Does lung perfusion scintigraphy continue to have a role in the clinical management of patients suspected of pulmonary embolism in the CT pulmonary angiography era?

Abstract:

OBJECTIVE:Acute pulmonary embolism (PE) is a life-threatening disorder with high mortality. A prompt diagnosis and treatment is essential for reducing the mortality rate. The purpose of the study is to evaluate if lung perfusion scintigraphy (LPS) continues to have a role in the clinical management of patients suspected of pulmonary embolism in the CT pulmonary angiography (CTPA) era. METHODS:For this study, 1183 patients who had been subjected to LPS were retrospectively evaluated and classified into the following groups: A (positive LPS), B (negative LPS) and C (indeterminate LPS). Patients were further classified into A1 ('PE likely' and LPS-negative), B1 (PE unlikely and LPS-positive) and C1 (PE likely and indeterminate LPS) by combining the LPS findings and the clinical pretest probability (cpp). Subgroups A1, B1 and C1 underwent additional CTPA. RESULTS:Groups A, B, and C included 1086/1183, 69/1183 and 28/1183 patients, respectively. The proportion of patients with inconsistent cpp LPS findings who underwent additional CTPA was 106/1183 patients: subgroup A1 (n = 73), B1 (n = 21), and C1 (n = 12). In subgroup A1, CTPA was negative in 61/73, non-diagnostic in 12/73 and positive in 0/73 patients. In subgroup B1, CTPA excluded PE in 2/21, non-diagnostic in 3/21 and positive in 16/21 patients. In group C1, CTPA was negative in 8/12, positive in 2/12 and non-diagnostic in 2/12 patients. CONCLUSION:In the CTPA era, LPS continues to have a role in the clinical management of patients suspected of PE.

journal_name

Ann Nucl Med

authors

Koukouraki SI,Hatzidakis AA,Mitrouska I,Stathaki MI,Perisinakis K

doi

10.1007/s12149-018-1295-3

subject

Has Abstract

pub_date

2018-12-01 00:00:00

pages

709-714

issue

10

eissn

0914-7187

issn

1864-6433

pii

10.1007/s12149-018-1295-3

journal_volume

32

pub_type

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