Ashitha Pathrose
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View article: Potential Prognostic Value of Native T1 in Pulmonary Hypertension Patients
Potential Prognostic Value of Native T1 in Pulmonary Hypertension Patients Open
Native T1, extracellular volume fraction (ECV), and late gadolinium enhancement (LGE) characterize myocardial tissue and relate to patient prognosis in a variety of diseases, including pulmonary hypertension. The purpose of this study was …
View article: Quantitative Assessment of Regional Pulmonary Transit Times in Pulmonary Hypertension
Quantitative Assessment of Regional Pulmonary Transit Times in Pulmonary Hypertension Open
Contrast Agent Arrival Time Maps for A Representative Control and PH Patient. All Eight Analysis Regions are Shown with RPTTS Relative to T0 from MPA (RPTT). Color Coding on Images Denotes CA Arrival Time in Seconds. Example RPTT Data Show…
Left Ventricular Fibrosis Assessment by Native T1, ECV, and LGE in Pulmonary Hypertension Patients Open
Cardiac magnetic resonance imaging (MRI) is emerging as an alternative to right heart catheterization for the evaluation of pulmonary hypertension (PH) patients. The aim of this study was to compare cardiac MRI-derived left ventricle fibro…
Quantitative Assessment of Regional Pulmonary Transit Times in Pulmonary Hypertension Open
Background Pulmonary hypertension (PH) contributes to restricted flow through the pulmonary circulation characterized by elevated mean pulmonary artery pressure acquired from invasive right heart catheterization (RHC). MRI may provide a no…
Cine magnetic resonance imaging detects shorter cardiac rest periods in postcapillary pulmonary hypertension Open
Aims A shorter cardiac rest period within a cardiac cycle is usually thought to be a result of a fast heart rate, and its clinical relevance has long been ignored. The aim of the present study was to test the hypothesis that the length of …
Evaluating the Performance of Gadobutrol and Gadoterate Meglumine for Contrast-Enhanced Magnetic Resonance Angiography of the thoracic aorta at 1.5T Open
PURPOSE The purpose of this study was to systematically compare the intra-individual image quality, signal parameters, and aortic dimensions between equal doses of gadobutrol (GB) and gadoterate meglumine (GM) in patients undergoing contra…
Bicuspid Aortic Valve Morphology And Hemodynamics By Same-Day Echocardiography And Cardiac MRI Open
PURPOSE: This study investigated the impact of bicuspid aortic valve (BAV) on valve morphology and motion as well as proximal and aortic hemodynamics using a same-day echocardiography and cardiac MRI. METHODS: Transthoracic echocardiograph…
View article: Automated segmentation of biventricular contours in tissue phase mapping using deep learning
Automated segmentation of biventricular contours in tissue phase mapping using deep learning Open
Tissue phase mapping (TPM) is an MRI technique for quantification of regional biventricular myocardial velocities. Despite its potential, clinical use is limited due to the requisite labor‐intensive manual segmentation of cardiac contours …
Evaluation of Renal Allograft Vasculature Using Non-contrast 3D Inversion Recovery Balanced Steady-state Free Precession MRA and 2D Quiescent-interval Slice-selective MRA Open
QISS and 3D SSFP showed good inter-rater agreement for image quality and stenosis grade, with more cases being of adequate image quality that used QISS. Further study is required; however, NCE-MRA shows potential as a risk-free alternative…
Evaluation of image quality of wideband single‐shot late gadolinium‐enhancement MRI in patients with a cardiac implantable electronic device Open
Introduction While wideband segmented, breath‐hold late gadolinium‐enhancement (LGE) cardiovascular magnetic resonance (CMR) has been shown to suppress image artifacts associated with cardiac‐implanted electronic devices (CIEDs), it may pr…
Highly accelerated aortic 4D flow MRI using compressed sensing: Performance at different acceleration factors in patients with aortic disease Open
Purpose To systematically assess the feasibility and performance of a highly accelerated compressed sensing (CS) 4D flow MRI framework at three different acceleration factors (R) for the quantification of aortic flow dynamics and wall shea…
View article: Rapid reconstruction of highly undersampled, non‐Cartesian real‐time cine <i>k</i>‐space data using a perceptual complex neural network (PCNN)
Rapid reconstruction of highly undersampled, non‐Cartesian real‐time cine <i>k</i>‐space data using a perceptual complex neural network (PCNN) Open
Highly accelerated real‐time cine MRI using compressed sensing (CS) is a promising approach to achieve high spatio‐temporal resolution and clinically acceptable image quality in patients with arrhythmia and/or dyspnea. However, its lengthy…
Investigation of Aortic Wall Thickness, Stiffness and Flow Reversal in Patients With Cryptogenic Stroke: A <span>4D</span> Flow <span>MRI</span> Study Open
Background Stroke etiology is undetermined in approximately one‐sixth to one‐third of patients. The presence of aortic flow reversal and plaques in the descending aorta (DAo) has been identified as a potential retrograde embolic mechanism.…
Renin Angiotensin System Inhibitors Reduce Aortic Stiffness and Flow Reversal After a Cryptogenic Stroke Open
Background Blood flow reversal is a possible mechanism for retrograde embolism in the setting of high‐risk atherosclerotic plaques in the descending aorta (DAo). Evidence suggests that pulse wave velocity (PWV) is a determinant of blood fl…