Deep Vein Thrombosis Presenting on Pulmonary Ventilation and Perfusion Scintigraphy

Malak Itani, Joanna Fair, Zachary Hillman, Fatemeh Behnia, Saeed Elojeimy

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


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.

Original languageEnglish
Pages (from-to)e462-e464
JournalClinical nuclear medicine
Issue number10
StatePublished - Oct 1 2016


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