Balloon catheter hysterosalpingography.
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Abortion, Spontaneous↗
Biomedical subjects
I C Yoder
Publications and source records attributed to I C Yoder.
Radiology of colon loop diversion: anatomical and urodynamic studies of the conduit and ureters in children and adults.
Colon loop diversion of the urinary stream is a relatively recent procedure designed to decrease the frequent incidence of reflux, infection and calculus formation in ileal loop conduits. Fifty-seven colon conduits and 107 ureters were studied. No reflux occurred in 67 ureters with intracolonic loop pressures exceeding 40 cm H2O. To evaluate and manage possible ureteral obstruction, percutaneous (antegrade) pyelography was utilized in 11 kidneys, ureteral perfusion (pressure-flow) studies in 8, and percutaneous catheter nephrostomy in one.
Adolescent↗
Quality assessment and assurance in diagnostic imaging. Theoretical and practical considerations and a quality audit of the excretory urogram.
Concepts necessary to an understanding of the basics of quality assurance audits are presented. Included are specific examples that bridged theory and practice by applying the protocol to a real-life diagnostic imaging situation. This method meets the present requirements of the Joint Commission of the Accrediation of Hospitals.
Costs and Cost Analysis↗
Ileal loop stenosis: a late complication of urinary diversion.
Stenosis of the ileal conduit was a late complication in 12 patients (10 adults) who underwent urinary diversion by this means at our hospital. The duration of the ileal loop at diagnosis ranged from 4 to 14 years, averaging 9 years. Loop stenosis was generally without symptoms and was suggested only by routine excretory urography, while loopography confirmed the diagnosis. The etiology of the condition is not clear. A variety of possible factors is considered, including microvascular ischemia, urine-borne toxic material, infectious and allergic stimuli and an immunologic defect. The pathogenesis of the condition appears to be based upon a chronic inflammatory reaction, with progressive fibrosis in the mucosa and submucosa of the ileal segment.
Adolescent↗
Unilateral hematocolpos and ipsilateral renal agenesis: report of two cases and review of the literature.
Two cases are presented of a partially duplicated vagina characterized by a one-sided hematocolpos associated with renal agenesis on the same side. A review of the English literature reveals 39 previously reported cases. Invariably this complex of anomalies is seen in adolescents and young women with progressively severe abdominal pain, menstrual irregularities, and a pelvic mass. It is important to make an early accurate diagnosis since they are usually managed as having an ovarian mass and submitted to multiple laparotomies and occasionally to mutilating surgery. An analysis is presented of the salient embryologic, clinical, and radiologic features of the 41 cases gathered. The need for definitive preoperative evaluation of both the urinary tract (urography and cystoscopy) and the genital tract (hysterosalpingography) cannot be overemphasized.
Adolescent↗
Tomography of pelvic-abdominal masses during intravenous urography. An added dimension.
Experience with a wide variety of pelvic-abdominal masses indicates that good quality tomography during high dose urography permits separation of solid from cystic lesions in almost all cases, even with minimal mass opacification. Evaluation of surface contour, absence or presence of a wall and its features, opacification, calcification, and uterine status provides the framework for characterization of the mass. Multiple masses can be identified and evaluated separately. While titration of the above criteria permits an accurate assessment independent of the clinical diagnosis, the latter information is important in separating a probable abscess from other cystic lesions. Since urography continues to be a pivotal preoperative roentgenologic investigation (ureteral status, pelvic kidney exclusion, etc.), the addition of tomography provides an added dimension to its usefulness. With the exception of the premenopausal female in whom radiation exposure is a consideration, tomography appears to preclude the routine necessity for subsequent ultrasound study which has been used to separate cystic from solid lesions.
Abdomen↗
Large Gartner duct cyst associated with a solitary crossed ectopic kidney: imaging features.
A large Gartner duct cyst associated with solitary crossed renal ectopia was diagnosed in a young woman presenting with dyspareunia and pelvic pain. Among the radiologic imaging modalities used, magnetic resonance imaging and sonography were the most helpful in determining the cystic nature of the mass, its separation from other pelvic organs, as well as its contiguity with the lateral wall of the vagina.
Adult↗