By Jeroen J. Bax, Christopher M. Kramer, Thomas H. Marwick, William Wijns
;Cardiovascular Imaging: A guide for medical perform КНИГИ ;ЗДОРОВЬЕ Название: Cardiovascular Imaging: A guide for scientific perform // Методы визуализации ССС Автор: Jeroen J. Bax (Editor), Christopher M. Kramer (Editor), Thomas H. Marwick (Editor), William Wijns (Editor) Издательство: Wiley-Blackwell Год: 2005 Формат: PDF Размер: 4.80 Mб Качество: ХорошееКнига основана на применении неинвазивных методик визуализации в клинической кардиологии. Основной посыл заключается в использовании различных диагностических комплексов, основанных на методах визуализации, в обычной практике врача-кардиолога. Затронуты многие проблемы патологии сердца, такие как болезни клапанного аппарата, ИБС, болезни миокарда и перикарда и их диагностика с помощью эхокардиографии, компьютерной томографии и магнитно-резонансной томографии.Скачать c turbobit.net Скачать c uploading.com Скачать c .com zero
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Extra info for Cardiovascular Imaging: A Handbook for Clinical Practice
Increase in the end-systolic left ventricular dimension signals contractile impairment. 11 2 Left atrial enlargement: more than mild chronic regurgitation leads to left atrial enlargement. In chronic severe MR, atrial fibrillation inevitably ensues, further promoting left atrial dilatation. The anteroposterior systolic diameter classically measured by M-mode is a relatively insensitive measure of left atrial enlargement. Left atrial enlargement is best assessed by planimetry of the left atrium in the four-chamber view.
Atrial fibrillation substantially degrades image quality. Morphologic abnormalities of the leaflets can be detected, as well as high-velocity regurgitant jets. 5 Left ventricular volumes and ejection fraction are assessed very accurately by MRI. Moreover, MRI can potentially provide much supplemental information in one examination, such as data on the presence and extent of myocardial scar, regional perfusion, and non-invasive coronary angiography (which, although currently rudimentary, is steadily improving).
6 Management strategy of aortic regurgitation (AR): a stepwise approach using imaging (see text). AV, aortic valve; CMRI, cardiac magnetic resonance imaging; CT, computed tomography; LV, left ventricle; LVEDD, left ventricular end-diastolic diameter; LVEF, left ventricular ejection fraction; LVESD, left ventricular end-systolic diameter; LVESI, left ventricular end-systolic index; LVF, left ventricular function. 6/18/05 46 11:13 AM Page 46 Chapter 4 As soon as AR is detected by physical examination and/or Doppler echocardiography the next step is to assess its severity.