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PURPOSE: To evaluate the computed tomographic (CT) appearance of tumors and lung injury in patients who have undergone stereotactic radiation therapy (SRT) for solitary lung tumors. MATERIALS AND METHODS: Twenty-seven patients with primary lung cancer and four with metastatic lung cancer who...
PURPOSE: To develop and assess a technique for induction of C peptide–negative diabetes in adult nonhuman primates in preparation for preclinical investigation of type 1 diabetes treatments. MATERIALS AND METHODS: First, temporary embolization of the hepatic and gastric arteries was performed...
PURPOSE: To investigate the effect of duration and rate of contrast material injection on aortic peak time and peak enhancement in an injection protocol in which the contrast material dose is adjusted according to patient weight. MATERIALS AND METHODS: One hundred ninety-nine patients were...
Two- and three-dimensional (3D) white matter atlases were created on the basis of high-spatial-resolution diffusion tensor magnetic resonance (MR) imaging and 3D tract reconstruction. The 3D trajectories of 17 prominent white matter tracts could be reconstructed and depicted. Tracts were...
PURPOSE: To determine if contrast material–enhanced magnetic resonance (MR) imaging is useful for assessment of myocardial viability in patients with equivocal stress-rest results from single photon emission computed tomographic (SPECT) examination with technetium 99m sestamibi. MATERIALS AND...
Increased mammographic breast density is a moderate independent risk factor for breast cancer, with findings of published studies in which quantitative methods of assessment were used showing a positive association. Breast density may be quantified by using visual assessment or planimetry....
Perhaps the most common and familiar way that the results of medical research and epidemiologic investigations are summarized is in a table of counts. Numbers of subjects with and without the outcome of interest are listed for each treatment or risk factor group. By using the study sample data...
PURPOSE: To determine the accuracy of the two-point Patlak plot in the calculation of glomerular filtration rate (GFR). MATERIALS AND METHODS: Fifty patients without acute renal disorder were included. GFR was calculated by using a two-point Patlak plot technique. The computed tomography (CT)...
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