원저 : ECG Gated Blood Pool Scan을 이용한 심실벽 역행성 운동의 평가 - Cine Loop , Phase analysis , Paradox Image의 비교 - ( Identification and Assessment of Paradoxical Ventricular Wall Motion Using ECG Gated Blood Pool Scan - Comparison of cine Loop , Ph () |
Author |
이재태(Jae Tae Lee),김광원(Gwang Weon Kim),정병천,이규보(Kyu Bo Lee),황기석(Kee Suk Whang),채성철(Sung Chul Chae),전재은,박의현(Wee Hyun Park),이형우(Hyong Woo Lee),정진홍(Jin Hong Chung), |
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Abstract |
Sixty-four patients with paradoxical ventricular wall
motion noticed both in angiocardiography or 2-
dimensional echocardiography were assessed by ECG gated
blood pool scan (GBPS). Endless cine loop image, phase
and amplitude images and paradox image obtained by
visual inspection of each cardiac beat or Fourier
transformation of acquired raw data were investigated
to determine the incremental value of GBPS with these
processing methods for identification of paradoxical
ventricular wall motion. The results were as follows:1)
Paradoxical wall motions were observed on
interventricular septum in 34 cases, left ventricular
free wall in 26and right ventricular wall in 24.
Underlying heart diseases were is chemic (23 cases)
valvular(9), congenita1 heart disease (12),
cardiomyopathy (5). pericardial effusion(5), post
cardiac surgery(3), cor pulmonale (2), endocarditis (l)
and right ventricular tumor(l). 2) Left ventricular
ejection fractions of patients with paradoxical left
ventricular wall motion were significantly lower than
those with paradoxical septal motion (p〈0.005). 3) The
sensitivity of each processing methods for detecting
paradoxical wall motion was 76.9% by phase analysis,
74.6% by endless cine loop mapping and 68.4% by paradox
image manipultion respectively. Paradoxial motions
visualized only in phase, paradox or both images were
appeared as hypokinesia or akinesia in cine loop image.
4) All events could be identified by at least one of
above three processing methods, however only 34 cases
(48.4%) showed the paradoxical motions in all of the
three images. By these findings, we concluded that
simultaneous inspection of all above three processing
methods-endless cine loop, phase analysis and paradox
image is necessary for accurate identification and
assessment of paradoxical ventricular wall motion when
performing GBPS. |
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Full text Article |
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