Journal of computer assisted tomography
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J Comput Assist Tomogr · May 2004
Comparative StudyAccuracy and time efficiency for the detection of thoracic cage fractures: volume rendering compared with transverse computed tomography images.
To compare the accuracy and time efficiency of volume rendering (VR) compared with transverse images of multidetector-row computed tomography data to identify thoracic cage fractures. ⋯ Volume rendering of computed tomography data depicts thoracic cage fractures with a high accuracy similar to that of transverse images but is considerably faster.
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J Comput Assist Tomogr · Mar 2004
Magnetic resonance imaging of bowel ischemia induced by ligation of superior mesenteric artery and vein in a cat model.
To assess the usefulness of magnetic resonance (MR) imaging for detecting bowel ischemia with strangulation compared with histopathologic findings in an experimental cat model. ⋯ Delayed contrast-enhanced MR images and T2-weighted images were helpful for detecting subacute and acute bowel ischemia with strangulation, respectively.
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J Comput Assist Tomogr · Mar 2004
Value of volumetric data acquisition in expiratory high-resolution computed tomography of the lung.
The purpose of this study is to determine the potential advantages of volumetric expiratory high-resolution computed tomography (HRCT) over noncontiguous expiratory HRCT in visualizing the airway conducting to the areas of air trapping and in providing additional significant information in patients with diffuse lung disease with small airway abnormalities. ⋯ Volumetric expiratory HRCT allows for better identification of the airway conducting to the areas of air trapping compared with noncontiguous images as well as additional findings of diagnostic significance.
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J Comput Assist Tomogr · Jan 2004
Case ReportsMaple syrup urine disease: diffusion-weighted and diffusion-tensor magnetic resonance imaging findings.
We present conventional magnetic resonance (MR) imaging with diffusion-weighted and diffusion-tensor imaging findings in a 10-day-old neonate with maple syrup urine disease (MSUD). On conventional MR imaging, signal abnormalities were noted in the affected white matter of cerebellum, dorsal brainstem, thalami, posterior limbs of internal capsules, and the corona radiata. ⋯ Diffusion-tensor imaging showed decreased anisotropy (average 57% reduction) in the corresponding areas. Both diffusion-weighted and diffusion-tensor imaging are valuable in the diagnosis and understanding of the pathogenesis of MSUD, with findings that suggest cytotoxic edema and damaged oligodendro-axonal units within the affected white matter.
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J Comput Assist Tomogr · Jan 2004
Computed tomography in pulmonary artery sarcoma: distinguishing features from pulmonary embolic disease.
The purpose of this study was to present the computed tomography (CT) findings of pulmonary artery sarcoma in 7 patients with a focus on the distinguishing features of pulmonary embolic disease. ⋯ CT can help differentiate pulmonary artery sarcoma from pulmonary embolism by indicating a low-attenuation filling defect occupying the entire luminal diameter of the proximal or main pulmonary artery, expansion of the involved arteries, or extraluminal tumor extension.