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uterine Doppler ultrasound

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https://www.readbyqxmd.com/read/29136193/early-first-trimester-uteroplacental-flow-and-the-progressive-disintegration-of-spiral-artery-plugs-new-insights-from-contrast-enhanced-ultrasound-and-tissue-histopathology
#1
V H J Roberts, T K Morgan, P Bednarek, M Morita, G J Burton, J O Lo, A E Frias
STUDY QUESTION: Does the use of a vascular contrast agent facilitate earlier detection of maternal flow to the placental intervillous space (IVS) in the first trimester of pregnancy? SUMMARY ANSWER: Microvascular filling of the IVS was demonstrated by contrast-enhanced ultrasound from 6 weeks of gestation onwards, earlier than previously believed. WHAT IS KNOWN ALREADY: During placental establishment and remodeling of maternal spiral arteries, endovascular trophoblast cells invade and accumulate in the lumen of these vessels to form 'trophoblast plugs'...
November 10, 2017: Human Reproduction
https://www.readbyqxmd.com/read/29135072/measuring-human-placental-blood-flow-with-multidelay-3d-grase-pseudocontinuous-arterial-spin-labeling-at-3t
#2
Xingfeng Shao, Dapeng Liu, Thomas Martin, Teresa Chanlaw, Sherin U Devaskar, Carla Janzen, Aisling M Murphy, Daniel Margolis, Kyunghyun Sung, Danny J J Wang
BACKGROUND: Placenta influences the health of both a woman and her fetus during pregnancy. Maternal blood supply to placenta can be measured noninvasively using arterial spin labeling (ASL). PURPOSE: To present a multidelay pseudocontinuous arterial spin labeling (pCASL) combined with a fast 3D inner-volume gradient- and spin-echo (GRASE) imaging technique to simultaneously measure placental blood flow (PBF) and arterial transit time (ATT), and to study PBF and ATT evolution with gestational age during the second trimester...
November 14, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29124818/diagnosis-and-management-of-patients-with-enhanced-myometrial-vascularity-associated-with-retained-products-of-conception
#3
Yvette S Groszmann, Amie Lynn Healy Murphy, Beryl R Benacerraf
OBJECTIVES: We performed this study to assess the complication rate, including the estimated amount of blood loss, in patients who underwent dilation and curettage for treatment of retained products of conception with markedly enhanced myometrial vascularity mimicking arteriovenous malformations. METHODS: This is a retrospective medical records review study of patients with retained products of conception with enhanced myometrial vascularity presenting to our ultrasound unit between August 1, 2015 and August 1, 2017...
November 10, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29073540/uterine-endometrial-vascularization-during-ovarian-follicular-growth-in-llamas-the-effect-of-estradiol-plasma-concentration
#4
Mauricio Silva, Felipe Urra, Marcelo Ratto
The aim of this study was to evaluated changes in endometrial vascularization area (EVA) between the left and right uterine horn: a) during the ovarian follicular growth in intact llamas, and b) after exogenous estradiol administration of estradiol benzoate in ovariectomized (OVX) llamas. In experiment 1 follicle wave emergence was synchronized (n = 5 llamas) by follicle ablation (Day 0). Females were examined every other day from Day 1 to Day 27, using B mode ultrasonography to evaluate dominant follicle growth profile...
October 17, 2017: Theriogenology
https://www.readbyqxmd.com/read/29064795/the-impact-of-emergent-infections-on-the-fetal-state
#5
Liudmyla A Vygivska, Iryna O Tuchkina, Violetta B Kalnytska
THE AIM: To study the impact of emergent infections (human herpesvirus type 6) on the fetal state. MATERIALS AND METHODS: The study involved examination of 90 pregnant women in the 2nd and 3rd trimesters of gestation (Group 1 (25 pregnant) consisted of patients with a viral infection, CMV carriers, Group 2 (25 pregnant) included women with a viral infection, herpes simplex virus types 1/2, Group 3 amounted for 20 patients with a viral infection, herpes simplex virus type 6, Group 4 comprised 20 patients with normal pregnancy and no signs of infection...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29042974/curative-effect-of-laparoscopic-hysterectomy-for-uterine-fibroids-and-its-impact-on-ovarian-blood-supply
#6
Xing Wang, Li Lv, Zhiyong Cheng, Xuewu Zhou
This study evaluates the curative effects laparo-scopic hysterectomies performed to treat uterine fibroids and determined the impact of the procedures on ovarian blood supply. A total of 124 patients with uterine fibroids admitted and treated in our hospital from December 2014 to December 2015 participated in the study. Two groups of 62 patients each were formed according to different operating plans; one group of patients underwent abdominal (open) panhysterectomy and were set as the control group; with the other group of patients were treated with laparoscopic hysterectomy and were set as the observation group...
