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Abdominal doppler ultrasound

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https://www.readbyqxmd.com/read/28620160/small-diameter-hybrid-vascular-grafts-composed-of-polycaprolactone-and-polydioxanone-fibers
#1
Yiwa Pan, Xin Zhou, Yongzhen Wei, Qiuying Zhang, Ting Wang, Meifeng Zhu, Wen Li, Rui Huang, Ruming Liu, Jingrui Chen, Guanwei Fan, Kai Wang, Deling Kong, Qiang Zhao
Electrospun polycaprolactone (PCL) vascular grafts showed good mechanical properties and patency. However, the slow degradation of PCL limited vascular regeneration in the graft. Polydioxanone (PDS) is a biodegradable polymer with high mechanical strength and moderate degradation rate in vivo. In this study, a small-diameter hybrid vascular graft was prepared by co-electrospinning PCL and PDS fibers. The incorporation of PDS improves mechanical properties, hydrophilicity of the hybrid grafts compared to PCL grafts...
June 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28616621/a-rare-cause-of-acute-abdominal-pain-in-children-isolated-tubal-torsion-a-case-series
#2
Yasemin Dere Gunal, Gokhan Berktug Bahadir, Ozlem Boybeyı, Aylin Pelin Cıl, Mustafa Kemal Aslan
Isolated tubal torsion -a rare cause of acute abdomen in children-is usually difficult to diagnose because of non-specific findings. Surgical salphingectomy is required in delayed diagnosis in most cases. Three sexual inactive adolescents diagnosed in isolated tubal torsion (ITT) were discussed for its diagnostic features and surgical management. Laboratory tests and radiological studies including ultrasonography (US), color doppler ultrasound were performed in all patients after evaluation for acute lower abdominal pain in emergency department and they underwent surgical intervention with laparotomy (n:2) and laparoscopy (n:1)...
June 2017: Turkish Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28593006/ultrasound-detection-of-aortoenteric-fistula-in-a-patient-with-sepsis
#3
Tiziano Perrone, Chiara Pagani, Elisa Eleonora Mossolani
We report a case of an 81-year-old man, hospitalized for sepsis unresponsive to targeted antibiotic therapy, who underwent abdominal aortic aneurysmectomy with stent placement before 12 years. Point-of-care ultrasound examination showed the presence of a voluminous and inhomogeneous lesion adjacent to the anterior wall of aortic bifurcation with pulsatile flow from the aorta into the lesion, highlighted by Color-Doppler, and peripheral (closely with intestinal loops) floating hyperechoic spots marked by posterior comet tail artifact, suggestive for the presence of air bubbles...
June 2017: Journal of Ultrasound
https://www.readbyqxmd.com/read/28593005/real-time-elastography-in-crohn-s-disease-feasibility-in-daily-clinical-practice
#4
Andrea Giannetti, Marco Matergi, Marco Biscontri, Francesco Tedone, Lucia Falconi, Luca Franci
Ultrasound (US) is the first-line investigation in patients with abdominal symptoms and it has a role in the diagnosis and monitoring of inflammatory bowel diseases. Strain elastography (SE) is a US method for estimating tissue elasticity. This method is still not routinely used in clinical practice, although it is suggested by the EFSUMB Guidelines for the characterization of intestinal stenosis in Crohn's disease. The purpose of this Pictorial Essay is to confirm the feasibility of elastography in Crohn's disease in clinical practice by comparing elastography images with corresponding endoscopic or radiological images...
June 2017: Journal of Ultrasound
https://www.readbyqxmd.com/read/28590826/minimally-invasive-treatment-of-pediatric-extrinsic-ureteropelvic-junction-obstruction-by-crossing-polar-vessels-is-vascular-hitching-a-definitive-solution-report-of-a-multicenter-survey
#5
Salvatore Fabio Chiarenza, Cosimo Bleve, Paolo Caione, Maria Escolino, Simona Gerocarni Nappo, Rosa Perretta, Angela La Manna, Ciro Esposito
BACKGROUND: This article aimed to evaluate the outcome of laparoscopic vascular hitch (VH) as an effective alternative to dismembered pyeloplasty in the treatment of children with extrinsic ureteropelvic junction obstruction (UPJO) by crossing vessels (CVs), by reporting the experience of three Italian centers of Pediatric Surgery. METHODS: From 2006 to 2014, 54 children (18 girls and 36 boys, average age 10.7 years) affected by suspected extrinsic UPJO by CV were treated in three different institutions: 51 patients underwent laparoscopic VH, while 3 patients, in which a coexisting intrinsic etiology of UPJO was doubtful, underwent laparoscopic dismembered pyeloplasty...
