Open AccessPerfusion Scintigraphy in Diagnosis and Management of Thromboembolic Pulmonary Hypertension
Author(s) -
Farshad Moradi,
Timothy A. Morris,
Carl K. Hoh
Publication year - 2019
Publication title -
radiographics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.866
H-Index - 172
eISSN - 1527-1323
pISSN - 0271-5333
DOI - 10.1148/rg.2019180074
Subject(s) - medicine , scintigraphy , pulmonary embolism , chronic thromboembolic pulmonary hypertension , perfusion , pulmonary hypertension , pulmonary angiography , radiology , complication , cardiology , lung , angiography , perfusion scanning
Chronic thromboembolic pulmonary hypertension (CTEPH) is a life-threatening complication of acute pulmonary embolism (PE). Because the treatment of CTEPH is markedly different from that of other types of pulmonary hypertension, lung ventilation-perfusion (V/Q) scintigraphy is recommended for the workup of patients with unexplained pulmonary hypertension. Lung V/Q scintigraphy is superior to CT pulmonary angiography for detecting CTEPH. Perfusion defect findings of CTEPH can be different from those of acute PE. Familiarity with the patterns of perfusion defects seen during the initial workup of CTEPH and the expected posttreatment changes seen at follow-up imaging is essential for accurate interpretation of V/Q scintigraphy findings. © RSNA, 2019.