Abstract
PURPOSE: We report a case with initial misinterpretation of the radionuclide angiocardiographic study that was obtained in a child with persistent tachypnea and concern for residual left to right shunt after prior repair of total anomalous pulmonary veins and an atrial septal defect. MATERIALS AND METHODS: Ultrasound, radionuclide angiocardiogram, and magnetic resonance imaging studies were obtained. RESULTS: The radionuclide study was ordered after an unremarkable ultrasound. Unsuspected severely reduced left pulmonary arterial flow associated with high-grade ipsilateral pulmonary venous obstruction led to misinterpretation of the radionuclide study as a large residual shunt. Later replotting of the graphic data using each lung separately corrected the error. Magnetic resonance played a key role in making the correct diagnosis. CONCLUSIONS: Significant asymmetric pulmonary flow due to vascular obstruction is an important additional potential pitfall to recognize in interpreting radionuclide angiocardiographic studies.
Original language | English (US) |
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Pages (from-to) | 521-524 |
Number of pages | 4 |
Journal | Clinical Nuclear Medicine |
Volume | 33 |
Issue number | 8 |
DOIs | |
State | Published - Aug 2008 |
Externally published | Yes |
Keywords
- MR
- Pulmonary vein obstruction
- Radionuclide angiocardiogram
ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging