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Title ECG gated NMR-CT for cardiovascular diseases
Creator/Author Nishikawa, J. ; Ohtake, T. ; Machida, K. ; Iio, M. ; Yoshimoto, N. ; Sugimoto, T.
Publication Date1985 May 01
OSTI IdentifierOSTI ID: 6792750
Report Number(s)CONF-850611-
Other Number(s)CODEN: JNMEA
Resource TypeConference
Specific TypeJournal Article
Resource RelationJ. Nucl. Med. ; Vol/Issue: 26:5; 32. annual meeting of the Society of Nuclear Medicine; 2 Jun 1985; Houston, TX, USA
Research OrgTokyo Univ. Hospital, Tokyo
Subject550602 -- Medicine-- External Radiation in Diagnostics-- (1980-) ;550900 -- Pathology; HEART-- CAT SCANNING;HEART-- NMR IMAGING;MYOCARDIAL INFARCTION-- DIAGNOSIS; CARDIOVASCULAR DISEASES;CARDIOVASCULAR SYSTEM;MOTION;MYOCARDIUM;PATHOLOGY;RELAXATION TIME
Related SubjectBODY;CARDIOVASCULAR DISEASES;CARDIOVASCULAR SYSTEM;COMPUTERIZED TOMOGRAPHY;DIAGNOSTIC TECHNIQUES;DISEASES;HEART;MUSCLES;ORGANS;TOMOGRAPHY
Description/Abstract The authors have been applying ECG gated NMR-CT to mainly patients with myocardial infarction (MI), and hypertrophic cardiomyopathy (HCM).^Thirteen patients with MI, 8 with HCM and 5 without any heart diseases were studied by ECG gated NMR imaging (spin-echo technique, TR: depends on patient heart rate, TE: 35 and 70 msec.) with 0.35 T superconducting magnet.^On NMR images (MRI), the authors examined the wall thickness, wall motion and T/sub 2/ relaxation time in the area of diseased myocardium.^The lesions of old MI were depicted as the area of thin wall and T/sub 2/ relaxation time of those lesions were similar to the area of non-infarcted myocardium.^The lesions of recent MI (up to 3.5 months from the recent attack) were shown as the same wall thickness as the non-infarcted myocardium and the area of prolonged T/sub 2/ relaxation time compared with that of non-infarcted myocardium.^MRI demonstrated diffusely thick myocardium in all patients with HCM.^T/sub 2/ relaxation time of the areas of HCM was almost the same as that of normal myocardium, and it`s difference among each ventricular wall in patients with HCM was not statistically significant.^The authors conclude that ECG gated NMR-CT offers 3-D morphological information of the heart without any contrast material nor radioisotopes.^ECG gated MRI provides the useful informations to diagnose MI, especially in the differential diagnosis between old and recent MI.
Country of PublicationUnited States
LanguageEnglish
FormatPages: 7
System Entry Date2001 May 13

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