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A case of suspected femoral arteriovenous fistula after cardiac catheterization remained undiagnosed because of inability to obtain access for arteriography. Magnetic resonance imaging with phase-shift velocity mapping allowed a noninvasive diagnosis and qualitative evaluation of the lesion.
Colloid cysts are congenital lesions considered to be derived from the primitive neuroepithelium and are most frequently located in the anterior third ventricle. In this paper a case of colloid cyst with a intra/suprasellar location is presented. Computed tomographic characteristics of this...
Delayed hemorrhage is an unusual complication of silastic dural substitute that can have a prolonged latent period. Two such patients that presented 6 and 12 years following surgery and that were evaluated by MR imaging are reported.
We report the application of myocardial tagging by MR to define tissue planes and differentiate contractile from noncontractile tissue in a neonate with congenital cardiac rhabdomyoma. Using custom-written pulse programming software, six 2 mm thick radiofrequency (RF) slice-selective...
We report a case with intravenous leiomyomatosis of uterus that showed characteristic appearances on MR. Magnetic resonance demonstrated a tangle of distended and folded tubular structures, well enhanced by Gddiethylenetriamine pentaacetic acid. It was confirmed by surgery that these tubular...
A case of lobar primary pulmonary lymphoma is presented. In an asymptomatic patient with chronic lobar consolidation, CT confirmed the absence of a hilar mass or mediastinal adenopathy and demonstrated patent but stretched and irregularly narrowed bronchi.
The visibility of the pericardium as well as of the space between the dorsal aspect of the sternal surface and the pericardial surface after cardiac surgery was determined by CT and/or MR with electrocardiographic (ECG)-gated spin-echo (SE) and gradient-echo sequences. Seventeen patients who had...
A theory and technique are presented that allow nonlinear resampling of positron emission tomography data to remove nonlinear differences in brain shape. The resampling is determined empirically by a function relating the observed image and a desired template. The validity, reliability, and...
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