Biomedical subjects

Ramin Zabih

Publications and source records attributed to Ramin Zabih.

2 recordsLinked to original sources

PubMed2002

Automatic selection of mask and arterial phase images for temporally resolved MR digital subtraction angiography.

For time-resolved background-subtracted contrast-enhanced magnetic resonance angiography, the bright and sparse arterial signal allows unique identification of contrast bolus arrival in the arteries. This article presents an automatic filtering algorithm using such arterial characterization for selecting arterial phase images and mask images to generate an optimal summary arteriogram. A paired double-blinded comparison demonstrated that this automatic algorithm is as effective as the manual process.

Adult↗

PubMed2002

Postprocessing techniques for time-resolved contrast-enhanced MR angiography.

The purpose of this study was to improve dynamic two-dimensional projection magnetic resonance digital subtraction angiography by using remasking and filtering postprocessing techniques. Four methods were evaluated in 50 patients: default mask subtraction, remasked subtraction, filtering based on the SD, and linear filtering. The results demonstrated that postprocessing techniques such as linear filtering can reduce background motion artifacts and improve arterial contrast-to-noise ratio.

Adult↗