摘要:

SummaryUltrasound examination of the breast has recently come to maturity with the availability of high-frequency, hand-held transducers. It is now routinely used in breast imaging centers as an essential complement to physical examination and mammography not only to differentiate cystic from solid masses but also to further characterize solid masses. New diagnostic parameters include the tumor's shape, vascularity, and mobility. Although sonography can detect some carcinomas missed by mammography, its inability to demonstrate microcalcifications and minimal carcinomas and its dependence on operator skill are insurmountable obstacles that prevent its use for cancer screening. New applications of breast ultrasound in cancer management include the refinement of cancer staging through the detection of nonpalpable regional lymph node metastases, the evaluation of response to chemotherapy of locally advanced carcinomas, and the early detection of local recurrences following conservative treatment. Because of its unique real-time capability, sonography is the most accurate and convenient technique for guiding needle biopsy or localization of any nonpalpable breast mass or lymph node visible on sonograms.

ISSN:0894-8771    

出版商:OVID    

年代:1993

数据来源: OVID

摘要:

SummaryA review of transvaginally guided punctures is presented. The aim of these procedures is to perform the various treatments using the guidance of a high resolution ultrasound image generated by the high frequency probes of the vaginal transducer. The goal is to avoid a more extensive risky surgical intervention and still achieve a similar outcome. The technique of the transvaginally guided punctures is described using the manual needle placement as well as the automated spring loaded puncture device which is mated to the handle of the transvaginal probe. Each puncture procedure is described in detail, however special attention is given to the multifetal pregnancy reductions and the puncture treatment of various ectopic gestations.

ISSN:0894-8771    

出版商:OVID    

年代:1993

数据来源: OVID

摘要:

SummaryPelvic sonography is usually the initial modality used to evaluate suspected pelvic disorders. This report describes the spectrum of developmental and acquired abnormalities in the female pediatric pelvis and their appearance at sonography.

ISSN:0894-8771    

出版商:OVID    

年代:1993

数据来源: OVID