ISSN:0091-2751    

DOI:10.1002/jcu.1870140502

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

年代:1986

数据来源: WILEY

摘要:

AbstractPrecocious puberty in young girls is defined as the development of secondary sexual characteristics and gonadal growth before 8 years of age. Approximately 60% of isosexual precocious development in girls has no organic cause and is termed idiopathic precocious puberty. Thirteen young girls with idiopathic precocious puberty were treated with LHRH analogue under a well‐established protocol. Pelvic ultrasound was added to the protocol to examine ultrasound's role in supplying a morphologic parameter of suppression of the pubertal process. Initially, 11 patients had ovarian volumes greater than normal, and ovarian cysts measuring 0.5 cm to 4 cm in diameter were identified in seven patients. All 13 patients had enlarged pretreatment uteri greater than 3 cm in length. Eleven of these patients had a pubertal or adult uterine configuration. After 1 year of therapy, 11 patients had normal prepubertal ovarian volumes, and 12 of 13 patients had a decrease in ovarian volume. No demonstrable cysts were present at 1 year. Eleven had a reduction in uterine length. Nine of the 11 patients with a pubertal uterine configuration reverted to a more prepubertal‐like morphology. The sonographic morphologic changes correlated well with laboratory and clinical data indicating suppression of the hypothalamic–pituitary–gonad

ISSN:0091-2751    

DOI:10.1002/jcu.1870140503

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

年代:1986

数据来源: WILEY

摘要:

AbstractUltrasound is the method of choice in the detection and differentiation of solid or cystic masses in the abdomen. The differential diagnosis of anechoic and hypoechoic lesions comprises a large variety of benign and malignant diseases or abnormalities. This paper describes a number of such lesions and, in addition, discusses the possible differential diagnoses so far reported in the literature. An attempt is made to describe the different features of such lesions. Most of them are rare but have to be considered if a lesion of unknown origin or clinical relevance is detected by ultrasound.

ISSN:0091-2751    

DOI:10.1002/jcu.1870140504

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

年代:1986

数据来源: WILEY

摘要:

AbstractIn 39 knees of 38 patients, an ultrasonographic investigation of the patellofemoral space was performed to detect a plica synovialis. By arthroscopic control, we found a sensitivity for the ultrasonographic method of 92% and a specificity of 73%. The method, materials, and results are discussed in this paper.

ISSN:0091-2751    

DOI:10.1002/jcu.1870140505

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

年代:1986

数据来源: WILEY

摘要:

AbstractNeonatal ultrasonography entails potential procedural hazards to the newborn infant. When performing ultrasound studies, the examiner may inadvertently move the endotracheal tube or may facilitate the spread of infection from one baby to another. The examiner should also be aware that the pressure of applying the transducer to the scalp is transmitted to the central nervous system and that the baby may become hypothermic during the procedure. Precautions include minimizing head and neck movement and application of pressure on the fontanel, using prewarmed coupling gel, which is removed after scanning, careful handwashing, and wiping the transducer with 70% isopropyl alcohol or 2% alkalinized glutaraldehyde between studies.

ISSN:0091-2751    

DOI:10.1002/jcu.1870140506

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

年代:1986

数据来源: WILEY

摘要:

AbstractA problem in quantitative two‐dimensional echocardiography is myocardial dropout of still frame images. This study was designed to evaluate the ability of digital averaging to overcome myocardial dropout without distorting quantitative measurements. Forty‐one percent of 80 digitally averaged images were thought to be improved by five independent observers, whereas 78 showed some deterioration. Measurements obtained from processed images were statistically identical (r≥ 0.9) to those from three arithmetically averaged, unprocessed images in 60 patients. Digital averaging can improve image quality without measurement distortion and should facilitate two‐dimensional echocardiographic quant

ISSN:0091-2751    

DOI:10.1002/jcu.1870140507

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.1870140508

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.1870140509

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.1870140510

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.1870140511

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

年代:1986

数据来源: WILEY