Search

Your search keyword '"Breath holds"' showing total 2 results
Start Over Descriptor "Breath holds" Publisher biomed central
2 results on '"Breath holds"'

1. Improved accelerated breath-hold radial cine image reconstruction by acquiring additional free-breathing data between breath-holds

Author

Kraig V. Kissinger, Vahid Tarokh, Yongjun Kwak, Seunghoon Nam, Reza Nezafat, Beth Goddu, Warren J. Manning, and Mehmet Akcakaya

Subjects
Medicine(all), medicine.medical_specialty, lcsh:Diseases of the circulatory (Cardiovascular) system, Radiological and Ultrasound Technology, Cine image, business.industry, Breath holds, 030218 nuclear medicine & medical imaging, Scan time, 03 medical and health sciences, 0302 clinical medicine, Data acquisition, lcsh:RC666-701, Poster Presentation, medicine, Radiology, Nuclear Medicine and imaging, Cardiology and Cardiovascular Medicine, Nuclear medicine, business, Free breathing, Angiology
Abstract

Background Evaluation of cardiac function is clinically performed using multi-slice breath-hold (BH) acquisition, in which patient breathes for a period of 40-60 seconds between a BH of 10-12 seconds. This results in suboptimal data acquisition efficiency. In this study, we propose to take advantage of the time between multiple BHs to acquire additional free-breathing (FB) data that can be used in the reconstruction of undersampled BH acquisition without increasing the total scan time.

Published
2012

2. Free-breathing myocardial T2 measurements at 1.5T

Author

Damien Mandry, Maelene Lohezic, Jacques Felblinger, Jean-Marie Escanye, Pierre-Yves Marie, Anne Menini, Pierre-André Vuissoz, Imagerie Adaptative Diagnostique et Interventionnelle (IADI), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lorraine (UL), Cristallographie, Résonance Magnétique et Modélisations (CRM2), Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Service de Médecine Nucléaire [Nancy], Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy), BMC, Ed., and Centre National de la Recherche Scientifique (CNRS)-Université de Lorraine (UL)

Subjects
lcsh:Diseases of the circulatory (Cardiovascular) system, medicine.medical_specialty, Pathology, [SDV.IB.IMA]Life Sciences [q-bio]/Bioengineering/Imaging, T2 mapping, Black blood, 030204 cardiovascular system & hematology, 030218 nuclear medicine & medical imaging, 03 medical and health sciences, 0302 clinical medicine, [SDV.MHEP.CSC]Life Sciences [q-bio]/Human health and pathology/Cardiology and cardiovascular system, Internal medicine, medicine, Radiology, Nuclear Medicine and imaging, ComputingMilieux_MISCELLANEOUS, Angiology, Medicine(all), Radiological and Ultrasound Technology, business.industry, Echo (computing), Tissue characterization, Fast spin echo, Breath holds, [SDV.MHEP.CSC] Life Sciences [q-bio]/Human health and pathology/Cardiology and cardiovascular system, [SDV.IB.IMA] Life Sciences [q-bio]/Bioengineering/Imaging, lcsh:RC666-701, Poster Presentation, Cardiology, ComputingMethodologies_GENERAL, Cardiology and Cardiovascular Medicine, business, Free breathing
Abstract

Myocardial T2 mapping is a valuable tool for tissue characterization and oedema visualization. For instance, it is used to detect early rejection of heart transplant [1]. T2 values are usually estimated by performing several black blood Fast Spin Echo (FSE) sequences with different Echo Times (TE), what requires multiple breath holds. Successive apneas could lead to misregistration between images and to patient discomfort. A method allowing free breathing myocardial T2 measurements has been recently proposed and evaluated at 3T [2]. Results at 1.5T are presented here.

Published
2011

Catalog

Books, media, physical & digital resources
See catalog results