Special challenges face the radiologist studying the morbidly obese patient. Patients may be too large to fit between the table and the fluoroscopic tower, may not fit in the CT gantry, and may be above the weight limits for the fluoroscopic table and CT scanner. Technical factors may prevent adequate exposure technique for plain films and fluoroscopy. Portable technique is generally useless owing to the limited power of the portable generator. The CT image may be degraded by artifacts secondary to beam hardening.
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