Academic radiology
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To assess the pretest practices of US clinicians who treat patients with acute pulmonary embolism (PE). ⋯ The majority of clinicians we surveyed use an unstructured approach when estimating the pretest probability of acute PE. With the exception of low probability scenario, clinicians agreed on testing choices in suspected acute PE, regardless of the method or frequency of pre-test assessment.
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In regions of intravoxel fiber crossing, the single-tensor model does not provide accurate results. The previously published models could resolve this issue but needed a long scan time and long computational time. This article aims to present the new model, which uses interpolated diffusion tensor orientations and requires the estimation of fewer parameters than the previously published model, where all parameters for the two diffusion ellipsoids have to be estimated. ⋯ The proposed radial basis function-based technique could reconstruct diffusion properties at the fiber-crossing volume from sparse sampling of high angular diffusion weighted images.