A5078972402- Cardiac Imaging and Diagnostics
- Advanced MRI Techniques and Applications
- Cardiovascular Function and Risk Factors
- Advanced X-ray and CT Imaging
- Cardiac Valve Diseases and Treatments
- Innovations in Medical Education
- Radiation Dose and Imaging
- Medical Imaging Techniques and Applications
- MRI in cancer diagnosis
- Digital Radiography and Breast Imaging
- Cardiac, Anesthesia and Surgical Outcomes
- Cardiac Structural Anomalies and Repair
- Breast Lesions and Carcinomas
- Clinical Reasoning and Diagnostic Skills
- Cardiac tumors and thrombi
- Anatomy and Medical Technology
- Radiology practices and education
- Aortic aneurysm repair treatments
- Breast Cancer Treatment Studies
- Infective Endocarditis Diagnosis and Management
- Advanced Data Processing Techniques
- AI in cancer detection
- Real-time simulation and control systems
- Cardiomyopathy and Myosin Studies
- Thermal Expansion and Ionic Conductivity
University of Malaya
2015-2024
American College of Radiology
2016
Creative Commons
2016
Christie's
2016
Universiti Sains Malaysia
2015
University Malaya Medical Centre
2012-2013
Mayo Clinic in Arizona
2002
Background Left ventricle (LV) structure and functions are the primary assessment performed in most clinical cardiac MRI protocols. Fully automated LV segmentation might improve efficiency reproducibility of assessment. Purpose To develop validate a fully neural network regression‐based algorithm for MRI, with full coverage from apex to base across all phases, utilizing both short axis (SA) long (LA) scans. Study Type Cross‐sectional survey; diagnostic accuracy. Subjects In all, 200 subjects...
Abstract: Current visualization techniques of complex congenital heart disease (CHD) are unable to provide comprehensive the anomalous cardiac anatomy as medical datasets can essentially only be viewed from a flat, two-dimensional (2D) screen. Three-dimensional (3D) printing has therefore been used replicate patient-specific hearts in 3D views based on imaging datasets. This technique shown have positive impact preoperative planning corrective surgery, patient-doctor communication, and...
The purpose of this study was to investigate the diagnostic efficacy shearwave elastography (SWE) in differentiating between benign and malignant breast lesions. One hundred fifty-nine lesions were assessed using B-mode ultrasound (US) SWE parameters recorded (Emax, Emean, Emin, Eratio, SD). measurements then correlated with histopathological diagnosis. final sample contained 85 74 maximum stiffness (Emax) a cutoff point ≥ 56.0 kPa (based on ROC curves) provided sensitivity 100.0%,...
IntroductionThe purpose of this study was to compare students' performance in the different clinical skills (CSs) assessed objective structured examination.MethodsData for were obtained from final year medical exit examination (n=185). Retrospective analysis data conducted using SPSS. Means six CSs across 16 stations computed and compared.ResultsMeans history taking, physical examination, communication skills, reasoning (CRSs), procedural (PSs), professionalism 6.25±1.29, 6.39±1.36,...
Cine MRI is a clinical reference standard for the quantitative assessment of cardiac function, but reproducibility confounded by motion artefacts. We explore feasibility corrected 3D left ventricle (LV) quantification method, incorporating multislice image registration into model reconstruction, to improve LV functional quantification. Multi-breath-hold short-axis and radial long-axis images were acquired from 10 patients healthy subjects. The proposed framework reduced misalignment between...
To investigate: (1) the variability of mammographic compression parameters amongst Asian women; and (2) effects reducing force on image quality mean glandular dose (MGD) in women based phantom study.We retrospectively collected 15818 raw digital mammograms from 3772 aged 35-80 years who underwent screening or diagnostic mammography between Jan 2012 Dec 2014 at our center. The were processed using a volumetric breast density (VBD) measurement software (Volpara) to assess force, pressure,...
High delivery rate is an important factor in optimizing contrast medium administration coronary computed tomography angiography (CCTA). A personalized volume calculation algorithm incorporating high iodine (IDR) can reduce total dose (TID) and produce optimal vessel enhancement (VCE) low tube voltage CCTA. In this study, we developed validated for calculating the of delivered at a patients undergoing retrospectively ECG-gated CCTA with protocol.The IDR 2.22 gI·s-1 was based on relationship...
