| Japanese |
|---|
| Title | 先天性心疾患におけるマルチゲート心血液プール・データのフーリエ解析による検討 - (II) ファロー四徴症を中心とした複雑心奇型の診断 - |
|---|
| Subtitle | 原著 |
|---|
| Authors | 竹田寛*, 前田寿登*, 山口信夫*, 中村和義*, 松村要*, 中川毅*, 桜井実**, 青木謙三** |
|---|
| Authors(kana) | |
|---|
| Organization | *三重大学医学部放射線科, **小児科 |
|---|
| Journal | 核医学 |
|---|
| Volume | 22 |
|---|
| Number | 4 |
|---|
| Page | 501-509 |
|---|
| Year/Month | 1985/4 |
|---|
| Article | 原著 |
|---|
| Publisher | 日本核医学会 |
|---|
| Abstract | 「要旨」ファロー四徴症 (TOF) を中心とした複雑心奇型を対象に, マルチゲート法による心血液プール・データをフーリエ解析し, その臨床的有用性を検討した. 各画素および左右心室全体の時間放射能曲線をフーリエ解析し, 一次項の位相角と振幅を算出し, 左右心室の位相角差 [D (pahse) ] , 左室振幅に対する右室振幅の比 [R (amp) ] を求めた. TOF群 (10例) におけるD (phase) , R (amp) の各平均値は, それぞれ, 25.3±10.5度, 1.35±0.49で, いずれも正常群 (18例) に較べ有意の増大を示し, また, D (phase) 値は肺循環対体循環血流比に対し負の相関 (r=-0.830, P<0.01) を示した. 各画素ごとの位相角, 振幅値によるファンクショナル・イメージでは, 両大血管右室起始症や三尖弁閉鎖症における低形成側の心室の機能評価や, エブスタイン奇型における "心房化右室" など, 同一心室内の限局性異常運動領域の描出に有用であった. |
|---|
| Practice | 臨床医学：一般 |
|---|
| Keywords | Multi-gated cardiac blood-pool data, Fourier analysis, Congenital heart disease, Complex cardiac anomaly |
|---|
| English |
|---|
| Title | Fourier Analysis of Multi-Gated Cardiac Blood-Pool Data in Patients with Congenital Heart Diseases - [II] Assessment of Diseases with Complex Cardiac Anomalies, Especially Tetralogy of Fallot - |
|---|
| Subtitle | |
|---|
| Authors | Kan TAKEDA*, Hisato MAEDA*, Nobuo YAMAGUCHI*, Kazuyoshi NAKAMURA*, Kaname MATSUMURA*, Tsuyoshi NAKAGAWA*, Minoru SAKURAI**, Kenzo AOKI** |
|---|
| Authors(kana) | |
|---|
| Organization | *Department of Radiology, **Department of Pediatrics, Mie University School of Medicine |
|---|
| Journal | The Japanese Journal of nuclear medicine |
|---|
| Volume | 22 |
|---|
| Number | 4 |
|---|
| Page | 501-509 |
|---|
| Year/Month | 1985/4 |
|---|
| Article | Original article |
|---|
| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
|---|
| Abstract | [Summary] The clinical usefulness of Fourier analysis of multi-gated cardiac blood-pool data was evaluated in 18 subjects with normal cardiac functions and 14 patients with complex cardiac anomalies (ten with tetralogy of Fallot, two with tricuspid atresia (TA) , one with double-outlet right ventricle (DORV) , and one with Ebstein's anomaly (EA) ) . Using global ventricular time-activity curves, the phase and amplitude at fundamental frequency were calculated, and emptying patterns of the left and right ventricles (LV, RV) were evaluated by phase difference [D (phase) =RV phase minus LV phase] and amplitude ratio of RV to LV [R (amp) ] . In patients with TOF, mean values of D (phase) and R (amp) were 25.3+-10.5 degrees and 13.5+-0.49 respectively and significantly larger than those of normal subjects (p<0.001) . D (phase) became larger in inverse proportion to the ratio of pulmonary-to-systemic blood flow and there was an inverse linear correlation between these two variables (r=-0.830, p<0.01) . On visual interpretation of functional images, the dynamic property of hypoplastic ventricles could be easily estimated in patients with TA or DORV. In a case with EA, the atrialized RV was shown clearly as a hypokinetic, atrial phase area. This method is valuable for pathophysiologic investigation of diseases with complex cardiac anomalies. |
|---|
| Practice | Clinical medicine |
|---|
| Keywords | Multi-gated cardiac blood-pool data, Fourier analysis, Congenital heart disease, Complex cardiac anomaly |
|---|