The use of iohexol as oral contrast for computed tomography of the abdomen and pelvis.
Positive oral contrast agents (high-osmolar iodinated solutions [high-osmolar contrast medium] or barium sulfate suspensions) are used routinely for abdominal computed tomography. However, these agents are not ideal. Patients complain about the taste and, sometimes, refuse to drink the required quantity. Nausea, vomiting, and diarrhea are frequent. In certain clinical indications, either barium suspensions or high-osmolar contrast mediums may be contraindicated. This technical note describes the potential advantages of using low-osmolar iodinated solutions as an oral contrast agent for computed tomography.
Horton
Karen M
KM
Department of Radiology, Johns Hopkins Medical Institutions, Baltimore, MD 21287, USA. kmhorton@jhmi.edu
Fishman
Elliot K
EK
Gayler
Bob
B
D000284:Administration, Oral; D003287:Contrast Media / Q000008:administration & dosage* / Q000009:adverse effects; D004305:Dose-Response Relationship, Drug; D005421:Flavoring Agents / Q000008:administration & dosage; D006801:Humans; D007472:Iohexol / Q000008:administration & dosage* / Q000009:adverse effects; D009994:Osmolar Concentration; D010388:Pelvis / Q000000981:diagnostic imaging*; D011856:Radiographic Image Enhancement / Q000379:methods*; D011860:Radiography, Abdominal / Q000379:methods*; D014057:Tomography, X-Ray Computed / Q000379:methods*; D014867:Water / Q000008:administration & dosage
D003287:Contrast Media; D005421:Flavoring Agents; D014867:Water; D007472:Iohexol