| Japanese |
|---|
| Title | 心電図同期MRIによる心疾患の診断 - 0.35Tおよび1.5Tにおける臨床応用 - |
|---|
| Subtitle | 原著 |
|---|
| Authors | 西村恒彦*, 内藤博昭*, 山田幸典*, 小塚隆弘* |
|---|
| Authors(kana) | |
|---|
| Organization | *国立循環器病センター放診部 |
|---|
| Journal | 核医学 |
|---|
| Volume | 22 |
|---|
| Number | 11 |
|---|
| Page | 1641-1652 |
|---|
| Year/Month | 1985/11 |
|---|
| Article | 原著 |
|---|
| Publisher | 日本核医学会 |
|---|
| Abstract | 「要旨」 心臓領域におけるMRI診断は, 心電図同期法の導入により, 非同期に比し, 鮮明な画像が得られる. また, 本法は, 心臓の収縮拡張状態や多方向撮像により立体的な形態機能診断が行えた. 正常6例にて0.35Tと1.5Tの両静磁場で行ったイメージングでは, 後者の方が比がS/N高いため優れていた. しかし心臓は動的臓器であるため, 2〜4回のアベレージングが必要であった. 臨床応用は21例を対象とした. 心筋梗塞, 肥大型心筋症などにおける心筋の菲薄化, 壁肥厚の程度が, また梗塞部位の収縮不全の状態がとらえられた. その他の心疾患でも血流が信号を出さないことを利用することにより, 各疾患群に特徴的な所見が得られた. また, 大血管系疾患である大動脈瘤や大動脈炎でも心電図同期MRIが有用であった. |
|---|
| Practice | 臨床医学：一般 |
|---|
| Keywords | Gated MRI, Cardiovascular disease |
|---|
| English |
|---|
| Title | Clinical Evaluation of Cardiovascular Disease by Gated-MRI (Magnetic Resonance Imaging) in the Operating Field of 0.35 and 1.5 Tesla |
|---|
| Subtitle | |
|---|
| Authors | Tsunehiko NISHIMURA, Hiroaki NAITO, Yukinori YAMADA, Takahiro KOZUKA |
|---|
| Authors(kana) | |
|---|
| Organization | Department of Radiology, National Cardiovascular Center |
|---|
| Journal | The Japanese Journal of nuclear medicine |
|---|
| Volume | 22 |
|---|
| Number | 11 |
|---|
| Page | 1641-1652 |
|---|
| Year/Month | 1985/11 |
|---|
| Article | Original article |
|---|
| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
|---|
| Abstract | [Summary] To evaluate the clinical usefulness of magnetic resonance imaging (MRI) in the cardiovascular disease, 21 patients were examined using 0.35 and 1.5 Tesla superconductive type (Magnetom, Siemens) . In our study, all patients were performed using ECG-gated MRI. Therefore, the cardiac chambers were discriminated clearly from the myocardial wall compared to non-gated MRI. Gated-MRI was performed in 6 normal persons in the operating field at 0.35 and 1.5 Tesla. The image of the latter showed superior than that of the former because of high S/N ratio. In myocardial infarction, infarct area was demonstrated as the wall thinning in 4 of 5 patients. Hypertrophic cardiomyopathy showed thickened left ventricle associated with its narrowed cavity in 7 patients. In the remaining such as congenital and valvular heart disease, global and regional cardiac morphology were assessed noninvasively by gated MRI. In addition, gated MRI was also applied to the diagnosis of peripheral vascular diseases. In dissecting aneurysm, double channels with an intimal flap in the aorta were clearly visualized. And in the aortitis syndrome, aortic dilatation and stenosis were also assessed noninvasively. In conclusion, gated MRI in diagnosing various abnormalities of cardiovascular disease was confirmed. |
|---|
| Practice | Clinical medicine |
|---|
| Keywords | Gated MRI, Cardiovascular disease |
|---|