Abstract:
OBJECTIVE:This study was to evaluate the predictive value of the uterine cervix tissue with the use of quantitative ultrasound gray level analysis for preterm delivery. STUDY DESIGN:Sixty-eight patients with preterm labor between 20 and 35 weeks of gestation were included. When two-dimensional transvaginal ultrasound measurement of cervical length was completed, a region of interest of constant size was defined in the midsection of the posterior wall, and the tissue-specific gray scale was determined. Preterm delivery of <37 weeks of gestation was sought. RESULTS:Twenty-eight patients (41.2%) were delivered preterm. The risk for preterm delivery was increased significantly in patients with cervical length of =2.5 cm (odds ratio, 7.67; 95% CI, 2.4-24.45), with Bishop score of >/=4 (odds ratio, 3.44; 95% CI, 1.21-9.75), and with decreased mean gray scale value (odds ratio, 12.13; 95% CI, 3.69-39.88). Parity and uterine contractions were not significant as predictors for preterm delivery, although the risk for preterm delivery increased with higher parity (odds ratio, 1.8; 95% CI, 0.68-4.79). The risk for preterm delivery remained nearly the same by uterine contractions (odds ratio, 0.92; 95% CI, 0.28-3.01). A mean scale value of =6.54 had the best cutoff value for the prediction of preterm delivery. For preterm delivery, a mean gray value =6.54 had a sensitivity of 82.1%, a specificity of 72.5%, a positive predictive value of 67.6%, and a negative predictive value 85.3%. Multiple logistic regression analysis indicated that, even when other variables are considered simultaneously, the mean gray scale value is the single best predictor of preterm delivery. CONCLUSION:Quantitative ultrasound tissue characterization of the uterine cervix predicts premature delivery and provides additional information in the prediction of potential premature delivery.
journal_name
Am J Obstet Gynecoljournal_title
American journal of obstetrics and gynecologyauthors
Tekesin I,Hellmeyer L,Heller G,Römer A,Kühnert M,Schmidt Sdoi
10.1067/s0002-9378(03)00488-5subject
Has Abstractpub_date
2003-08-01 00:00:00pages
532-9issue
2eissn
0002-9378issn
1097-6868pii
S0002937803004885journal_volume
189pub_type
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journal_title:American journal of obstetrics and gynecology
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doi:10.1016/s0002-9378(87)80261-2
更新日期:1987-12-01 00:00:00
abstract::In order to study the hormonal characteristics of human prolactin-secreting pituitary adenomas, in vitro monolayer and suspension cultures from human pituitary glands were established. Optimal conditions for cultures included enzymatic dispersion into viable single-cell suspensions with the use of 1% collagenase in ph...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(80)90084-8
更新日期:1980-11-15 00:00:00
abstract::Multihole needle biopsy has been performed on 166 patients. Commercially available 22-, 20-, 18-, and 16-gauge hypodermic needles (40 to 75 mm in length) are prepared with three sharp-edged holes around the distal part of the needle, allowing aspiration of 3 to 6 ml or more of tissue, for both histologic and cytologic...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(85)90427-2
更新日期:1985-01-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to describe the outcome of peripartum cardiomyopathy in patients cared for in a community hospital. STUDY DESIGN:The cases of peripartum cardiomyopathy treated at Central Baptist Hospital in Lexington, Kentucky, from January 1, 1992, to December 31, 1998, were reviewed. RESULTS...
journal_title:American journal of obstetrics and gynecology
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更新日期:2000-05-01 00:00:00
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journal_title:American journal of obstetrics and gynecology
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更新日期:2006-07-01 00:00:00
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journal_title:American journal of obstetrics and gynecology
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doi:10.1016/0002-9378(81)90952-2
更新日期:1981-04-15 00:00:00
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journal_title:American journal of obstetrics and gynecology
pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:1993-10-01 00:00:00
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journal_title:American journal of obstetrics and gynecology
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更新日期:1983-04-01 00:00:00
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journal_title:American journal of obstetrics and gynecology
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更新日期:1981-12-15 00:00:00
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journal_title:American journal of obstetrics and gynecology
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更新日期:1985-07-15 00:00:00
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journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1067/mob.2001.113129
更新日期:2001-05-01 00:00:00
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journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
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更新日期:1981-11-15 00:00:00
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journal_title:American journal of obstetrics and gynecology
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更新日期:2012-04-01 00:00:00
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journal_title:American journal of obstetrics and gynecology
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更新日期:1989-04-01 00:00:00
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journal_title:American journal of obstetrics and gynecology
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更新日期:1987-07-01 00:00:00
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journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(80)90004-6
更新日期:1980-09-01 00:00:00
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journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2016.09.072
更新日期:2017-01-01 00:00:00
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journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章,随机对照试验
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更新日期:2009-05-01 00:00:00
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journal_title:American journal of obstetrics and gynecology
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doi:
更新日期:1983-11-01 00:00:00
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journal_title:American journal of obstetrics and gynecology
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更新日期:1979-07-01 00:00:00
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journal_title:American journal of obstetrics and gynecology
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更新日期:2006-02-01 00:00:00
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journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2009.01.014
更新日期:2009-06-01 00:00:00
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journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
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更新日期:2016-03-01 00:00:00
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journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
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更新日期:2014-10-01 00:00:00
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journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
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更新日期:2012-02-01 00:00:00
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journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
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更新日期:2004-12-01 00:00:00
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journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
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更新日期:1984-03-15 00:00:00
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journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0002-9378(16)33032-0
更新日期:1979-06-01 00:00:00
abstract::Unrecognized assay drift that may occur during low-volume (fewer than 500 specimens per week) maternal serum alpha-fetoprotein testing could result in either underestimation or overestimation of the number of pregnant women who are at increased risk of fetal malformations and genetic anomalies. Quality control softwar...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
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更新日期:1991-03-01 00:00:00
abstract::The effect of an intravenous bolus of 25 mg of conjugated estrogen (Premarin) on vaginal blood flow in seven surgically menopausal women was measured by a thermal conductance probe. Electrical power (0.8 W) was supplied to a resistance wire incorporated in the surface of the probe, and its surface temperature was moni...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(82)90075-8
更新日期:1982-06-15 00:00:00