Abstract:
AIM:To develop a magnetic resonance (MR)-visible mesh using iron oxides and prove visibility. METHODS:In a phantom study, a suitable iron oxide, Fe3O4 [iron(II,III) oxide] and FeOOH [iron(III) oxide-hydroxide], concentration was determined using relaxometric MR measurements of the transverse relaxation rates R2 and R2*. Next, a nonabsorbable mesh was designed from the MR-visible threads woven into a polypropylene mesh. The mesh was implanted into a fresh female cadaver via the transobturator route, and MR visibility was assessed with various MR pulse sequences in a clinical 3-tesla system. RESULTS:Optimal contrast was achieved with Fe3O4 at 0.2 weight-% in all imaging sequences, and the optimal contrast was achieved in a 3D spoiled gradient-echo (fast low-angle shot) acquisition. In this concentration range the apparent transverse relaxation rate R2* is below 10 ms. The mesh was visible in the cadaver on T1-weighted 3D spoiled gradient-echo images and T1-weighted fast spin-echo images. CONCLUSION:Mesh materials can be manufactured to be visible on MR with a negative contrast. Fe3O4 meshes could simplify follow-up examinations and help diagnose origins of postsurgical lesions after urogynecological procedures with mesh material.
journal_name
Gynecol Obstet Investjournal_title
Gynecologic and obstetric investigationauthors
Brocker KA,Lippus F,Alt CD,Hallscheidt P,Zsolt F,Soljanik I,Lenz F,Bock M,Sohn Cdoi
10.1159/000366442subject
Has Abstractpub_date
2015-01-01 00:00:00pages
101-6issue
2eissn
0378-7346issn
1423-002Xpii
000366442journal_volume
79pub_type
杂志文章abstract::We developed a model in which full-thickness human genital mucous membranes (fallopian tubes, endometrium) were heterotopically xenografted into the skin of severe combined immunodeficient (SCID) mice. The transplanted tissue retained its human phenotype for at least 4 weeks including the glandular epithelium, the lam...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000292314
更新日期:1995-01-01 00:00:00
abstract:OBJECTIVE:To compare the qualitative (QL) and quantitative (QN) levels of betahCG in cervicovaginal secretions as predictors of preterm birth. METHODS:The study included 100 women. QL and QN assays were done with velocit kit and ELISA, respectively. RESULTS:A positive QL assay had sensitivity of 78%, specificity 95%,...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000189917
更新日期:2009-01-01 00:00:00
abstract::A factor present in the serum of pregnant women is able to inhibit nonspecifically a cellular cytotoxicity reaction. This glycoprotein called P4, is an alpha-globulin whose molecular weight is 200,000 daltons bound to albumin. Its isoelectric point is 4.1. By its various characteristics, P4 seems different from other ...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000298991
更新日期:1985-01-01 00:00:00
abstract::Minimal deviation adenocarcinoma (MDA) is a very rare variant of cervical adenocarcinoma, this pathological entity is composed of mucinous very-well-differentiated glands deeply invading cervical stroma, and often surrounded by a desmoplastic reaction. Despite its benign histological appearance, MDA is typically chara...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000327938
更新日期:2011-01-01 00:00:00
abstract::Previous reports have supported an association between tobacco smoking and cervical neoplasia. Our observations show an association between smoking and a reduction of the numerical densities of Langerhans cells and of helper/inducer T lymphocytes in the squamous epithelia of the transformation zone of the uterine cerv...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000292372
更新日期:1995-01-01 00:00:00
abstract:OBJECTIVE:To clarify the alteration of maternal-fetal mixed lymphocyte reaction (MLR) in intrahepatic cholestasis of pregnancy (ICP). METHODS:Twenty-two patients with intrahepatic cholestasis of pregnancy and 21 normal pregnant women were recruited into the present study. Of patients with ICP, 5 also experienced pregn...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000068381
更新日期:2002-01-01 00:00:00
abstract::Since not all problems in endometriosis can be studied in the human, there is need of an animal model. We transplanted endometrial tissue of the rabbit into the peritoneal cavity and studied the changes after 12 weeks. At that time the endometrial implants in the rabbit had become cystic structures. The macroscopic an...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000293611
更新日期:1989-01-01 00:00:00
