摘要:

AbstractIn 51 cases with prostatic cancer, 88 with prostatic hypertrophy, 109 with prostatitis, and 174 normal subjects, the following five parameters were calculated from prostatic ultrasonograms scanned transrectally; prostatic weight (W), presumed circle area ratio (PCAR), anteroposterior diameterltransverse diameter (ATR), asymmetry index (ASI), and dissimilarity index (DSI). The W and PCAR were higher in cancer and hypertrophy than in prostatitis and normal subjects. The ATR and AS1 were higher in cancer. The DSI was lower in hypertrophy. A canonical discriminant analysis using these five parameters disclosed two canonical variates that were useful to separate the disease entities: one separated cancer and hypertrophy from prostatitis and normal subjects, and the other separated cancer from hypertrophy. The coefficients of these variates indicated that cancer was separated from prostatitis and normal subjects by increases in W and ATR and from hypertrophy by the greater effect of increases in ATR (as compared to PCAR) and the small increases in W.

ISSN:0091-2751    

DOI:10.1002/jcu.1870140702

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1986

数据来源: WILEY

摘要:

AbstractThe incidence of cysts in pregnancy was established with ultrasound. In 3,330 pregnant patients who underwent sonography, 38 adnexal cystic lesions (1.14%) were found. All but two cysts were discovered before 16 weeks. Follow‐up showed that the majority of the cystic lesions resolved spontaneously; these were presumed to represent corpus luteum cysts. Five patients underwent surgery because of persistent cystic lesions; a mucinous cystadenoma, a benign cystic teratoma, a paraovarian cyst, an inclusion cyst, and a tuboovarian abscess were found. Septations and echogenic material were seen within the cystic teratoma and the tuboovarian abscess but the sonographic features of the other operated lesions were identical to those seen in the corpus luteum cyst

ISSN:0091-2751    

DOI:10.1002/jcu.1870140703

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1986

数据来源: WILEY

摘要:

AbstractWe have studied real‐time sonograms of 11 surgically proven benign mediastinal teratomas. Eight cystic teratomas were sonographically visualized as various kinds of masses: four complex, two solid, and two cystic. The echo patterns of cystic teratomas were determined by the serous or nonserous nature of the cysts. In the presence of serous fluid, the tumor was visualized as a cystic mass. If, on the other hand, the cyst of the tumor was nonserous or was sebaceous, it appeared as a solid or complex tumor. The remaining three solid teratomas, which had some small cysts, appeared as complex tumor

ISSN:0091-2751    

DOI:10.1002/jcu.1870140704

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1986

数据来源: WILEY

摘要:

AbstractUltrasound B‐scan images of the thyroid obtained from 10 patients with Hashimoto disease were digitized and processed by a computer method of image analysis that segments complex B‐scan images into regions of homogeneous texture. The method was first applied to B‐scan images of the normal thyroid and it consistently classified the normal tissue into a unique region. When applied to Hashimoto disease B‐scan images, the same method segmented the thyroid into two regions. Detailed analysis of these regions revealed that their gray‐level histograms were very different from that of the normal thyroid in eight cases. In two cases the histogram of one of the regions was similar to that of the previous eight cases, whereas the histogram and the tissue of the other region were similar to those of the normal tissue. This paper shows how these results can be interpreted according to the natural history of the Hashimot

ISSN:0091-2751    

DOI:10.1002/jcu.1870140705

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1986

数据来源: WILEY

摘要:

AbstractSonography was able to suggest a diagnosis of uterine rupture by demonstrating intra‐ or extraperitoneal hematoma in the correct clinical setting. A pelvic abscess complicating a uterine rupture was seen in one case. Previous uterine scar, use of prostaglandins for induction of labor, trauma with a currette, and cornual pregnancy were the implicated etiologic factors. Although the rupture site was never directly visualized by sonography, the combination of sonographic and clinical findings was strongly suggestive of the correct diagnosi

ISSN:0091-2751    

DOI:10.1002/jcu.1870140706

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1986

数据来源: WILEY

摘要:

AbstractBecause of overlying attenuating structures, sonographic imaging of the left adrenal gland is often difficult, especially in obese or pediatric patients. In a series of 50 consecutive patients, the left adrenal glands were examined in both the conventional right posterior oblique (RF'O) position and using the new cava‐suprarenal line (CSL) position. The CSL position permitted identification of the left adrenal gland in 90% of the patients; in contrast, the gland could be demonstrated in only 60% of the patients using the conventional RPO position. With the CSL position, the left adrenal gland could be imaged in half the time required with the conventional RPO position. The improved ability to demonstrate the left adrenal gland as well as the reduction in the required scanning time was particularly marked in obese and pediatric patient

ISSN:0091-2751    

DOI:10.1002/jcu.1870140707

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1986

数据来源: WILEY

摘要:

AbstractThe acardiac anomaly is a rare condition found only in monozygotic multiple pregnancies, usually twins. We present a review of the pathophysiology of acardia and a case report. Twin embryonic membrane formation is discussed, since a conceptual understanding of the subject is necessary for the early recognition of this and other evere anomalies. Emphasis is placed on close sonographic monitoring to insure the best chance of survival of the normal twin, who may die of heart failure if delivery is not properly timed.

ISSN:0091-2751    

DOI:10.1002/jcu.1870140708

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1986

数据来源: WILEY

ISSN:0091-2751    

DOI:10.1002/jcu.1870140709

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1986

数据来源: WILEY

ISSN:0091-2751    

DOI:10.1002/jcu.1870140710

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1986

数据来源: WILEY

ISSN:0091-2751    

DOI:10.1002/jcu.1870140711

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1986

数据来源: WILEY