ABSTRACT
Seven computed tomography scans and 19 computed tomograph peritoneography (CTP) studies performed in 20 peritoneal dialysis patients were analyzed retrospectively as to their diagnostic usefulness in peritoneal dialysis related complications. Computed tomographic peritoneography was found to be superior to computed tomography scans in localizing small leak sites. In seven of nine patients with clinically diagnosed dialysate leakage, computed tomographic peritoneography supported the clinical diagnosis and localized the leak site in six patients. All patients with a conspicuous leak site and/or with leaks through hernias had to have surgical treatment. Computed tomographic peritoneography failed to reveal a leak or identify a fluid tract in patients with intermittent, small leaks. Those leaks responded easily to a dialysis regimen with diminished intraabdominal pressure. Normal intraperitoneal fluid distribution was based on 17 studies after intraperitoneal infusion of 2,000 ml of peritoneal dialysis solution in patients without intraabdominal organomegaly and/or any clinical suspicion of fluid maldistribution, with average peritoneal transport characteristics. As appraised in the supine position, approximate fluid contents in the intraperitoneal spaces were pelvis, 30-55%; paracolic gutter, 15-30%; perisplenic and perihepatic, 10-20% each, and lesser sac, 1-3%. Severe fluid maldistribution on computed tomography peritoneography, particularly a small fluid volume in the pelvic space, is a poor prognostic sign as to the feasibility of peritoneal dialysis; neither of our two patients with no fluid in the pelvic space could be maintained on peritoneal dialysis, while patients with no fluid in the lesser sac, perihepatic and perisplenic spaces could be maintained on peritoneal dialysis. No fluid was seen in the peritoneal cavity after drainage in the vertical position.(ABSTRACT TRUNCATED AT 250 WORDS)
Subject(s)
Ascitic Fluid/diagnostic imaging , Peritoneal Dialysis/adverse effects , Peritoneal Diseases/diagnostic imaging , Tomography, X-Ray Computed/methods , Adult , Aged , Aged, 80 and over , Ascitic Fluid/etiology , Contrast Media , Extravasation of Diagnostic and Therapeutic Materials , Female , Humans , Kidney Diseases, Cystic/diagnostic imaging , Male , Middle Aged , Peritoneal Diseases/etiology , Peritonitis/diagnostic imaging , Peritonitis/etiology , Pseudomonas Infections/diagnostic imaging , Pseudomonas Infections/etiology , Retrospective StudiesABSTRACT
We present a case study of a patient with seminoma who had normal testicles on palpation. Testicular ultrasound is the technique of choice to locate occult nonpalpable testis lesions. We recommend its use in the search for the source of any retroperitoneal mass of undetermined origin.
Subject(s)
Dysgerminoma/diagnosis , Testicular Neoplasms/diagnosis , Testis/pathology , Adult , Biopsy , Humans , Male , Palpation , Tomography, X-Ray Computed , UltrasonographyABSTRACT
Hereditary multiple exostoses usually involve the long bones, but occasionally the spine. When the spine is involved, serious neurologic deficits may occur. We report a case of a 12-year-old girl with an exostosis in the cervical spine (C5), which caused a spastic quadriplegia.
Subject(s)
Exostoses, Multiple Hereditary/diagnosis , Magnetic Resonance Imaging , Spinal Cord Compression/diagnosis , Tomography, X-Ray Computed , Cervical Vertebrae/diagnostic imaging , Cervical Vertebrae/pathology , Child , Exostoses, Multiple Hereditary/complications , Female , Humans , Quadriplegia/etiology , Spinal Cord Compression/etiologyABSTRACT
CT scans of Burkitt's lymphoma in 8 American patients are presented. Computed tomography was the major diagnostic imaging modality in 4, and the abdomen was the most commonly involved site in our patients. CT was found to be the method of choice for diagnostic purposes and for assessing the size of abdominal masses. Furthermore, because of the relative effectiveness of modern chemotherapeutic agents in treatment of this type of lymphoma, CT did and can play a unique role in follow-up of these cases during therapy.