abstract::A second pregnancy was successfully achieved by a menopausal women who had previously conceived and delivered an infant using donated oocytes. The same nonanonymous oocyte donor provided the gametes for both procedures. Prior to embryo transfer, the functionally agonadal recipient received exogenous steroid hormone re...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000293009
更新日期:1991-01-01 00:00:00
abstract::We report an extremely rare case of a 50-year-old woman with an adenocarcinoma arising within a urethral diverticulum. She could not be diagnosed correctly before operation and the microscopic pathological examination of the surgical specimen was the only indication showing the cancer origin. ...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000292307
更新日期:1995-01-01 00:00:00
abstract:BACKGROUND/AIMS:To assess whether patients prefer surgery or a pessary as treatment for pelvic organ prolapse (POP). METHODS:A structured interview was performed among treated and untreated women with POP. We conducted fictive scenarios of potential disadvantages of surgery and pessary use. Our main outcome was the wi...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000336634
更新日期:2012-01-01 00:00:00
abstract::The authors compared the serum DHAS and cortisol level in 53 vaginal deliveries with those of 21 caesarean sections prior to the onset of labour at the 28th to 36th weeks. They also compared 18 vaginal deliveries with 16 elective caesarean sections at the 40th week. The serum hormone concentrations were measured in th...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000293314
更新日期:1990-01-01 00:00:00
abstract:BACKGROUND:To identify predictors of paracentesis in women with severe ovarian hyperstimulation syndrome (OHSS). METHODS:In a retrospective cohort study, we assessed patient characteristics and outcome measures of women with severe OHSS Golan grade II/III from 1996 to 2010 using univariate and multivariate analyses wi...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000443829
更新日期:2016-01-01 00:00:00
abstract::Implantation of intrauterine devices (IUDs) is associated with an increased incidence of uterine infection, probably as a result of vaginal bacteria entering the uterus at the time of insertion. To reduce the incidence of IUD-related infections, the incorporation of antimicrobial agents into the tail of the device was...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000010256
更新日期:2000-01-01 00:00:00
abstract::Seventy women requesting first trimester abortion and with amenorrhea of less than 42 days were treated with a single 600-mg dose of mifepristone. Mifepristone is a synthetic 19-norsteroid with strong progesterone receptor antagonist properties. Complete abortion was achieved in 56 women (80%), 2 women (3%) had an inc...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000293291
更新日期:1990-01-01 00:00:00
abstract::This prospective study was designed to determine whether there would be a higher incidence of congenital cardiovascular malformation (CCVM) in pregnant women with certain risk factors. Fetal echocardiography, from second trimester of term, was performed in 1,659 pregnant women with risk factors for CCVMs and 826 pregn...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000291897
更新日期:1996-01-01 00:00:00
abstract::Six cases with a coexistence of endometriosis and genital anomalies among 112 patients with external endometriosis and 90 patients with genital anomaly were detected. Three cases of severe endometriosis associated with uterovaginal duplication, unilateral renal agenesis and ipsilateral blind vagina and the latter in a...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000298899
更新日期:1986-01-01 00:00:00
abstract::To evaluate a new reflectance photometer (Accusport) for blood lactate determination, a prospective non-interventional study was performed on blood obtained from the umbilical cord artery immediately after delivery of the baby in 109 consecutive women. For each sample, the results of cord arterial blood lactate values...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000009919
更新日期:1998-01-01 00:00:00
abstract::A search of the literature has been prepared to determine how oxytocin may affect sexual and reproductive in women. Many animal studies suggest that oxytocin induces a variety of reproductive behaviors, including grooming, sexual arousal, orgasm, gamete transport, nesting, birthing, and specific maternal behaviors suc...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章,评审
doi:10.1159/000292340
更新日期:1995-01-01 00:00:00
abstract:BACKGROUND/AIMS:To determine the clinicopathological characteristics and potentially associated outcomes in patients diagnosed with serous adenocarcinoma of the uterine cervix. METHODS:The records of surgically-treated patients with pathological stage pT1b-2b serous adenocarcinoma were reviewed. RESULTS:Of 12 patient...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章,评审
