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6. Deciphering Handwritten Text: A Convolutional Neural Network Framework for Handwritten Character Recognition

Author

Hossain, Md Jakir, Zaman, Sarah Samiha, Akash, Fardin Rahman, Alam, Farhana, Reza, Ahmed Wasif, Arefin, Mohammad Shamsul, Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Vasant, Pandian, editor, Shamsul Arefin, Mohammad, editor, Panchenko, Vladimir, editor, Thomas, J. Joshua, editor, Munapo, Elias, editor, Weber, Gerhard-Wilhelm, editor, and Rodriguez-Aguilar, Roman, editor

Published
2023
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18. Patients' perspective of quality-of-care and its correlation to quality-of-life following spontaneous coronary artery dissection.

Author

Dang, Quan, Murphy, Barbara, Graham, Robert M, Puri, Aniket, Ford, Sarah, Marschner, Simone, Chong, James J H, and Zaman, Sarah

Subjects
CORONARY artery surgery, STATISTICAL correlation, MYOCARDIAL infarction, MEDICAL quality control, PATIENTS, MENTAL health, T-test (Statistics), RESEARCH funding, ARTERIAL dissections, QUESTIONNAIRES, HOSPITAL admission & discharge, SAMPLE size (Statistics), DESCRIPTIVE statistics, CHI-squared test, AGE distribution, MANN Whitney U Test, SURVEYS, PROFESSIONS, QUALITY of life, RESEARCH, DATA analysis software, PATIENTS' attitudes, CARDIOLOGISTS, COMORBIDITY, REGRESSION analysis
Abstract

Aims Spontaneous coronary artery dissection (SCAD) is an under-recognized cause of myocardial infarction. We aimed to investigate SCAD survivors' perceptions of their quality-of-care and its relationship to quality-of-life. Methods and results An anonymous survey was distributed online to SCAD survivors involved in Australian SCAD support groups, with 172 (95.3% female, mean age 52.6 ± 9.2 years) participants in the study. The survey involved assessment of quality-of-life using a standardized questionnaire (EQ-5DTM-3L). Respondents rated the quality-of-care received during their hospital admission for SCAD with a median of 8/10 [interquartile range (IQR) 7–10]. Respondents ≤ 50 years vs. >50 years were more likely to perceive that their symptoms were not treated seriously as a myocardial infarction (χ2 = 4.127, df = 1, P < 0.05). Participants rated clinician's knowledge of SCAD with a median of 4/10 (IQR 2–8) and 7/10 (IQR 3–9) for Emergency and Cardiology clinicians, respectively (P < 0.05). The internet was the most selected source (45.4%) of useful SCAD information. The mean EQ-5DTM summary index was 0.79 (population norm 0.87). A total of 47.2% of respondents reported a mental health condition diagnosis, with 36% of these diagnosed after their admission with SCAD. Quality-of-life was significantly associated with perceived quality-of-care: EQ-5DTM index/(1-EQ-5DTM index) increased by 13% for each unit increase in quality-of-care after adjusting for age and comorbidities (P < 0.001). Conclusion While SCAD survivors rated their overall hospital care highly, healthcare providers' knowledge of SCAD was perceived to be poor, and the most common source of SCAD information was the internet. Mental health conditions were common, and a significant association was observed between perceived quality-of-care and SCAD survivors' quality-of-life. [ABSTRACT FROM AUTHOR]

Published
2024
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46. Sex Differences in Outcome and Prescribing Practice in ST-elevation MI Patients with Multivessel Disease and Incomplete Revascularisation

Author

Burgess, Sonya, primary, Juergens, Craig P, additional, Yang, Wesley, additional, Shugman, Ibrahim M, additional, Idris, Hanan, additional, Nguyen, Tuan, additional, McLean, Alison, additional, Zaman, Sarah, additional, Thomas, Liza, additional, Robledo, Kristy P, additional, Mussap, Christian, additional, Lo, Sidney, additional, and French, John, additional

Published
2023
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50. Quantitative flow ratio to predict long-term coronary artery bypass graft patency in patients with left main coronary artery disease

Author

Dowling, Cameron, Nelson, Adam J., Lim, Ren Yik, Zhang, Jun Michael, Cheng, Kevin, Smith, Julian A., Seneviratne, Sujith, Malaiapan, Yuvaraj, Zaman, Sarah, and Wong, Dennis T. L.

Abstract

Purpose: Fractional flow reserve (FFR) has been demonstrated in some studies to predict long-term coronary artery bypass graft (CABG) patency. Quantitative flow ratio (QFR) is an emerging technology which may predict FFR. In this study, we hypothesised that QFR would predict long-term CABG patency and that QFR would offer superior diagnostic performance to quantitative coronary angiography (QCA) and intravascular ultrasound (IVUS). Methods: A prospective study was performed on patients with left main coronary artery disease who were undergoing CABG. QFR, QCA and IVUS assessment was performed. Follow-up computed tomography coronary angiography and invasive coronary angiography was undertaken to assess graft patency. Results: A total of 22 patients, comprising of 65 vessels were included in the analysis. At a median follow-up of 3.6 years post CABG (interquartile range, 2.3 to 4.8 years), 12 grafts (18.4%) were occluded. QFR was not statistically significantly higher in occluded grafts (0.81 ± 0.19 vs. 0.69 ± 0.21; P = 0.08). QFR demonstrated a discriminatory power to predict graft occlusion (area under the receiver operating characteristic curve, 0.70; 95% confidence interval [CI], 0.52 to 0.88; P = 0.03). At long-term follow-up, the risk of graft occlusion was higher in vessels with a QFR > 0.80 (58.6% vs. 17.0%; hazard ratio, 3.89; 95% CI, 1.05 to 14.42; P = 0.03 by log-rank test). QCA (minimum lumen diameter, lesion length, diameter stenosis) and IVUS (minimum lumen area, minimum lumen diameter, diameter stenosis) parameters were not predictive of long-term graft patency. Conclusions: QFR may predict long-term graft patency in patients undergoing CABG.

Published
2024
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