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https://www.readbyqxmd.com/read/28718938/quality-control-of-ultrasound-for-fetal-biometry-results-from-the-intergrowth-21-st-project
#1
Angelo Cavallaro, Stephen T Ash, Raffaele Napolitano, Sikolia Wanyonyi, Eric O Ohuma, Malid Molloholli, Joyce Sande, Ippokratis Sarris, Christos Ioannou, Tess Norris, Vera Donadono, Maria Carvalho, Manorama Purwar, Fernando C Barros, Yasmin A Jaffer, Enrico Bertino, Ruyan Pang, Michael G Gravett, Laurent J Salomon, Julia Alison Noble, Douglas G Altman, Aris T Papageorghiou
OBJECTIVES: To assess a comprehensive package of ultrasound quality control in a large multicentre study of fetal growth - the Fetal Growth Longitudinal Study of the INTERGROWTH-21(st) Project. METHODS: We performed quality control (QC) measures on 20,313 ultrasound scan images taken prospectively from 4,321 fetuses at 14-41 weeks' gestation in eight geographical locations. At the time of each ultrasound examination, three fetal biometric variables were measured in triplicate on separately generated images: head circumference (HC), abdominal circumference (AC) and femur length (FL)...
July 18, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28718036/paravertebral-blocks-reduce-narcotic-use-without-affecting-perfusion-in-patients-undergoing-autologous-breast-reconstruction
#2
Elizabeth B Odom, Nili Mehta, Rajiv P Parikh, Ryan Guffey, Terence M Myckatyn
BACKGROUND: Autologous breast reconstruction offers excellent long term outcomes after mastectomy. However, maintaining adequate postoperative analgesia remains challenging. Use of paravertebral blocks (PVBs) reduces postoperative narcotic use and length of stay, and enhanced recovery protocols with mixed analgesia methods are gaining popularity, but few studies have explored the intraoperative effects of these interventions. METHODS: Patients who underwent abdominally based autologous breast reconstruction between 2010 and 2016 were compiled into a retrospective database...
July 17, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28718001/a-new-device-for-fiducial-registration-of-image-guided-navigation-system-for-liver-rfa
#3
Nobutaka Doba, Hiroyuki Fukuda, Kazushi Numata, Yoshiteru Hao, Kouji Hara, Akito Nozaki, Masaaki Kondo, Makoto Chuma, Katsuaki Tanaka, Shigeo Takebayashi, Norihiro Koizumi, Akira Kobayashi, Junichi Tokuda, Shin Maeda
PURPOSE: Radiofrequency ablation for liver tumors (liver RFA) is widely performed under ultrasound guidance. However, discriminating between the tumor and the needle is often difficult because of cavitation caused by RFA-induced coagulation. An unclear ultrasound image can lead to complications and tumor residue. Therefore, image-guided navigation systems based on fiducial registration have been developed. Fiducial points are usually set on a patient's skin. But the use of internal fiducial points can improve the accuracy of navigation...
July 17, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28717557/uterine-lipoleiomyoma-a-report-of-two-cases
#4
Haji Mohammed Nazir, Sankesh Mehta, C R Seena, N Kulasekaran
We report two cases of uterine lipoleiomyoma in postmenopausal women of ages 52 and 55 years, who presented with complaints of leukorrhea and lower abdominal pain, respectively. Lipoleiomyoma is a rare benign variant of leiomyoma, having an incidence of 0.03%-0.2%. These are benign pelvic tumors which are usually asymptomatic and commonly occur in obese postmenopausal women. However, they can occasionally present with typical leiomyoma symptoms. Imaging plays a crucial role in the diagnosis of benign pelvic tumors...
2017: Journal of Clinical Imaging Science
https://www.readbyqxmd.com/read/28716083/influence-of-simethicone-and-fasting-on-the-quality-of-abdominal-ultrasonography-in-new-zealand-white-rabbits
#5
Kassy Gomes da Silva, Carla de Andrade, Cristina Santos Sotomaior
Presence of significant quantities of gas in the intestines may hinder a proper conduction of abdominal ultrasonography. In humans, preparatory techniques are used to solve this, but measures to avoid ultrasonographic complications due to intestinal gas in rabbits have not been reported. The objective of this study was to evaluate the influence of fasting and simethicone administered orally on the quality of ultrasonographic images of the gallbladder, kidneys, and jejunum in adult New Zealand White (NZW) rabbits...