doi:10.1159/000329319
更新日期:2012-01-01 00:00:00
abstract:INTRODUCTION:Expression of fibroblast activation protein (FAP) has been detected in activated fibroblasts participating in injury response, fibrotic and inflammatory conditions, and tumorigenesis. Human endometrium is equally characterized by rapid tissue remodeling events due to the reproductive tasks comprising the a...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000511439
更新日期:2020-01-01 00:00:00
abstract:OBJECTIVES:The aim of this study is to evaluate oxidative protein damage (OPD) by investigating protein carbonyl (PCO) and nitrotyrosine (NT) levels, oxidative stress by total thiol (T-SH), erythrocyte glutathione (GSH) and nitric oxide (NO) levels in women receiving hormone replacement therapy (HRT). MATERIALS AND ME...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000067718
更新日期:2002-01-01 00:00:00
abstract:BACKGROUND/AIMS:Low molecular weight heparin is recommended for the treatment of venous thromboembolism (VTE) during pregnancy. However, there are few reliable data regarding the safety of therapeutic doses of tinzaparin in this setting. The objective of this study was to assess the safety of once-daily therapeutic dos...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000367846
更新日期:2015-01-01 00:00:00
abstract::The correlation between arousal state and fetal habituation was tested. Four behavioral states were determined according to fetal heart activity and movement pattern in 52 fetuses. Repeated wide low-frequency sound was used as external stimulus. Ceasing of response to 5 consecutive stimuli indicated habituation. The t...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000293315
更新日期:1990-01-01 00:00:00
abstract::The cardiovascular and metabolic responses during acute fetal hypoxia were studied in 7 pregnant sheep near term. Complete reduction of uterine flow (UBF) for 180 s was performed in 13 experiments by inflating a balloon positioned in the maternal aorta. Fetal heart rate (FHR), systolic and diastolic blood pressure (BP...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000299425
更新日期:1983-01-01 00:00:00
abstract:BACKGROUND/AIMS:To evaluate maternal serum transformed alpha-fetoprotein (MSt-AFP) levels, a new molecular conformation of AFP was used in cases of threatened preterm labor (TPL). METHODS:Prospective case-control study. Maternal serum levels of classical AFP and transformed AFP (t-AFP) were compared between 2 groups m...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000233239
更新日期:2009-01-01 00:00:00
abstract::Uterine myoma leading to uremia in young women below 16 years of age is an extremely rare condition. On reviewing the literature we have not been able to find any case similar to the one described below. ...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000293043
更新日期:1991-01-01 00:00:00
abstract:BACKGROUND:Radiation therapy is a mainstay in the treatment of cervical cancer. However, most advanced and metastatic cervical cancers are resistant to radiation therapy because of the presence of cancer stem cells (CSCs). To date, no specific markers were found for cervical CSCs. METHODS:The fraction of CD44+/CD24+ c...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000493129
更新日期:2019-01-01 00:00:00
abstract::Preeclampsia has been linked to increased risk for cardiovascular disease and, more recently, to reduced risk for breast cancer later in life. The altered chronic disease risk associated with prior preeclampsia may reflect underlying metabolic differences. In this case-control study, we examined the metabolic profiles...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000084146
更新日期:2005-01-01 00:00:00
abstract::The aims of the present study were: (a) to examine whether it was possible to measure women's cognitive appraisals hourly during the whole process of labor and delivery, and (b) to explore how the appraisals varied during labor. Measurements from 12 nulliparous women are presented. The findings indicate that it is pos...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000010209
更新日期:2000-01-01 00:00:00
abstract::Two women, one 27 years old (case 1) and the other 20 years old (case 2), were evaluated due to right lower quadrant pain. The lactate dehydrogenase level was increased in case 1 and the dihydroepiandostrone level was increased in both cases. Preoperative transvaginal ultrasonography revealed solid masses, but the tum...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000053009
更新日期:2002-01-01 00:00:00