June 7, 2017: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/28571941/clinical-predictors-of-isolated-tubal-torsion-a-case-series
#6
K W Webster, S M Scott, P S Huguelet
STUDY OBJECTIVE: A rare cause of adolescent abdominal pain includes isolated tubal torsion (ITT). Presentation is nonspecific and few studies have investigated adolescents. Our study objective is to describe the presentation and management of ITT in a large case series. DESIGN: Retrospective observational case series. SETTING: Tertiary care children's hospital. PARTICIPANTS: Females aged 3-21, presenting to Children's Hospital Colorado and diagnosed with ITT between January 2004 and August 2015...
May 29, 2017: Journal of Pediatric and Adolescent Gynecology
https://www.readbyqxmd.com/read/28570613/clinical-ultrasound-and-molecular-biomarkers-for-early-prediction-of-large-for-gestational-age-infants-in-nulliparous-women-an-international-prospective-cohort-study
#7
Matias C Vieira, Lesley M E McCowan, Alexandra Gillett, Lucilla Poston, Elaine Fyfe, Gustaaf A Dekker, Philip N Baker, James J Walker, Louise C Kenny, Dharmintra Pasupathy
OBJECTIVE: To develop a prediction model for term infants born large for gestational age (LGA) by customised birthweight centiles. METHODS: International prospective cohort of nulliparous women with singleton pregnancy recruited to the Screening for Pregnancy Endpoints (SCOPE) study. LGA was defined as birthweight above the 90th customised centile, including adjustment for parity, ethnicity, maternal height and weight, fetal gender and gestational age. Clinical risk factors, ultrasound parameters and biomarkers at 14-16 or 19-21 weeks were combined into a prediction model for LGA infants at term using stepwise logistic regression in a training dataset...
2017: PloS One
https://www.readbyqxmd.com/read/28559852/is-abdominal-fetal-electrocardiography-an-alternative-to-doppler-ultrasound-for-fhr-variability-evaluation
#8
Janusz Jezewski, Janusz Wrobel, Adam Matonia, Krzysztof Horoba, Radek Martinek, Tomasz Kupka, Michal Jezewski
Great expectations are connected with application of indirect fetal electrocardiography (FECG), especially for home telemonitoring of pregnancy. Evaluation of fetal heart rate (FHR) variability, when determined from FECG, uses the same criteria as for FHR signal acquired classically-through ultrasound Doppler method (US). Therefore, the equivalence of those two methods has to be confirmed, both in terms of recognizing classical FHR patterns: baseline, accelerations/decelerations (A/D), long-term variability (LTV), as well as evaluating the FHR variability with beat-to-beat accuracy-short-term variability (STV)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28538448/ultrasonography-for-preoperative-diagnosis-of-retroperitoneal-fibrosis
#9
Sheng-Jiang Chen, Ling Qin, Yu-Juan Xie, Jian-Ping Zhu, Qiang Zhang, Mei Chen
This study aimed to assess the application of ultrasonography for preoperative diagnosis of retroperitoneal fibrosis (RPF). A total of 51 patients with clinically suspected RPF underwent transabdominal ultrasonography and ultrasound-guided histopathologic biopsy (tAU-UGHB). Retroperitoneal fibrosis was diagnosed in 35 patients; of these, 31 cases (88.6%) received a diagnosis using tAU-UGHB. The ultrasonographic images mainly showed solid, irregular isoechoic masses, which were present behind the retroperitoneum and surrounded the abdominal aorta, inferior vena cava, and ureters and had clear borders with the encapsulated structures...
June 2017: Ultrasound Quarterly
https://www.readbyqxmd.com/read/28537347/adnexal-torsion-in-the-first-trimester-of-pregnancy-diagnosis-laparoscopic-management-and-review-of-the-literature
#10
Rafael Bras, Jorge Braga, António Tomé, Helder Ferreira
We report a case of an adnexal torsion in a 27-year-old woman in her 12th week of gestation. She presented with hypogastric and lumbar pain with biliary vomiting and nausea. Upon physical examination, tenderness in the right lower quadrant with rebound tenderness was apparent, and gynecological examination revealed right adnexal tenderness with absence of abnormal cervical discharge. The transvaginal ultrasonography demonstrated an enlarged cystic right ovary with no flow detected on color and power Doppler mode...
