Case report 561: Systemic mastocytosis.
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Biopsy↗
Biomedical subjects
G A Irwin
Publications and source records attributed to G A Irwin.
Drip infusion urography with meglumine iodamide.
In a double-blind study of 283 patients (140 given iodamide and 143 diatrizoate), meglumine iodamide 24% produced a significantly greater degree of opacification than meglumine diatrizoate 30% (P less than 0.01 to P less than 0.001) in the renal calyces during the early phase of drip infusion pyelography. The agents were infused at a dose of 4.5 ml/kg, up to a maximum volume of 300 ml, over a period of about 10 min. The incidence and nature of laboratory abnormalities and clinical adverse reactions produced by the drugs were similar. No severe reactions occurred. The apparent superiority of the iodamide solution in the early stage of excretion, despite its lower iodine content, may be due to the partial secretion of iodamide by the renal tubules, as observed in other studies.
Adolescent↗
Displacement of the superior sagittal sinus associated with a brain tumor.
A 13-year-old girl with an 11 1/2-year history of seizures, was found to have a brain tumor and contralateral displacement of the superior sagittal sinus and falx. The rarity and possible mechanisms of sagittal sinus displacement are discussed.
Adolescent↗
Massive retroperitoneal lipoma in a mongoloid child.
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Adolescent↗
Radiographic evaluation of patency of interposition mesocaval shunts.
The technique of side-to-side mesocaval anastomosis with the interposition of a prosthetic graft was described in 1970. We report the result of venographic evaluation of patency of this type of shunt in our patients. Demonstration of an unoccluded graft; resistance to retrograde injection of dye against the blood stream into the superior mesenteric vein; rapid clearing of dye from superior mesenteric vein following injection and "lamellar flow defect" in the vena cava above the site of anastomosis during vena cavogram, were considered criteria of patency of the interposition mesocaval shunt.
Blood Vessel Prosthesis↗
Arterial hemorrhage complicating pelvic fracture.
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Adult↗
A computer assisted radiological reporting system.
The authors report their experience with a commercially available computerized diagnostic reporting system. The system has been in operation more than 36 months and processes more than 95,000 cases annually. Dictation is needed for only 13% of emergency room cases and 23% of in-patient cases. Savings in overtime and increased efficiency have resulted. The system can be adapted to other computerized systems within the x-ray department. Acceptance by staff and residents has been good.
Diagnosis, Computer-Assisted↗
Digital low-pass filtering.
Random noise beyond the maximum signal frequency of the imaging system can be removed by low-pass filtering without compromising signal transmission.
Brain↗
The rim sign in epidural hematoma: case report.
A case of epidural hematoma of 7 days' duration showed a rim sign in the dynamic and static brain images. The significance and value of a rim sign are discussed.
Adolescent↗
Who needs darkrooms?
With the advent of recent developments in film manufacturing and experience with photographic filters, the possibility that the traditional x-ray darkroom may no longer be necessary, has been raised. The authors present their experiments using various light filters and film and suggest that with the use of various combinations of lights, films and small tabletop film processors now on the market the darkroom is indeed no longer necessary. Consequently, the elimination of the expense and space for planning darkrooms in new facilities, or replacing them in existing facilities, is a feasible possibility at this time.
Lighting↗