Subject(s)
Burkitt Lymphoma/diagnostic imaging , Abdominal Neoplasms/diagnostic imaging , Abdominal Neoplasms/drug therapy , Adolescent , Adult , Burkitt Lymphoma/drug therapy , Child , Child, Preschool , Female , Follow-Up Studies , Humans , Male , Middle Aged , Pelvic Neoplasms/diagnostic imaging , Pelvic Neoplasms/drug therapy , Tomography, X-Ray Computed , United StatesABSTRACT
Esophageal hemangioma is a benign tumor that may cause dysphagia and upper gastrointestinal bleeding. Invasive measures such as endoscopic biopsy and surgical excision have been required for diagnosis in most reported cases. We have reported a case focusing on the use of two noninvasive techniques, contrast CT and radionuclide angiography, in the diagnosis of esophageal hemangioma.
Subject(s)
Esophageal Neoplasms/diagnosis , Hemangioma/diagnosis , Tomography, X-Ray Computed , Aged , Esophageal Neoplasms/diagnostic imaging , Esophagoscopy , Hemangioma/diagnostic imaging , Humans , Male , Radionuclide Imaging , Tin PolyphosphatesSubject(s)
Catheterization/methods , Foreign Bodies/therapy , Pulmonary Artery , Vena Cava, Superior , Aged , Fluoroscopy , Humans , Male , Middle AgedABSTRACT
Intraosseous hemophilic pseudotumor involving the orbit has not been described previously. A 14-year-old white male presented with a rapidly progressive, expansile right orbital mass consisting of hematoma contained within bony cortex. Computerized tomography revealed findings consistent with intraosseous hemophilic pseudotumor. The patient responded to conservative therapy of factor VIII replacement.
Subject(s)
Fibroma/complications , Hemophilia A/complications , Orbital Neoplasms/complications , Adolescent , Fibroma/diagnosis , Humans , Male , Orbital Neoplasms/diagnosisSubject(s)
Pyelonephritis/pathology , Humans , Infarction/pathology , Kidney/blood supply , Male , Middle AgedABSTRACT
A case of aspergillosis of the central nervous system with multiple granulomas examined by computed tomography is reported. The findings are those of chronic mass lesions with and without calcium deposits. An associated cystic configuration probably is not specific for aspergillomas.
Subject(s)
Aspergillosis/diagnostic imaging , Brain Diseases/diagnostic imaging , Tomography, X-Ray Computed , Adolescent , Calcinosis/diagnostic imaging , Granuloma/pathology , Humans , MaleABSTRACT
A feasibility study is described to provide quantitative texture measures to distinguish between normal lung, alveolar infiltrates and interstitial infiltrates. Advanced computer imaging technology and decision making processes were applied to distinguish between these textural patterns. The results, based on computer extracted quantitative measures, show an excellent separation of the three classes considered with 95% accuracy in the training phase and 90% accuracy in the testing phase.
Subject(s)
Diagnosis, Computer-Assisted , Pulmonary Fibrosis/diagnostic imaging , Humans , Lung Diseases/diagnostic imaging , Pulmonary Alveoli/diagnostic imaging , RadiographyABSTRACT
The authors describe a microprocessor-based digital image display system utilizing a solid-state image memory with a high quality television-type monitor for display of computed tomography images. It is an alternative to a commercially available display system, and offers the potential for research in digital image display. It is now under clinical evaluation. Image input to the stand-alone display system is via 9-track magnetic tape common to almost all CT machines, and it may be programmed to accept digital tapes from any type of CT machine and display them in a common format.
Subject(s)
Data Display , Tomography, X-Ray Computed/instrumentation , HumansABSTRACT
Missouri Automated Radiology System has functioned in full support of the Department of Radiology for more than 7 years. For the past 5 years, MARS has functioned as a minicomputer system on a DEC (Digital Equipment Corporation) PDP-15 computer. While continuing to effectively support the department, in daily use by 20 staff and 15 resident physicians, MARS has continued to function in a research and development mode. With the continuous development of new applications, MARS is now essential to the function of the department and has again proven the point that physicians and computers can function symbiotically in the medical environment.