摘要:

Summary:Endovaginal sonography (EVS) and endovaginal color flow doppler (EVCFD) provide reliable, clinically relevant information in first trimester ultrasound diagnosis. The advent of EVS and EVCFD has resulted in earlier and more accurate diagnosis of ectopic pregnancy and embryonic demise. Abnormal endovaginal sonographic features may also be used to predict abnormal outcome in live, otherwise normal appearing embryos. EVS and EVCFD are also helpful in the early diagnosis of gestational trophoblastic disease and fetal anomalies (depending on the developmental stage).

ISSN:0894-8771    

出版商:OVID    

年代:1993

数据来源: OVID

摘要:

Summary:Meningoencephalitis occurs in 25% of newborns with bacterial sepsis due to entrance of bacteria into the central nervous system via the choroid plexus of the lateral ventricle. Structural brain damage from inflammation, edema, and vasculitis may be demonstrated sonographically in young infants, even in the absence of neurological findings. Sonographic findings include increased echogenicity of cortical sulci, widening of the sulcal echoes, and extraaxial fluid collections (due to accumulation of an inflammatory exudate within the sulci and fissures that may result in extraaxial fluid collections); slit-like ventricles initially with diffuse increased parenchymal echogenicity (due to diffuse brain edema and inflammation) or mild to moderate ventricular dilatation (resulting from arachnoiditis, which interferes with cerebrospinal fluid resorption); ventriculitis (manifested by ventricular enlargement, echogenic cerebrospinal fluid secondary to inflammatory cells and debris, and intraventricular septations or bands from glial proliferation that may compartmentalize and cause obstructive hydrocephalus); meningoencephalitis (associated with focal or diffuse, unilateral or bilateral, abnormal parenchymal echogenicity secondary to edema, cerebritis, and/or infarction); abscess formation (well-circumscribed lesions with a thick echogenic wall developing within an echogenic area of cerebritis or infarction); or multicystic encephalomalacia (end-stage result of meningoencephalitis with cerebral necrosis due to vasculitis and hypoxia). Dystrophic calcification is most often associated with cytomegalovirus (CMV), toxoplasmosis, and herpes simplex virus.

ISSN:0894-8771    

出版商:OVID    

年代:1993

数据来源: OVID

摘要:

Summary:The past decade has seen a change in attitude about hip sonography from skepticism to wide acceptance as a standard imaging examination. The infant hip sonogram provides accurate, reliable, and reproducible information in the course of diagnostic evaluation and treatment. Because this method can assess hip instability, acetabular morphology, and efficacy of treatment, it has taken the place of contrast arthrography. Moreover, the hip sonogram is less costly and does not require sedation, ionizing radiation, or arthrotomy. Decisions regarding the need for treatment, confirmation of successful reductions, and understanding of the evolution of acetabular morphology are all facilitated by proper performance and accurate analysis of hip sonography.

ISSN:0894-8771    

出版商:OVID    

年代:1993

数据来源: OVID

ISSN:0894-8771    

出版商:OVID    

年代:1993

数据来源: OVID

ISSN:0894-8771    

出版商:OVID    

年代:1993

数据来源: OVID