منابع مشابه
Computed Tomography Scans of Alcoholics : Cerebral Atrophy ?
time each day, in closed, sound-insulated chambers, with continuous white masking noise. There were thus no distractions to interfere with the performance of the task. Another feature that may have influenced the result is that the rat's first response in the session was usually reinforced. Contrast effect may have contributed to the widespread impression that BSR results in rapid extinction. A...
متن کاملMinimising medically unwarranted computed tomography scans.
As computed tomography (CT) is such a superb diagnostic tool and individual CT risks are small, whenever a CT scan is clinically warranted, the CT benefit/risk balance is by far in the patient's favour. However, if a CT scan is not clinically warranted, this balance shifts dramatically. It is likely that at least 25% of CT scans fall into this latter category, in that they could either be repla...
متن کاملIncreasing efforts to regulate computed tomography scans.
I n 2009, Cedars – Sinai Medical Center in Los Angeles disclosed that 206 patients had been severely overdosed with radiation while receiving perfusion computed tomography (CT) scans of the brain. That debacle catalyzed a California law that now represents the fi rst effort to regulate U.S. CT scans. Dubbed SB-1237, with an effective date of July 1, 2012, the law directs hospitals in California...
متن کاملAlarm about computed tomography scans is unjustified.
246 MJA • Volume 193 Number 4 • 16 August 2010 depending on their state of study and the state to which they are applying, it seems that in the future these students may miss out in favour of Commonwealth-supported students covered by the health ministers’ guarantee. Elkin and Studdert concluded that Australian courts would be unlikely to find that international students hold a legitimate expec...
متن کاملComputed tomography scans of alcoholics: cerebral atrophy?
for the smaller sulci noted upon further abstinence among these alcoholics, the error in measuring the sulci would seem to be a much more likely explanation. Further, Carlen and colleagues speculate that axonal sprouting and regrowth of supporting glia and vasculature may be responsible for improved neuropsychological functioning observed in alcoholics who remain abstinent. However, synaptogene...
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ژورنال
عنوان ژورنال: Cancer
سال: 2001
ISSN: 0008-543X,1097-0142
DOI: 10.1002/1097-0142(20010201)91:3<555::aid-cncr1034>3.3.co;2-6