (>50%) and/or sonographic parameters at TVS-CD. Demographic, medical, sonographic and pathologic data were recorded. Results: 98 post-menopausal patients with 106 ovarian cysts were enrolled. Median age (IR) was 69 years (59–74). Median years after menopause (IR) were 18 (8–24). Median BMI (IR) was 26 kg/m2 (24–29). Mean parity (±sd) was 2 ± 1.8 women reported bilateral cysts. 53 cysts were unilocular, 53 multilocular. Median cyst diameter (IR) of unilocular and multilocular ovarian cysts was 50 mm (34–56). At a median follow-up period of 36 months, surgery was performed in 28 cases: 14 patients required immediate removal, 5 drop-out, 9 volume changes. One successfully managed cardiac arrest occurred during laparoscopic procedure. No malignant lesions were reported at histology. Conclusions: Sonographic follow-up might be a useful option in the clinical management of incidental unilocular >5 cm and multilocular

Published
2012

44. P28.04: Reproducibility of color flow location and color score in operators with different degree of experience using virtual navigation of 3D volumes

Author

S. Guerriero, J. Alcazar, S. Ajossa, M. Pascual, F. Sedda, M. Pilloni, A. Piras, C. Peddes, B. Soggiu, B. Olartecoechea, M. Auba, and A. M. Paoletti

Subjects
medicine.medical_specialty, Reproductive Medicine, Radiological and Ultrasound Technology, Obstetrics and gynaecology, business.industry, medicine, Obstetrics and Gynecology, Radiology, Nuclear Medicine and imaging, Medical physics, General Medicine, Color flow, business, Degree (temperature)
Abstract

S. Guerriero1, J. Alcazar2, S. Ajossa1, M. Pascual3, F. Sedda1, M. Pilloni1, A. Piras1, C. Peddes1, A. Piras1, B. Soggiu1, B. Olartecoechea2, M. Auba2, A. M. Paoletti1 1Department of Obstetrics and Gynecology, University of Cagliari, Cagliari, Italy; 2Deparment of Obstetrics & Gynecology, University of Navarra, Pamplona, Spain; 3Deparment of Obstetrics & Gynecology, Institut Universitari Dexeus, Barcelona, Spain

Published
2011

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