Noncontrast helical CT (NHCT) scanning is a more accurate method of diagnosing acute urolithiasis than intravenous pyelogram (IVP), according to researchers who conducted a meta-analysis of previously published data.
Since its introduction in 1923, intravenous pyelography (IVP) has been the test of choice for diagnosing acute urolithiasis, the researchers explain. However, in 1994, NHCT was introduced as a possible replacement for IVP.
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