October 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28983163/angioleiomyoma-of-uterus-masquerading-as-malignant-ovarian-tumor
#7
Sweta Singh, Monalisha Naik, Narbadyswari Deep Bag, Susama Patra
Uterine angioleiomyoma is rare. A 40-year-old nulliparous woman presented with heavy menstrual bleeding (HMB) for the past 2 years and mass per abdomen with severe dysmenorrhea for three cycles. She had received 8 units of packed cell transfusion outside. Clinical examination revealed a huge 32-week-sized abdominopelvic mass with irregular margins. Ultrasonography (USG) of the abdomen and pelvis showed a large solid cystic mass on the right side of the abdomen with a well-defined hypoechoeic rounded lesion of size 5...
July 2017: Journal of Mid-life Health
https://www.readbyqxmd.com/read/28960414/intra-and-inter-observer-reproducibility-of-third-trimester-uterine-artery-pulsatility-index
#8
Laura Marchi, Claudia Gaini, Chiara Franchi, Federico Mecacci, Caterina Bilardo, Lucia Pasquini
OBJECTIVES: The primary aim of the study was to investigate intra- and inter-observer reproducibility of Uterine Artery (UtA) Pulsatility Index (PI) in the third trimester of pregnancy. The secondary aim of the study was to examine whether high maternal Body Mass Index (BMI) or gestational age (GA) influence the reliability of this measurement. METHODS: Singleton pregnancies in women with known BMI were recruited between 30(+0) and 40(+0) weeks. UtA PI Doppler measurements were performed prospectively, independently and blindly by two Fetal Medicine Foundation accredited operators...
September 27, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/28950833/alphavbeta3-integrin-expression-within-uterine-endometrium-in-unexplained-infertility-a-prospective-cohort-study
#9
Ahmed Elnaggar, Amr H Farag, Mohamed E Gaber, Mohamed Abdel Hafeez, Mohamed S Ali, Alaa M Atef
BACKGROUND: Implantation defect is one of these contributing factors for unexplained infertility. In the mid-luteal phase, when implantation is expected to happen, Integrins expression is remarkably increased. So, Integrins could potentially serve as markers for the frame of the window of implantation. αVβ3 integrin could have a role as a potential receptor for embryonic attachment. The aim of the current study is to investigate whether the women with unexplained infertility have a pattern of expression of endometrial αvβ3 integrin that could differ from those who have normal fertility or not...
September 26, 2017: BMC Women's Health
https://www.readbyqxmd.com/read/28942476/predicting-early-pregnancy-in-egyptian-buffalo-cows-via-measuring-uterine-and-luteal-blood-flows-and-serum-and-saliva-progesterone
#10
Mohamed E Lasheen, Hussein M Badr, Mohamed M M Kandiel, Amal M Abo El-Maaty, Haney Samir, Mohamed Farouk, Mohamed H Eldawy
Various methods are being employed to detect early pregnancy in domestic animals. This study aimed to predict early pregnancy in buffaloes via measuring the corpus luteum (CL) diameter, the luteal blood flow (LBF) area, the uterine blood flow (UBF) vascularization area, and progesterones in saliva and serum for non-pregnant (NPBs, N = 12) and pregnant (PBs, N = 12) buffaloes. The results revealed that the CL diameter and the luteal color blood flow blue and red (P = 0.0001) areas of the pregnant animals kept increasing from day 1 to day 35 of the gestation period, but it decreased in NPBs on day 21 after reaching a peak from ovulation to day 18...
September 23, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28934813/postpartum-retained-products-of-conception-a-novel-approach-to-follow-up-and-early-diagnosis
#11
Noam Smorgick, Ayala Krakov, Ron Maymon, Moshe Betser, Josef Tovbin, Moty Pansky
Purpose To investigate whether ultrasound follow-up for the detection of postpartum retained products of conception (RPOC) in women considered at risk for this condition may allow for early diagnosis. Methods Parturients at risk for RPOC underwent an ultrasound exam on the second postpartum day. Based on the ultrasound findings, women were either: (1) discharged to routine postpartum care in cases of normal scans, (2) invited for follow-up in cases of abnormal scans. We retrospectively analyzed the rates of women requiring uterine evacuation due to persistent abnormal scans...
