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J Thromb Thrombolysis. 2009 Oct;28(3):342-7. doi: 10.1007/s11239-009-0331-5. Epub 2009 Mar 27.

Reconstructed 4-chamber views compared with axial imaging for assessment of right ventricular enlargement on CT pulmonary angiograms.

Author information

1
Department of Research, St Joseph Mercy Oakland Hospital, Pontiac, MI 48341-5023, USA. steinp@trinity-health.org

Abstract

PURPOSE:

To test the hypothesis that right enlargement assessed from right ventricular/left ventricular (RV/LV) dimension ratios of computed tomographic (CT) angiograms are equivalent irrespective of whether measured on axial views or reconstructed 4-chamber views.

METHODS:

RV/LV dimension ratios were calculated from measurements on axial views, manually reconstructed 4-chamber views and computer generated reconstructed 4-chamber views of CT angiograms in 152 patients with PE.

RESULTS:

Paired readings of the axial view and manually reconstructed 4-chamber view showed agreement with RV/LV > or =1 or RV/LV <1 in 114 of 127 (89.8%). Paired readings also showed agreement in 119 of 127 (93.7%) with axial views and computer generated reconstructed 4-chamber views. The McNemar test showed no statistically significant difference between assessments of RV enlargement (RV/LV > or = 1) with any method.

CONCLUSION:

Right ventricular enlargement can be determined from axial views on CT angiograms, which are readily and immediately available, without obtaining 4-chamber reconstructed views.

PMID:
19326189
DOI:
10.1007/s11239-009-0331-5
[Indexed for MEDLINE]

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