Abstract：
AIM:To compare assessment by MR excretory urography (MREU), Doppler ultrasound and isotope renography of women with symptomatic hydronephrosis in pregnancy and to define its cause. MATERIALS AND METHODS:Eleven women at 19-34 weeks of gestation were studied prospectively with gadolinium-enhanced breath-hold gradient echo MREU and transabdominal Doppler ultrasound compared with a 'gold standard' of isotope renography employing frusemide challenge. All studies were performed within 24 h, were reported independently in a blinded fashion and employed clearly defined criteria. Obstetric and infant outcomes were obtained. RESULTS:There were no adverse reactions to gadolinium administration in pregnancy and no adverse obstetric or infant outcomes. Three of the 11 women were unable to tolerate the complete MREU protocol. Ultrasound indices could not be used to predict ureteric obstruction as shown by isotope renography. MREU agreed with renographic findings in five of the six cases with obstruction and in two without obstruction. MREU directly demonstrated hydronephrosis to result from extrinsic compression of the ureter between the gravid uterus and iliopsoas muscle. CONCLUSION:MR excretory urography is a promising technique which affords equivalent functional and additional anatomical information to isotope renography. It is more accurate than Doppler ultrasound in the assessment of ureteric obstruction in pregnancy.Spencer, J. A. (2000). Clinical Radiology55, 446-453.
journal_name
Clin Radioljournal_title
Clinical radiologyauthors
Spencer JA,Tomlinson AJ,Weston MJ,Lloyd SNdoi
10.1053/crad.2000.0443subject
Has Abstractpub_date
2000-06-01 00:00:00pages
446-53issue
6eissn
0009-9260issn
1365-229Xpii
S0009-9260(00)90443-4journal_volume
55pub_type
杂志文章abstract：:Between January 1949 and June 1955 a clinical trial was held in which patients with operable breast carcinoma were subjected to a radical mastectomy and then randomised to either have immediate post-operative radiotherapy (radiated group) or delayed radiotherapy on recurrence (watched group). Data relating to the 1461...
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