September 21, 2017: Ultraschall in der Medizin
https://www.readbyqxmd.com/read/28930821/sonographic-image-of-cervix-epithelioid-trophoblastic-tumor-coexisting-with-mucinous-adenocarcinoma-in-a-postmenopausal-woman-a-case-report
#12
Yi Zhu, Guo-Nan Zhang, Rui-Bo Zhang, Yu Shi, Deng-Feng Wang, Rong He
RATIONALE: Epithelioid trophoblastic tumor (ETT) is a distinctive but rare gestational trophoblastic neoplasia (GTN) composed of chorionic-type intermediate trophoblast cells. Approximately 50% ETT arose from the uterine cervix or lower uterine segment following a previous pregnancy with vaginal bleeding. With its unusual ability to simulate an invasive epithelioid neoplasm, ETT frequently poses a diagnostic challenge, especially involving the uterine cervix. PATIENT CONCERNS: We herein report the case of a 60-year-old female with persistent vaginal bleeding and middle-level elevation of serum human chorionic gonadotropin (hCG)...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28884300/what-every-radiologist-should-know-about-adnexal-torsion
#13
Guillaume Ssi-Yan-Kai, Anne-Laure Rivain, Caroline Trichot, Marie-Chantal Morcelet, Sophie Prevot, Xavier Deffieux, Jocelyne De Laveaucoupet
Adnexal torsion is the fifth most common gynecologic surgical emergency, requiring clinician and radiologist awareness. It involves the rotation of the ovarian tissue on its vascular pedicle leading to stromal edema, hemorrhagic infarction, and necrosis of the adnexal structures with the subsequent sequelae. Expedient diagnosis poses a difficult challenge because the clinical presentation is variable and often misleading. Adnexal torsion can mimic malignancy as it can take a subacute, intermittent, or chronic course, and thereby can be complicated to diagnose...
September 7, 2017: Emergency Radiology
https://www.readbyqxmd.com/read/28868250/the-relationship-between-uterine-artery-two-dimensional-color-doppler-measurement-and-pregnancy-outcome-a-prospective-observational-study
#14
Sudha Prasad, Ritu Goyal, Yogesh Kumar, Poonam Nayar, Supriya Hajela, Aswathy Kumaran, Rajesh Vairagi, Shalini Chauhan
BACKGROUND: The purpose of the study was to evaluate the role of uterine blood flow parameters measured by uterine artery two-dimensional (2D)-power color doppler (PCD) ultrasound in predicting fertility outcomes in women undergoing IVF-ET cycles. METHODS: In this prospective observational study, a total of 188 infertile women who underwent IVF-ET cycles were investigated. Uterine artery 2D-PD measurements were taken during early follicular phase and on day of trigger...
April 2017: Journal of Reproduction & Infertility
https://www.readbyqxmd.com/read/28835939/accuracy-of-color-doppler-ultrasonography-and-magnetic-resonance-imaging-in-diagnosis-of-placenta-accreta-a-survey-of-82-cases
#15
Sedigheh Ayati, Leila Leila, Masoud Pezeshkirad, Farokh Seilanian Toosi, Sirous Nekooei, Mohammad Taghi Shakeri, Mansoureh Sadat Golmohammadi
BACKGROUND: Placenta adhesive disorder (PAD) is one of the most common causes of postpartum hemorrhage and peripartum hysterectomy. The main risk factors are placenta previa and prior uterine surgery such as cesarean section. Diagnosis of placenta adhesive disorders can lead to a decrease of maternal mortality and morbidities. OBJECTIVE: The purpose of this study was to compare the accuracy of color Doppler ultrasonography and magnetic resonance imaging (MRI) in the diagnosis of PADs...
