Demonstration of double-chambered right ventricle on myocardial perfusion SPECT.
A 19-year-old man with a double-chambered right ventricle (DCRV) and an associated ventricular septal defect was admitted to the hospital for surgical correction. Preoperative study of myocardial perfusion with Tc-99m tetrofosmin SPECT depicted the two chambers of the right ventricle. There was a substantial differential in the radioactive uptake between these two chambers. The inflow and outflow chambers with different peak-pressures (94 and 18 mm Hg) showed different uptakes reflecting the pressure difference, which was intense in the inflow chamber and weak in the outflow.
Shuke
N
N
Department of Radiology, Asahikawa Medical College, Japan.
Sugiki
K
K
Ajiki
H
H
Honma
H
H
Yoshida
N
N
Aburano
T
T
Ohno
T
T
D000328:Adult; D006345:Heart Septal Defects, Ventricular / Q000000981:diagnostic imaging; D006352:Heart Ventricles / Q000002:abnormalities* / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D009943:Organophosphorus Compounds; D015609:Organotechnetium Compounds; D019275:Radiopharmaceuticals; D015899:Tomography, Emission-Computed, Single-Photon
D009943:Organophosphorus Compounds; D015609:Organotechnetium Compounds; D019275:Radiopharmaceuticals; C078700:technetium tc-99m tetrofosmin