AJR. American journal of roentgenology
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The purpose of our investigation was to assess the stomachs of a world-class speed-eating champion and of a control subject during a speed-eating test in our gastrointestinal fluoroscopy suite to determine how competitive speed eaters are able to eat so much so fast. ⋯ Our observations suggest that successful speed eaters expand the stomach to form an enormous flaccid sac capable of accommodating huge amounts of food. We speculate that professional speed eaters eventually may develop morbid obesity, profound gastroparesis, intractable nausea and vomiting, and even the need for a gastrectomy. Despite its growing popularity, competitive speed eating is a potentially self-destructive form of behavior.
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The objective of this report is to describe a previously unreported technique of selective cervical nerve block, performed from January 1, 2004, to May 19, 2006, in 560 injections, that was designed to allow continual monitoring of injectate passage and verification of needle tip position. We also illustrate faulty needle placement in a cadaveric neck. ⋯ Using a short connecting tube, contrast material mixed with the final injectate, and fluoroscopy when performing a selective cervical nerve block allows continual monitoring of injectate including where washout of the original testing contrast material actually flows. A true lateral view shows a more dangerous anterior needle tip placement. In addition, performing a test with anesthetic and contrast material, waiting 1.5 minutes before administering the final injectate, and using a water-soluble steroid may provide further safety with selective cervical nerve block.
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AJR Am J Roentgenol · Aug 2007
Septic arthritis versus transient synovitis of the hip: gadolinium-enhanced MRI finding of decreased perfusion at the femoral epiphysis.
The purpose of this study was to identify differences in the MRI findings of septic arthritis and transient synovitis in patients with nontraumatic acute hip pain and hip effusion. ⋯ Decreased perfusion at the femoral epiphysis on fat-suppressed gadolinium-enhanced coronal T1-weighted MRI is useful for differentiating septic arthritis from transient synovitis.
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AJR Am J Roentgenol · Aug 2007
Diffusion tensor imaging assessment of brain white matter maturation during the first postnatal year.
The purpose of this study was to use diffusion-weighted and diffusion tensor imaging to investigate the status of cerebral white matter (WM) at term gestation and the rate of WM maturation throughout the first year of life in healthy infants. ⋯ At term, both ADC and FA differ significantly in peripheral WM and deep WM, deep WM structures being more mature. Both deep WM and peripheral WM mature more rapidly during approximately the first 3 months in comparison with the rest of the first year. Unexpected differences in early (first 100 days) rates of maturation assessed with diffusion-weighted (ADC) and diffusion tensor (FA) imaging suggest that these two techniques may be sensitive to different aspects of WM maturation in the early perinatal period.
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AJR Am J Roentgenol · Aug 2007
Comparative StudyCombined T2-weighted and diffusion-weighted MRI for localization of prostate cancer.
The objective of our study was to compare T2-weighted MRI alone and T2 combined with diffusion-weighted imaging (DWI) for the localization of prostate cancer. ⋯ Combined T2 and DWI MRI is better than T2 imaging alone in the detection of significant cancer (Gleason score > or = 6 and diameter > 4 mm) within the peripheral zone of the prostate.