- 1. IOTHALAMIC ACID
- [An ionic triiodinated benzoate used as a contrast agent in diagnostic imaging. Like other organic iodine compounds, iothalamic acid blocks x-ray and appears opaque on x-ray film, thereby enhancing the visibility of structure and organs during angiography, arteriography, arthrography, cholangiography and computed tomography (CT) scanning procedures. ( NCI )] (UMLS (NCI) C0022034) =Organic Chemical; Indicator, Reagent, or Diagnostic Aid
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