The myometrial invasion of endometrial cancer was estimated by using intrauterine radial-scan ultrasonography and classified into the following four groups: no myometrial invasion, superficial invasion (below one-third), moderate invasion (above one-third but below two-thirds), and deep invasion (above two-thirds). The myometrial invasions were further examined histologically on the removed uterus. In 26 of 32 cases (81.3%), estimations by intrauterine radial scans agreed with the histologic assessment. In each of the remaining six cases, estimations by radial scans were lower than those by histologic examination.

Female↗

PubMedDate not supplied

Hepatofugal portal flow due to acute cellular rejection.

We describe a case of living donor liver transplantation with hepatofugal portal flow caused by acute cellular rejection. The reversed portal flow was corrected by splenectomy and ligation of the residual collateral veins. Hepatofugal flow causes ischemic damage to the graft, which does not normalize spontaneously. In this particular case, meticulous Doppler ultrasound examination and prompt response to reversed portal flow salvaged the graft.

Adult↗

PubMedDate not supplied

Struma ovarii: appearance on MR images.

BACKGROUND: The purpose of this multi-institutional study was to examine the appearance of struma ovarii on magnetic resonance (MR) images. METHODS: MR images of 12 patients with histologically proven struma ovarii were retrospectively reviewed. All patients underwent T1-weighted and T2-weighted imaging. Contrast-enhanced T1-weighted images with Gd-DTPA were available in 10 patients. The following determinations were made: tumor morphology, signal intensities, contrast-enhancement effects of solid components with Gd-DTPA, and comparison of MR images with resected specimens. RESULTS: All 12 patients had both cystic and solid components, with a multilobulated surface and thickened septa. Signal intensities on T1-weighted images were mainly low, partly intermediate to high, or high, and those on T2-weighted images were mainly high, with different signal intensities. Contrast-enhancement effects were marked or moderate. The contents that showed low signal intensities on T1-weighted images and signal voids or low signal intensities on T2-weighted images were viscid gelatinous materials. CONCLUSIONS: A multicystic tumor with a solid component, a multilobulated surface, and signal intensities that indicate the presence of viscid gelatinous materials appear to be a characteristic MR finding of struma ovarii.

Adult↗

PubMedDate not supplied

Cervical carcinoma: efficacy of thin-section oblique axial T2-weighted images for evaluating parametrial invasion.

BACKGROUND: To investigate the efficacy of thin-section oblique axial T2-weighted images in the assessment of parametrial invasion by cervical carcinoma. METHODS: One hundred parametria of 50 patients with cervical carcinoma were evaluated with pathologic correlation. We compared the sensitivity, specificity, and diagnostic accuracy in the assessment of parametrial invasion by cervical carcinoma between axial T2-weighted images and thin-section oblique axial T2-weighted images. RESULTS: Thin-section oblique axial T2-weighted images provided accurate cross sections of the cervix with excellent detail and detected parametrial invasion more accurately than did axial T2-weighted images showing cross sections of the trunk. Although the sensitivity, specificity, and accuracy for parametrial invasion were 46.4%, 91.7%, and 79.0%, respectively, on axial T2-weighted images, the corresponding values were 67.9%, 97. 2%, and 89.0%, respectively, on thin-section oblique axial T2-weighted images. There were statistically significant differences in the sensitivity (p = 0.014), specificity (p = 0.046), and accuracy (p = 0.002) in detecting parametrial invasion between these two types of images. CONCLUSIONS: Thin-section oblique axial T2-weighted images are useful for the assessment of parametrial invasion by cervical carcinoma.

Adenocarcinoma↗

PubMedDate not supplied

Endometrial carcinoma: dynamic MRI with turbo-FLASH technique.

PURPOSE: Our goal was to investigate the usefulness of dynamic MRI with the turbo-FLASH technique in estimating myometrial invasion by endometrial carcinoma. METHOD: Forty-six patients with endometrial carcinomas were evaluated with pathologic correlation. Dynamic MRI was performed with the rapid administration of Gd-DTPA using the turbo-FLASH technique. RESULTS: The inner muscle layer showed more rapid contrast enhancement effects than the outer muscle layer even after menopause. Contrast-to-noise ratio between the inner muscle layer and endometrial carcinoma was maximum at approximately 50 s after administration of Gd-DTPA. In postmenopausal women, the accuracy in estimating myometrial invasion with T2-weighted images, contrast-enhanced T1-weighted images, and dynamic MRI was 66.7, 77.8, and 92.6%, respectively. CONCLUSION: Dynamic MRI with the turbo-FLASH technique is considered to be a useful imaging method for the estimation of myometrial invasion by endometrial carcinoma, especially in postmenopausal patients.