May 24, 2017: Surgical Technology International
https://www.readbyqxmd.com/read/28534017/delayed-postpartum-hemoperitoneum-due-to-uterine-artery-pseudoaneurysm-rupture
#11
Kyu-Sang Kyeong, Ji-Yeon Moon, Song-Hwa Chae, Seung Hwa Hong, Minho Kang, Eun-Hwan Jeong
A 30-year-old woman experienced severe abdominal pain 8 days after vaginal delivery. The patient was diagnosed with hemoperitoneum due to rupture of the left uterine artery pseudoaneurysm, which was confirmed via ultrasound with color Doppler and computed tomography scans. This patient was treated with bilateral uterine artery embolization to maintain fertility. A uterine artery pseudoaneurysm that causes delayed postpartum hemorrhage can occur after cesarean section or vaginal delivery. A uterine artery pseudoaneurysm can be fatal, so its detection and diagnosis are critical...
May 2017: Obstetrics & Gynecology Science
https://www.readbyqxmd.com/read/28527199/the-value-of-contrast-enhanced-ultrasound-ceus-using-a-high-end-ultrasound-system-in-the-characterization-of-endoleaks-after-endovascular-aortic-repair-evar
#12
J Rübenthaler, M Reiser, V Cantisani, D Rjosk-Dendorfer, D A Clevert
PURPOSE: To evaluate the value of contrast-enhanced ultrasound (CEUS) using a high-end ultrasound system in the characterization of endoleaks after endovascular aortic repair (EVAR). MATERIAL AND METHODS: In this mono-center study, 41 patients were retrospectively analyzed after being examined using a modern high-end ultrasound system (RS80A with Prestige, Samsung Medison Co., Ltd., Seoul, Korea). The maximum diameters of the aneurysms were measured in two planes (right-left and ventral-dorsal)...
May 18, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28503707/the-value-of-ultrasound-in-diagnosing-extracranial-large-vessel-vasculitis-compared-to-fdg-pet-ct-a-retrospective-study
#13
Christian Löffler, Johannes Hoffend, Urs Benck, Bernhard K Krämer, Raoul Bergner
Large-vessel vasculitis (LVV) is a group of diseases mainly comprised of giant-cell arteritis (GCA), Takayasu arteritis, and a series of rare diseases like Behçet's disease, IgG4-related disease, infectious aortitis, and other unfrequent entities. Besides clinical and laboratory features, Doppler sonography (DS) can assist in establishing the diagnosis. Its diagnostic sensitivity has been evaluated in various studies, most of them, however, in temporal arteritis (TA) respectively in LVV with involvement of the temporal artery...
May 15, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28497449/percutaneous-us-guided-renal-cryoablation-using-3d-modeling
#14
Leonid M Rapoport, Shmuel Cytron, Mikhail E Enikeev, Dmitry G Tsarichenko, Dmitry V Enikeev, Denis V Chinenov
INTRODUCTION: The article describes the first experience of performing percutaneous ultrasound (US)-guided cryoablation of renal tumor and assesses the safety and short-term results of treatment. MATERIALS AND METHODS: Twelve patients were subjected to US-guided cryoablation of renal tumor in 2015. The tumor size in 11 patients was up to 3.0 cm (T1а); in one female patient, 4.5 cm (T1b). Tumors were assessed according to the PADUA score. In eight patients, it was 6-7 (low); in three patients, 8-9 (average); in one, 10 (high)...
May 10, 2017: Urologia
https://www.readbyqxmd.com/read/28491175/mri-characteristics-of-primary-fallopian-tube-choriocarcinoma-a-case-report
#15
Hui-Ru Jia, Jing Zhang, You-Min Guo
Tubal choriocarcinoma is uncommon, and its magnetic resonance imaging characteristics have not yet been reported. In this report, a 39-year-old woman presented with irregular painless vaginal bleeding and a palpable left lower abdominal lump for 2 months following 6 weeks' amenorrhea and positive urine pregnancy test. Her serum β-human chorionic gonadotropin value was significantly increased. Ultrasound revealed a left adnexal mass, which showed no blood flow signal on Color doppler flow imaging. A further MR examination showed a well-defined cystic-solid mass with cystic component accounting for a large proportion in the left lower abdomen...
