TY - JOUR
T1 - Deep Vein Thrombosis Presenting on Pulmonary Ventilation and Perfusion Scintigraphy
AU - Itani, Malak
AU - Fair, Joanna
AU - Hillman, Zachary
AU - Behnia, Fatemeh
AU - Elojeimy, Saeed
N1 - Publisher Copyright:
Copyright © 2016 Wolters Kluwer Health, Inc. All rights reserved.
PY - 2016/10/1
Y1 - 2016/10/1
N2 - A 52-year-old woman presenting with dyspnea was referred for a ventilation and perfusion scan (VQ). VQ images (with Tc-DTPA [diethylene triamine pentaacetic acid aerosol] and Tc-MAA [macroaggregated albumin]) initially appeared normal; however, count rates on perfusion images were similar to ventilation images, implying little Tc-MAA had reached the lungs. Spot images of the injected extremity demonstrated focal Tc-MAA accumulation worrisome for a venous thrombus, subsequently confirmed by Doppler ultrasound. Careful attention to relative radiotracer count rates on VQ scans is crucial to ensure diagnostic utility. In addition, abnormal low perfusion radiotracer counts may unveil other pathology with important clinical implications.
AB - A 52-year-old woman presenting with dyspnea was referred for a ventilation and perfusion scan (VQ). VQ images (with Tc-DTPA [diethylene triamine pentaacetic acid aerosol] and Tc-MAA [macroaggregated albumin]) initially appeared normal; however, count rates on perfusion images were similar to ventilation images, implying little Tc-MAA had reached the lungs. Spot images of the injected extremity demonstrated focal Tc-MAA accumulation worrisome for a venous thrombus, subsequently confirmed by Doppler ultrasound. Careful attention to relative radiotracer count rates on VQ scans is crucial to ensure diagnostic utility. In addition, abnormal low perfusion radiotracer counts may unveil other pathology with important clinical implications.
UR - http://www.scopus.com/inward/record.url?scp=84983268227&partnerID=8YFLogxK
U2 - 10.1097/RLU.0000000000001337
DO - 10.1097/RLU.0000000000001337
M3 - Article
C2 - 27556796
AN - SCOPUS:84983268227
SN - 0363-9762
VL - 41
SP - e462-e464
JO - Clinical nuclear medicine
JF - Clinical nuclear medicine
IS - 10
ER -