AJR. American journal of roentgenology
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AJR Am J Roentgenol · Mar 2014
Apparent diffusion coefficient for prostate cancer imaging: impact of B values.
The purpose of this article is to investigate the effect of b values on apparent diffusion coefficient (ADC) values estimated from 1.5-T diffusion-weighted MRI (DWI) of the prostate acquired with an endorectal coil in distinguishing prostate cancer from normal-tissue regions of interest (ROIs) and the correlation of ADC values with the tumor Gleason score. ⋯ The choice of b values can significantly affect ADC estimates. ADC values can produce a similar discriminant performance in distinguishing prostate cancer from normal-tissue ROIs and in correlation with the Gleason score, but an appropriate ADC cutoff value needs to be selected specifically for each b-value combination.
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AJR Am J Roentgenol · Mar 2014
Clinical TrialSafety and efficacy of percutaneous vertebroplasty and interventional tumor removal for metastatic spinal tumors and malignant vertebral compression fractures.
The purpose of this study was to determine the safety and efficacy of percutaneous vertebroplasty and interventional tumor removal in the management of metastatic spinal tumors and malignant vertebral compression fractures. ⋯ Percutaneous vertebroplasty and interventional tumor removal are safe, effective, and minimally invasive palliative therapies for reducing pain and improving function in patients with metastatic spinal tumors and malignant vertebral compression fractures.
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AJR Am J Roentgenol · Mar 2014
Indeterminate lung nodules in cancer patients: pretest probability of malignancy and the role of 18F-FDG PET/CT.
The purpose of this study was to determine likelihood of malignancy for indeterminate lung nodules identified on CT comparing two standardized models with (18)F-FDG PET/CT. ⋯ PET/CT improves stratification of cancer patients with indeterminate pulmonary nodules. A substantial number of patients considered at low and intermediate pretest likelihood of malignancy with histology-proven lung malignancy showed abnormal PET/CT findings.