April 2017: International Journal of Reproductive Biomedicine (Yazd, Iran)
https://www.readbyqxmd.com/read/28780884/3d-power-doppler-in-uterine-fibroids-influence-of-gain-cardiac-cycle-and-off-line-measurement-techniques
#16
L L Nieuwenhuis, W J K Hehenkamp, H A M Brölmann, J A F Huirne
This study answers the question of whether ultrasound machine settings and the cardiac cycle can influence 3D power Doppler (3D PD) indices in the evaluation of uterine fibroid vascularisation. These parameters were reported to affect the vascular indices and cause undesired variation. 3D PD ultrasound was performed using three different gain settings: a fixed predetermined gain (50 dB), a higher gain (65 dB) and an individualised subjectively most optimal gain. Two consecutive 3D PD sweeps were taken to evaluate the effect of the cardiac cycle...
August 7, 2017: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28738721/the-clinical-value-of-maternal-and-fetal-doppler-parameters-in-low-risk-postdates-pregnancies-a-prospective-study
#17
Oshrit Lebovitz, Eran Barzilay, Shali Mazaki-Tovi, Itai Gat, Reuven Achiron, Yinon Gilboa
OBJECTIVE: The objective of this study is to determine the clinical significance of maternal and fetal ultrasound Doppler flow indices in postdates pregnancies. METHODS: This prospective study comprised 120 low-risk pregnant women beyond 40 weeks of gestation. All participants underwent Doppler assessment including of fetal middle cerebral artery (MCA), umbilical, and uterine arteries. Perinatal outcomes were recorded and evaluated for possible associations with Doppler flow values...
August 9, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28730844/correlation-between-uterine-artery-doppler-indices-and-menstrual-irregularities-among-levonorgestrel-releasing-intrauterine-system-and-depot-medroxyprogesterone-acetate-users-a-prospective-observational-study
#18
Mohamed Rezk, Alaa Al-Halaby, Mohamed Emarh, Mohamed Shawky
OBJECTIVE: To ascertain whether menstrual irregularities among users of levonorgestrel releasing intrauterine system (LNG-IUS) and depot medroxyprogesterone acetate (DMPA), were associated with changes in uterine artery Doppler indices or not. METHODS: This three-year prospective observational study included 102 women using LNG-IUS and 104 women using DMPA for contraception. Participants were followed at regular intervals over three years with performance of transvaginal ultrasound to measure uterine artery pulsatility index (PI) and resistance index (RI) before starting the method and at six months, 12 months, two and three years thereafter...
August 2017: European Journal of Contraception & Reproductive Health Care
https://www.readbyqxmd.com/read/28718893/association-between-maternal-vascular-murmur-and-the-small-for-gestational-age-fetus-with-abnormal-umbilical-artery-doppler-flow
#19
Diana Riknagel, Richard Farlie, Morten Hedegaard, Peter Humaidan, Johannes J Struijk
OBJECTIVE: To investigate the association between maternal vascular murmurs (MVMs) and fetal growth restriction (defined as small-for-gestational-age [SGA] fetus) and abnormal Doppler pulsatility index (PI) of the uterine and/or umbilical arteries. METHODS: A cross-sectional study of women aged 18 years or older with a singleton pregnancy at 28-34 weeks was conducted at Regional Hospital Viborg, Denmark, between May 1 and August 1, 2013. Ultrasound fetal biometry was performed and the Doppler PI of the umbilical and uterine arteries was determined...
November 2017: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/28715144/international-endometrial-tumor-analysis-ieta-terminology-in-women-with-postmenopausal-bleeding-and-sonographic-endometrial-thickness-%C3%A2-4-5%C3%A2-mm-an-agreement-and-reliability-study
#20
Povilas Sladkevicius, Arnaud Installé, Thierry Van den Bosch, Dirk Timmerman, Beryl Benacerraf, Ligita Jokubkiene, Alessia di Legge, Angelo Votino, Letizia Zannoni, Bart De Moor, Bavo De Cock, Ben Van Calster, Lil Valentin
OBJECTIVES: To estimate intra- and inter-rater agreement and reliability with regard to describing ultrasound images of the endometrium using the International Endometrial Tumor Analysis (IETA) terminology. METHODS: Four expert and four non-expert raters assessed video clips of transvaginal ultrasound examinations of the endometrium from 99 women with postmenopausal bleeding and sonographic endometrial thickness ≥4.5 mm and no fluid in the uterine cavity. The following features were rated: endometrial echogenicity (nine categories), endometrial midline (four categories), bright edge (yes, no), endometrial-myometrial junction (four categories), color score (1 to 4), vascular pattern (seven categories), irregularly branching vessels (yes, no), color splashes (yes, no)...
July 17, 2017: Ultrasound in Obstetrics & Gynecology
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