摘要:

A woman was admitted to the hospital after blunt abdominal trauma. Initial ultrasound was equivocal but suggested a localized hepatic laceration. The patient was discharged but returned three weeks later with ascites and mild pain in the right upper abdominal quadrant. Hepatobiliary imaging identified a large bile leak originating from the porta hepatis but showed no evidence of parenchymal injury. No hepatic injury was found at surgery, but a laceration of the right hepatic duct was identified. Hepatobiliary imaging is the procedure of choice in diagnosing bile leaks from the extrahepatic biliary system.

ISSN:0363-9762    

出版商:OVID    

年代:1987

数据来源: OVID

摘要:

Thirty-one patients suspected of acute cholecystitis were studied prospectively using hepatobiliary imaging in conjunction with intravenous morphine. If persistent nonvisualization of the gallbladder occurred post-morphine, delayed 4 hour imaging was performed. Intravenous morphine correctly diagnosed acute cholecystitis in 94% of cases. Through the use of intravenous morphine, imaging time can be decreased from 4 to 1.5 hours.

ISSN:0363-9762    

出版商:OVID    

年代:1987

数据来源: OVID

摘要:

A Tc-99m albumin colloid (Tc-AC) kit has been introduced as an alternative to Tc-99m sulfur colloid (Tc-SC) for liver-spleen imaging. Since there is no need for boiling, the use of Tc-AC reduces preparation time and manipulation. Tc-SC is one of the most commonly used radiopharmaceuticals for the labeling of solid-phase markers in gastric emptying studies. In vitro studies were performed to evaluate the labeling efficiency and stability in hydrochloric acid and in human gastric juice of intracellularly labeled chicken liver and scrambled eggs labeled with Tc-SC and Tc-AC. Gastric emptying studies also were performed on 20 healthy volunteers with both Tc-SC and Tc-AC labeled scrambled egg sandwiches. There was no significant difference between Tc-SC and Tc-AC in the labeling efficiency of chicken liver (98% ± 1% for Tc-SC, 96% ± 2% for Tc-AC) and scrambled eggs (92% ± 2% for Tc-SC, 91% ± 3% for Tc-AC). However, both Tc-SC and Tc-AC labeled scrambled eggs showed a lower stability than chicken liver, particularly in human gastric juice. Gastric emptying curves from both meals in 20 normal subjects were also similar, with a mean half-emptying time of 85 ± 13 minutes and 87 ± 16 minutes for the meals containing Tc- SC and Tc-AC respectively. Tc-AC is a reliable alternative to Tc-SC as a radiotracer for solid-phase gastric emptying studies.

ISSN:0363-9762    

出版商:OVID    

年代:1987

数据来源: OVID

摘要:

Radioiodinated I-123 metaiodobenzylguanidine (MIBG) has been used for diagnostic purposes for detection of apudomas. In this paper normal physiological uptake of I-123 MIBG by the uterus during the menstrual phase of the uterine cycle is reported. It is likely that I-123 MIBG can be used to evaluate some of the problems in this context.

ISSN:0363-9762    

出版商:OVID    

年代:1987

数据来源: OVID

摘要:

Six cases of osteomyelitis due toCoccidioides immitisare presented. The cases reported demonstrate the importance of performing both bone and gallium imaging to avoid missing the osseous coccidioidal lesions.

ISSN:0363-9762    

出版商:OVID    

年代:1987

数据来源: OVID

摘要:

The use of a simple, noninvasive, isotope scanning technique for the determination of relative portal blood flow and detection of portal hypertension is described. Using this technique the presence of portal hypertension was demonstrated in seven of nine patients known to have elevated portal venous pressure. By contrast, esophageal varices were demonstrated in only five of these patients, illustrating the potential value of the method. Furthermore, this technique has been adapted to the study of portal blood flow in patients with myeloproliferative disorders with splenomegaly but without disturbances in hepatic architecture. Results demonstrate that the high relative splenic flow resulting from the presence of splenomegaly may in turn be associated with elevated relative portal blood flow and portal hypertension. The theoretic reasons for the development of flow-related portal hypertension and its relationship to splenic blood flow are discussed.

ISSN:0363-9762    

出版商:OVID    

年代:1987

数据来源: OVID

摘要:

A false-positive scan for testicular torsion can be obtained in a scrotal scan when either a hernia or hydrocele overlies the testicle. The case of a patient in whom a false-positive scan was avoided by the use of a caudal view is reported.

ISSN:0363-9762    

出版商:OVID    

年代:1987

数据来源: OVID

摘要:

Dual isotope TI-201/Tc-99m subtraction is a useful technique for localization of abnormal parathyroid glands. A case of tomographic localization of nonsubtracted TI-201 to a mediastinal parathyroid is reported and the possible benefit of this method discussed.

ISSN:0363-9762    

出版商:OVID    

年代:1987

数据来源: OVID

摘要:

The authors' experience with salivary gland imaging in patients with Warthin's tumor was reviewed and the scans correlated with the pathologic findings of each tumor in an attempt to explain the scintigraphic variants found. Most Warthin's tumors show increased perfusion on imaging. The predischarge static images have a low sensitivity, detecting only 33% of the tumors. Warthin's tumors may appear hot, warm, or cold on the predischarge images but invariably become hot in the postdischarge study, for a 100% sensitivity. Many tumors reveal internal warm or cold areas. These focal defects correlate well with the presence of intratumoral cysts. The presence of these mixed lesions should not lead the physician away from the diagnosis of Warthin's tumor.

ISSN:0363-9762    

出版商:OVID    

年代:1987

数据来源: OVID

摘要:

Bone scintigraphy is a sensitive imaging modality for detecting early lesions and polyostotic involvement in fibrous dysplasia. Common findings include multiple areas of focal uptake that are often unilateral and typically involve the ribs, tibia, femur, and craniofacial bones. A knowledge of various skeletal manifestations of fibrous dysplasia is helpful to distinguish it from Paget's disease, osteoblastic metastasis, and fractures. Several recent cases representing varying involvement of fibrous dysplasia are presented and the literature is reviewed.

ISSN:0363-9762    

出版商:OVID    

年代:1987

数据来源: OVID