Adult↗

PubMedDate not supplied

MR appearance of adenomatoid tumor of the uterus.

Reports on the radiological findings of adenomatoid tumor of the uterus are rare, and preoperative diagnosis is very difficult. To our knowledge, there have been no reports concerning the MR findings of adenomatoid tumor of the uterus. We report two cases of uterine adenomatoid tumor that showed the characteristic features of leiomyoma on MR images.

Adenomatoid Tumor↗

PubMedDate not supplied

Clinical outcomes of uterine sarcomas: results from 14 years worth of experience in the Kinki district in Japan (1990-2003).

To review clinical outcomes and therapeutic varieties, we were invited to submit data from the patients who were treated for uterine sarcomas in Japan from 1990 to 2003. Uterine sarcomas were defined as leiomyosarcoma (LMS), endometrial stromal sarcoma (ESS), and carcinosarcoma (CS). Of a total of 97 patients, 36 (37.1%) were diagnosed with LMS of the uterine corpus, 15 (15.5%) with ESS, 46 (47.4%) with CS. Median age at diagnosis was 59 (21-85) years. Clinical stages based on FIGO were 41 (42.3%) with stage I disease, 6 (6.2%) with staged II, 34 (35.1%) with stage III, and 16 (16.5%) with stage IV. The median follow-up period for all patients was 13 (1-108) months and median disease-free period was 9 (0-96) months. The 1-year survival rate and disease-free survival (DFS) rate were calculated in patients with all sarcomas (overall survival [OAS], 61.3%; DFS, 46.6%). Statistical analysis showed that younger age (less than 50 years), early stage (stages I and II), and surgical procedure (extended hysterectomy [EH] and radical hysterectomy [RH]) were associated with significantly better OAS. Histologic types did not affect the survival period. In conclusion, aggressive surgery including EH or RH at the time of initial operation offers the possibility of prolonged survival.

Adult↗

PubMedDate not supplied

Development of a three-dimensional color Doppler system.

An unprecedented assembly of a three-dimensional (3D) color Doppler system was arranged for the purpose of producing and displaying precisely calculated and recorded 3D color flow mapping images of fetal and umbilical vessels. Data accuracy and quality were enhanced by a computer controlled probe positioner. Scanning was across any of three perpendicular planes to collect serial slice images in any position and interval width. The series of parallel images was digitized in a color imaging processor by a 3D reconstruction program. Analyzed data were transferred to work stations for immediate processing into 3D form and display. The resulting 3D display was a solid model image of umbilical vessels which could be rotated in real time. In addition to the clear information about the vessel's structure, hemodynamics were apparent.

Female↗

PubMedDate not supplied

Total hip replacement through self-locking fixation.

Explore the source record for details and available documents.

Animals↗

PubMedDate not supplied

Platelet dysfunction during cardiopulmonary bypass surgery. With special reference to platelet membrane glycoproteins.

Changes in platelet membrane glycoproteins (GPIb, GPIIb/IIIa, and GMP-140) were evaluated using flow cytometry after binding with monoclonal antibodies in 22 adult patients undergoing cardiopulmonary bypass (CPB) surgery. The amount of GPIb on platelets decreased significantly during CPB, reaching a minimum level of 64 +/- 26% of the pre CPB value at 120 min of CPB. There was no significant change in the amount of GPIIb/IIIa on platelets. In accordance with these changes, ristocetin induced agglutination decreased to 56.7 +/- 16.2% of the pre CPB value during CPB. However, there were no significant changes in ADP and collagen induced aggregation throughout the procedure. The number of the activated platelets expressing GMP-140 on their surfaces increased significantly during CPB. There was an upper limit to the amount of GMP-140 expression on each platelet in the circulating blood, suggesting that excessively activated platelets are removed from the circulation. The authors conclude that CPB reduces the amount of GPIb on platelets, which results in platelet dysfunction. In addition, removal of excessively activated platelets from the circulation may lead to thrombocytopenia after CPB.

Adult↗