Presence of air in the kidney can be problematic as location different parts greatly affects subsequent management and outcome patient. We present here a case patient who had emphysematous pyelitis, which CT scan was able to display presence only collecting system, thus differentiating this condition from more fulminant pyelonephritis. This leads favourable prognosis
A segmental two-parameter empirical deformable model is proposed for evaluating regional motion abnormality of the left ventricle. Short-axis tagged MRI scans were acquired from 10 healthy subjects and postinfarct patients. Two parameters, contraction rotation, quantified each cardiac segment by fitting using a non-rigid registration algorithm. The accuracy in estimation was compared to global approach. Motion parameters extracted patients correlated infarct transmurality assessed with...
Rapid prototyping is a process by which three-dimensional (3D) computerized surface models are converted into physical models. In this study, 3D heart bio model was created using the rapid method and accuracy of assessed clinicians.The two-dimensional images normal from gated computed tomography scan datasets were used to create heart. The slices then processed software BioModroid printed with printer. evaluation performed questionnaire answered four cardiothoracic surgeons, 12...
Objectives This study aimed to measure the absorbed doses in selected organs for prospectively ECG-triggered coronary computed tomography angiography (CCTA) using five different generations CT scanners a female adult anthropomorphic phantom and estimate effective dose (HE). Materials Methods Prospectively CCTA was performed commercially available scanners: 64-detector-row single source (SSCT), 2 × 32-detector-row-dual (DSCT), DSCT 320-detector-row SSCT scanners. Absorbed were measured 34...
At present, physicians have a limited ability to predict major cardiovascular complications after non-cardiac surgery and little is known about the anatomy of coronary arteries associated with perioperative myocardial infarction. We initiated Coronary CT Angiography (CTA) VISION Study (1) establish predictive value CTA for infarction death (2) describe patients that infarction.The prospective observational study. Preoperative will be performed in 1000-1500 history vascular disease or at...
To evaluate a 2D-4D registration-cum-segmentation framework for the delineation of left ventricle (LV) in late gadolinium enhanced (LGE) MRI and localization infarcts patient-specific 3D LV models.A 3-step was proposed, consisting of: (1) model reconstruction from motion-corrected 4D cine-MRI; (2) Registration 2D LGE-MRI with (3) contour extraction intersection LGE slices model. The evaluated against cardiac data 27 patients scanned within 6 months after acute myocardial infarction. We...
Abstract Background In recent years, there have been many instances of negative sentiments expressed by and resignations observed from doctors working in the Ministry Health (MOH), Malaysia. However, little is known about perspectives medical students their career intentions. This study aims to determine current Malaysian students’ intentions immediately after graduation upon completing 2 years housemanship establish factors influencing these Methods was a cross-sectional 859 21 schools who...
Effective and engaging learning experiences are crucial in dental education, especially the field of materials science, as previous approaches were largely through didactic teaching. Interactive online modules have emerged valuable supplemental tools to enhance education. It offers interactive elements, promotes active learning, provides an immersive, self-paced environment. This article highlights use Gagne’s Nine Events Instruction a practical framework design implement science curriculum....
To investigate the sensitivity and robustness of a volumetric breast density (VBD) measurement system to errors in imaging physics parameters including compressed thickness (CBT), tube voltage (kVp), filter thickness, current-exposure time product (mAs), detector gain, offset image noise.3317 raw digital mammograms were processed with Volpara(®) (Matakina Technology Ltd, Wellington, New Zealand) obtain fibroglandular tissue volume (FGV), (BV) VBD. Errors CBT, kVp, mAs simulated by varying...
Dilated cardiomyopathy (DCM) is the most common myocardial disease. It not only leads to systolic dysfunction but also diastolic deficiency. We sought investigate effect of idiopathic and ischemic DCM on intraventricular fluid dynamics wall mechanics using a 2D axisymmetrical structure interaction model. In addition, we studied individual parameters related DCM, i.e. peak E-wave velocity, end volume, compliance sphericity index several important variables during ventricular filling....
Neck abscesses are difficult to diagnose and treat. Currently, contrast-enhanced computed tomography (CECT) is the imaging modality of choice. The study aims determine predictive value CECT findings in diagnosing neck abscess, causes abscess most common space involved local population. 84 consecutive patients clinically suspected have who underwent surgical confirmation pus were included. Demographic clinical data recorded. 75 diagnosed as having on CECT; out those 71 found pus. Overall a...
The application of magnetic resonance imaging (MRI) in evaluating the heart and its plethora diseases has grown over years. Abundant research advancements this modality had been made, largely due to perceived benefits MRI. These accepted advantages MRI include absence ionizing radiation, reproducible technique does not require iodine-based contrast media. It even touted as 'one-stop shop' for cardiac imaging. Cardiac (CMR) ability assess comprehensively, examining morphology, ventricular...