Transvaginal and transabdominal sonography: prospective comparison

Transvaginal (TV) and transabdominal (TA) sonography were compared in a prospective study. A total of 230 examinations (126 pelvic, 104 pregnancy) were performed on 215 patients, ranging in age from 14 to 80 years. The improved anatomic detail on TV scans yielded new information in 138 (60%) examina...

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Bibliographic Details
Published in:	Radiology Vol. 168; no. 3; p. 639
Main Authors:	Coleman, B G, Arger, P H, Grumbach, K, Menard, M K, Mintz, M C, Allen, K S, Arenson, R L, Lamon, K A
Format:	Journal Article
Language:	English
Published:	United States 01-09-1988
Subjects:	Adult Female Fetal Diseases - diagnosis Genital Diseases, Female - diagnosis Humans Leiomyoma - diagnosis Menopause Pregnancy Pregnancy Complications - diagnosis Prospective Studies Ultrasonography - methods Uterine Neoplasms - diagnosis Vagina
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Summary:	Transvaginal (TV) and transabdominal (TA) sonography were compared in a prospective study. A total of 230 examinations (126 pelvic, 104 pregnancy) were performed on 215 patients, ranging in age from 14 to 80 years. The improved anatomic detail on TV scans yielded new information in 138 (60%) examinations and better visualization of pelvic structures in 51 (22%) examinations. There was no important difference in diagnostic information provided by the two imaging modalities in 36 (16%) cases, and TV images were worse in five (2%). The clinical diagnosis was altered on the basis of TV sonographic findings in 54 (24%) cases and confirmed with certainty in 166 (72%). Diagnostic problems posed by TA scanning were not resolved by TV scanning in ten (4%) instances. Statistical analysis indicated that TV scanning was significantly better than TA scanning in the visualization of gestational sac contents (P less than .005), detection of fetal heart motion (P less than .001), and evaluation of the endometrial canal in the retroverted or retroflexed uterus (P less than .001). TV scanning was significantly better than TA scanning in visualization of the ovaries in patients with uterine leiomyomas (P less than .005) but not significantly better in peri- and postmenopausal patients (P greater than .05).
ISSN:	0033-8419
DOI:	10.1148/radiology.168.3.3043545