Role of B-color and Resolution Sonography Presets for the Diagnosis of Lower Extremity Deep Vein Thrombosis

Abstract

Sonography is an accurate and commonly used method of determining the presence, location, and acuity of deep vein thrombosis (DVT). A retrospective data analysis of 284 venous examinations was performed to determine if imaging presets increase the ability to detect an acute DVT. There were no significant differences between the outcomes of three modalities of sonographic imaging. If a patient had a prior DVT, the likelihood of observing another DVT using only two-dimensional imaging, resolution presets, or the B-color option was approximately nine times greater than for a patient who did not have a prior DVT. Sex, age, body mass index, ethnicity, and comorbidities of diabetes and/or hypertension were not significant predictors of observing a DVT. Using a resolution-enhancing preset that increases the overall frequency range to reduce artifacts and improve border definition and/or using the B-color preset to tint the overall image did not improve the likelihood of detecting an acute DVT during a lower extremity venous duplex sonogram.