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2018 ; 8
(3
): 225-243
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Imaging of acute pulmonary embolism: an update
#MMPMID30057872
Moore AJE
; Wachsmann J
; Chamarthy MR
; Panjikaran L
; Tanabe Y
; Rajiah P
Cardiovasc Diagn Ther
2018[Jun]; 8
(3
): 225-243
PMID30057872
show ga
Imaging plays an important role in the evaluation and management of acute
pulmonary embolism (PE). Computed tomography (CT) pulmonary angiography (CTPA) is
the current standard of care and provides accurate diagnosis with rapid
turnaround time. CT also provides information on other potential causes of acute
chest pain. With dual-energy CT, lung perfusion abnormalities can also be
detected and quantified. Chest radiograph has limited utility, occasionally
showing findings of PE or infarction, but is useful in evaluating other potential
causes of chest pain. Ventilation-perfusion (VQ) scan demonstrates
ventilation-perfusion mismatches in these patients, with several classification
schemes, typically ranging from normal to high. Magnetic resonance imaging (MRI)
also provides accurate diagnosis, but is available in only specialized centers
and requires higher levels of expertise. Catheter pulmonary angiography is no
longer used for diagnosis and is used only for interventional management.
Echocardiography is used for risk stratification of these patients. In this
article, we review the role of imaging in the evaluation of acute PE.
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