Document Detail

Quantitative lung perfusion scintigraphy in postoperative evaluation of congenital right ventricular outflow tract obstructive lesions.
MedLine Citation:
PMID:  8744184     Owner:  NLM     Status:  MEDLINE    
Improved methods to relieve pulmonary artery stenosis have emphasized the need for an accurate noninvasive method to quantify the pulmonary blood flow. The aim of this study was to compare the roles of Tc-99m MAA perfusion lung imaging, chest x-ray, MRI, and cine-angiography for postoperative evaluation of pulmonary blood flow in patients with congenital right ventricular outflow tract (RVOT) obstructive lesions. Eleven patients underwent chest x-ray, MRI, perfusion lung imaging, and cine-angiography after corrective surgery of RVOT obstruction. The perfusion ratio on lung scans was calculated on the posterior views. The correlation coefficient of the left to right perfusion ratio measured by lung scans obtained with that by visual assessment of chest x-rays, with the most stenotic diameter ratio on MRI and on angiography being 0.57, 0.88 (P < 0.001), and 0.87 (P < 0.001), respectively. Follow-up perfusion lung scans in seven patients, before and after pulmonary artery intervention showed significantly improved perfusion ratios (0.30 +/- 0.11 to 0.70 +/- 0.22; P < 0.001), which were concordant with the clinical findings. The authors conclude that the quantitative perfusion lung scan is the noninvasive method of choice for postoperative evaluation of the pulmonary artery in congenital RVOT obstruction.
J H Kim; D S Lee; J K Chung; M C Lee; Y W Kim; Y S Yun; K M Yeon; C S Koh
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Clinical nuclear medicine     Volume:  21     ISSN:  0363-9762     ISO Abbreviation:  Clin Nucl Med     Publication Date:  1996 Jun 
Date Detail:
Created Date:  1996-10-23     Completed Date:  1996-10-23     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7611109     Medline TA:  Clin Nucl Med     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  471-6     Citation Subset:  IM    
Department of Nuclear Medicine, Seoul National University Hospital, Korea.
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MeSH Terms
Child, Preschool
Lung / blood supply,  radionuclide imaging*
Magnetic Resonance Imaging
Pulmonary Artery / radiography
Pulmonary Circulation*
Technetium Tc 99m Aggregated Albumin / diagnostic use
Ventricular Outflow Obstruction / congenital,  diagnosis,  radionuclide imaging*,  surgery
Reg. No./Substance:
0/Technetium Tc 99m Aggregated Albumin

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