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Can Assoc Radiol J. 2015 Feb;66(1):24-9. doi: 10.1016/j.carj.2014.11.006.

Frequency of nonthromboembolic imaging abnormalities in pregnant women referred for computed tomography pulmonary arteriography.

Author information

1
David Geffen School of Medicine at UCLA, Diagnostic Cardiovascular Imaging, Los Angeles, California, USA.
2
Department of Radiology, Mater Misericordiae University Hospital, Dublin, Ireland. Electronic address: pmacmahon@mater.ie.
3
Department of Obstetrics and Gynaecology, The Rotunda Hospital, Dublin, Ireland.
4
School of Public Health and Population Science, University College Dublin, Dublin, Ireland.
5
Department of Radiology, Mater Misericordiae University Hospital, Dublin, Ireland.

Abstract

PURPOSE:

The study sought to determine the frequency of nonthromboembolic imaging abnormalities in pregnant women referred for computed tomography pulmonary arteriography (CTPA).

MATERIALS AND METHODS:

CTPA studies on 100 consecutive pregnant women performed over a 5-year period were reviewed independently by 2 radiologists, with conflicts resolved by consensus. Age range was 18-43 years (mean 28 years). The presence or absence of pulmonary embolism and of nonthromboembolic imaging abnormalities was recorded. These were graded as A if the abnormalities were thought to provide potential alternative explanations for acute symptoms, B if findings were incidental that required clinical or radiologic follow-up, and C if the findings did not require further action.

RESULTS:

Pulmonary embolism was seen in 5 women. In 2 of these additional findings of consolidation and infarction were seen. Ninety-five women did not have pulmonary embolism. Eleven women (12%) had grade A abnormalities; 6 cases of consolidation, 2 cases of lobar collapse, and 3 cases of heart failure with pleural effusions. One woman had a grade B abnormality due to the presence of pulmonary nodules. Ten women had incidental grade C abnormalities.

CONCLUSION:

Pulmonary embolism occurs in 5% of pregnant women referred for CTPA. In pregnant women without embolism on CTPA, potential alternative causes for patient symptoms are seen on CT in 12% of cases.

KEYWORDS:

CTPA; Pregnancy; Pulmonary embolism; V/Q

PMID:
25623008
DOI:
10.1016/j.carj.2014.11.006
[Indexed for MEDLINE]
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