June 2017: Radiology case reports
https://www.readbyqxmd.com/read/28473429/atraumatic-chylous-ascites-an-unusual-presentation-of-bladder-cancer
#16
Ashish Srinivasan, Ross Apostolov, Amanda Leong, Douglas Johnson
We describe a case of bladder cancer presenting with atraumatic chylous ascites, which remains an extremely rare presentation of this condition. A previously well, elderly ex-smoker with no prior history of abdominal surgery was referred for investigation of progressive dyspnoea, increasing peripheral oedema and new-onset ascites, on a background of long-standing alcohol consumption (four standard drinks daily). Liver biochemistry and coagulation profile were normal apart from marked hypoalbuminaemia. Doppler ultrasound of the liver demonstrated normal echotexture and patent vasculature...
May 4, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28439427/double-aorta-artifact-in-sonography-a-diagnostic-challenge
#17
REVIEW
Robert Hadzik, Przemysław Bombiński, Michał Brzewski
The double aorta artifact was described and studied thoroughly twenty-five years ago. Despite this, it is still not commonly known today and can cause diagnostic difficulty. Total aortic duplication can be considered an anatomic defect whilst partial duplication mimics aortic dissection. In the literature, this artifact has been compared with a very rare anomaly, i.e. the occurrence of two aortas in one patient. Currently, however, the differentiation of this artifact from abdominal aortic dissection seems to be of greater significance...
March 2017: Journal of Ultrasonography
https://www.readbyqxmd.com/read/28420029/interlobar-artery-resistive-index-predicts-acute-on-chronic-liver-failure-syndrome-in-cirrhotic-patients-with%C3%A2-acute-decompensation
#18
Pablo A Solís-Muñoz, Christopher Willars, Julia Wendon, George Auzinger, Michael A Heneghan, Maria De la Flor-Robledo, José A Solís-Herruzo
Introduction Patients with acutely decompensated (AD) cirrhosis are at risk for developing acute-on-chronic liver failure (ACLF) syndrome. This syndrome is associated with a high short-term mortality rate. The aim of our study was to identify reliable early predictors of developing ACLF in cirrhotic patients with AD. Patients and Methods We assessed 84 cirrhotic patients admitted for AD without ACLF on admission. We performed routine blood testing and detailed ultrasound Doppler studies of systemic arteries and mayor abdominal veins and arteries...
April 18, 2017: Ultraschall in der Medizin
https://www.readbyqxmd.com/read/28351519/contrast-enhanced-ultrasound-for-the-evaluation-of-blunt-pediatric-abdominal-trauma
#19
Lindsey B Armstrong, David P Mooney, Harriet Paltiel, Carol Barnewolt, Beatrice Dionigi, Mary Arbuthnot, Chinwendu Onwubiko, Susan A Connolly, Delma Y Jarrett, Jill M Zalieckas
INTRODUCTION: Blunt abdominal trauma is a common problem in children. Computed tomography (CT) is the gold standard for imaging in pediatric blunt abdominal trauma, however up to 50% of CTs are normal and CT carries a risk of radiation-induced cancer. Contrast enhanced ultrasound (CEUS) may allow accurate detection of abdominal organ injuries while eliminating exposure to ionizing radiation. METHODS: Children aged 7-18years with a CT-diagnosed abdominal solid organ injury underwent grayscale/power Doppler ultrasound (conventional US) and CEUS within 48h of injury...
March 20, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28296829/ovarian-torsion-in-the-normal-ovary-a-diagnostic-challenge-in-postmenarchal-adolescent-girls-in-the-emergency-department
#20
Erbil Karaman, Burhan Beger, Orkun Çetin, Mehmet Melek, Yasemin Karaman
BACKGROUND Ovarian torsion can be seen in the otherwise-normal ovary and is a challenging issue in the emergency department. The aims were (1) to evaluate and compare the surgically verified ovarian torsion cases in otherwise-normal ovaries and ovaries including a mass or cyst and (2) to investigate whether the normal-appearing ovaries on ultrasound examination affected the diagnosis of ovarian torsion or not. MATERIAL AND METHODS A retrospective cohort study design was used. The medical records of all postmenarchal adolescent girls with surgically verified ovarian torsion treated in a university hospital from 2010 to 2016 were reviewed...
March 15, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
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