Following the implementation of SPECT V/Q imaging for PE diagnosis, the investigators previously conducted an observational study over the period 2011-2013 that showed the safety of a diagnostic management based on SPECT V/Q to rule out PE. However, PE prevalence was high (28%), which may seem a bit high as compared with other recent studies. The hypothesis was that the use of SPECT V/Q may be responsible for an overdiagnosis of PE, especially at the implementation phase of the test. The aim of this study was to perform a time trend analysis of the evolution over the years of PE diagnosis with SPECT V/Q.
Study Type
OBSERVATIONAL
Enrollment
2,000
CHRU de Brest
Brest, France
Diagnostic conclusion of all SPECT V/Q scans performed for a suspected acute PE
positive, negative, or non-conclusive
Time frame: April 2011 to December 2016
Risk of thromboembolic events (i.e. objectively confirmed pulmonary embolism or proximal deep vein thrombosis) during the 3-month follow-up period in patients left untreated based on a negative SPECT V/Q.
Time frame: up to 3 Months following the date of the SPECT V/Q scan
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