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In a study of three children experiencing hip pain, low-signal-intensity patterns in the femoral head on T1-weighted magnetic resonance (MR) images eventually resolved, reverting to the normal signal patterns. These findings occurred in conjunction with documented clinical improvement of the patients' condition. T2-weighted images revealed isointense(More)
Thirty-two patients with suspected lumbar disc herniation were studied with magnetic resonance imaging (MRI) and contrast computed tomography (CT). One hundred disc levels were evaluated. Twenty-five patients underwent surgery on 31 discs, allowing anatomic confirmation of the diagnosis. Surgical findings supported the MRI diagnosis at 28 of 31 levels(More)
Two years of experience with 100 patients in the serial study of brain tumors during and after radiation therapy has shown that computed tomography is useful in (a) depiction of regression or growth of primary and metastatic intracranial tumors, (b) recognition of untoward sequelae of radiation therapy, such as necrosis and edema, and (c) appreciation of(More)
By its ability to differentiate the densities of various intracranial tissues, computed tomography is an ideal tool to investigate the postoperative course and complications of neurosurgical patients. The most important immediate postoperative complications are intracerebral edema and epidural, subdural or intracerebral hematomas. The extent of surgical(More)
We report a case of acute postinfectious encephalopathy in a child following Campylobacter jejuni enteritis. Serial MR scans showed lesions involving predominantly gray matter and the adjacent subcortical white matter--findings different from those in other immune-mediated disorders, such as systemic lupus erythematosus, in which either white or gray matter(More)
The difficulty in evaluating the effectiveness of radiation therapy of primary cerebral tumors is well appreciated. Changes in the tumor size and the presence or absence of edema or necrosis during or following treatment cannot be readily evaluated by present noninterventive roentgenographic methods. At New York University Medical Center, computerized(More)
BACKGROUND Renal allograft retrieval from live donors requires an accurate determination of kidney anatomy including the renal arterial supply. Traditionally, conventional angiography has served as the gold standard for obtaining this information. More recently, magnetic resonance angiography (MRA) has been compared with conventional angiography. Although(More)
Computed tomography demonstrates intracranial neoplasms so clearly that nearly all early work in this field was limited to descriptions of the appearance of various lesions. Only recently have investigators directed their attention to the medical implications of the physical and pathophysiologic phenonmena that characterize this remarkable new technique.(More)
We report a case of a 21-year-old white woman with a three-week history of rapidly progressive paresis and paresthesias of her extremities presenting as an intramedullary cervical cord lesion. Computer-assisted tomography and magnetic resonance imaging demonstrated a normal brain with a cervical cord enlargement suggestive of a primary spinal cord tumor.(More)