title: Low dose cervical CT myelography. How acceptable are adverse effects at this juncture?
abstract: When cervical myelography is required, the highest incidence of adverse effects usually supervenes. These effects are particularly important in patients with metastatic disease, post-cervical trauma and out-patients. Low dose hydrosoluble CT myelography imaging (300-500 mg I, total dose) can be accomplished by injecting the contrast medium when the patient is in the CT scanner via C1-2 puncture with a small needle (e.g. 25 gauge). Our method of accomplishing this was to use C-arm fluoroscopy performed with the patient either supine or prone and to transfer the patient with the needle in situ to the scanner. This was done with the patient on a portable exchangeable CT table top. Remarkably few adverse effects (transient mild headache in 2 of 22 patients) would appear to render this technique safe and useful.
authors.affiliation: Russell L. Morgan Department of Radiology and Radiological Science, Johns Hopkins Medical Institutions, Baltimore, Maryland.
authors.forename: H
authors.initials: H
authors.lastname: Wang
authors.forename: A E
authors.initials: AE
authors.lastname: Rosenbaum
authors.forename: M L
authors.initials: ML
authors.lastname: Updike
authors.forename: A J
authors.initials: AJ
authors.lastname: Kumar
authors.forename: S J
authors.initials: SJ
authors.lastname: Zinreich
authors.forename: H S
authors.initials: HS
authors.lastname: Ahn
authors.forename: W S
authors.initials: WS
authors.lastname: Kim
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D005260:Female; D006801:Humans; D007479:Iopamidol / Q000008:administration & dosage / Q000009:adverse effects*; D008297:Male; D008793:Metrizamide / Q000008:administration & dosage / Q000009:adverse effects*; D008875:Middle Aged; D009192:Myelography / Q000009:adverse effects*; D014057:Tomography, X-Ray Computed
chemical_list: D007479:Iopamidol; D008793:Metrizamide