Li-ping Xiong

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PURPOSE Three male patients with a history of spray-paint inhalation are presented. METHODS Spin-echo MR was used to evaluate the central nervous system changes secondary to toluene inhalation delivered via spray-paint fumes. RESULTS The remarkable findings included the loss of cerebral and cerebellar gray-white matter discrimination, scattered(More)
Extensive MR signal change in the craniad spinal cord parenchyma was found to be an ancillary sign of disease advancement in three patients with clinically progressive posttraumatic syringomyelia. This craniad margin of parenchymal spinal cord T2 hyperintensity resolved after cystoperitoneal shunt placement. There was a concomittant reduction or(More)
PURPOSE To evaluate the signal characteristics of the optic papilla (optic nerve head) on routine cranial MR images in patients with clinical evidence of optic papilla elevation caused by high intracranial pressure, and to compare these findings with findings in healthy adult volunteers. METHODS We reviewed retropectively the MR imaging examinations of 15(More)
Because of the stochastic nature of biochemical processes, the copy number of any given type of molecule inside a living cell often exhibits large temporal fluctuations. Here, we develop analytic methods to investigate how the noise arising from a bursting input is reshaped by a transport reaction which is either linear or of the Michaelis-Menten type. A(More)
RATIONALE AND OBJECTIVES Callosal impingement has been postulated to cause the symptoms associated with normal pressure hydrocephalus. The authors developed an animal model for the investigation of corpus callosum impingement by the falx cerebri. METHODS The corpus callosum was compressed from above by a plastic blade and surgically placed in the(More)
Renal dysfunction predicts all-cause mortality in general population. However, the prevalence of renal insufficiency and its relationship with mortality in cancer patients are unclear.We retrospectively studied 9465 patients with newly diagnosed cancer from January 2010 to December 2010. Renal insufficiency was defined as an estimated glomerular filtration(More)
RATIONALE AND OBJECTIVES We evaluated histologic changes associated with chronic impingement of the corpus callosum. Similar callosal impingement has been postulated to be responsible for some of the symptoms in people who have hydrocephalus. METHODS Eight rats with callosal impingement produced by surgical implantation of a blunt blade in the(More)
A 52-year-old man presented with transient monocular blindness that was both spontaneous and exacerbated by exertion. Dynamic orbital CT revealed a delay in the perfusion of the left optic nerve head suggestive of a steal phenomenon. Subsequent selective arteriography demonstrated an arteriovenous fistula between the falx artery originating from the(More)
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