July 17, 2017: Acta Veterinaria Scandinavica
https://www.readbyqxmd.com/read/28716031/a-rare-case-of-intradural-and-extramedullary-epidermoid-cyst-after-repetitive-epidural-anesthesia-case-report-and-review-of-the-literature
#6
Haruki Funao, Norihiro Isogai, Kenshi Daimon, Yuichiro Mima, Hitoshi Sugiura, Takahiro Koyanagi, Masaya Nakamura, Morio Matsumoto, Ken Ishii
BACKGROUND: Spinal epidermoid cysts are benign tumors, which are rarely seen as an intradural extramedullary spinal cord tumor in the conus medullaris region. Acquired spinal epidermoid cysts are mostly caused by iatrogenic procedures, such as lumbar puncture, and the majority of acquired spinal epidermoid cysts have been reported below the L1 level, because lumbar puncture is usually performed around the iliac crest. Here, we report an extremely rare case of an epidermoid cyst that occurred as an intradural and extramedullary spinal cord tumor attached to the conus medullaris after repetitive epidural anesthesia...
July 17, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28715299/test-retest-reliability-of-measurements-of-abdominal-and-multifidus-muscles-using-ultrasound-imaging-in-adults-aged-50-79-years
#7
W A Cuellar, L Blizzard, M L Callisaya, J A Hides, G Jones, C Ding, T M Winzenberg
Test-retest reliability of the combined process of ultrasound imaging (USI) and image measurement of thickness of abdominal and upper lumbar multifidus (MF) muscles and MF cross sectional area (CSA) of older adults has not been established. Imaging muscles of older adults can be challenging due to age-related changes in the spine and skeletal muscle so establishing test-retest reliability in this population is important. This study aimed to evaluate test-retest reliability of USI of abdominal and MF muscle thickness and MF CSA for adults aged 50-79 years...
April 2017: Musculoskeletal Science & Practice
https://www.readbyqxmd.com/read/28713605/diarrhea-as-a-presenting-symptom-of-disseminated-toxoplasmosis
#8
Matthew Glover, Zhouwen Tang, Robert Sealock, Shilpa Jain
Disseminated toxoplasmosis is uncommon in both immunocompetent and immunocompromised hosts with gastrointestinal involvement being rarely described. We report a case of disseminated gastrointestinal toxoplasmosis in an immunocompromised man who presented with one month of diarrhea and abdominal pain. Imaging showed thickening of the ascending colon and cecum. Esophagogastroduodenoscopy and colonoscopy biopsies revealed Toxoplasma gondii, confirmed by immunostain. Symptoms completely resolved following treatment with pyrimethamine, sulfadiazine, and leucovorin...
2017: Case Reports in Gastrointestinal Medicine
https://www.readbyqxmd.com/read/28712812/peroxynitrite-footprint-in-circulating-neutrophils-of-abdominal-aortic-aneurysm-patients-is-lower-in-statin-than-in-non-statin-users
#9
M E Groeneveld, J J van der Reijden, G J Tangelder, L C Westin, L Renwarin, R J P Musters, W Wisselink, K K Yeung
OBJECTIVES: Extensive reactive oxygen and nitrogen species (also reactive species) production is a mechanism involved in abdominal aortic aneurysm (AAA) development. White blood cells (WBCs) are a known source of reactive species. Their production may be decreased by statins, thereby reducing the AAA growth rate. Reactive species production in circulating WBCs of AAA patients and the effect of statins on their production was investigated. METHODS: This observational study investigated reactive species production in vivo and ex vivo in circulating WBCs of AAA patients, using venous blood from patients prior to elective AAA repair (n = 34; 18 statin users) and from healthy volunteers (n = 10)...
July 14, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28712695/endoleaks-after-endovascular-aortic-aneurysm-repair-improved-detection-with-noise-optimized-virtual-monoenergetic-dual-energy-ct
#10
Simon S Martin, Julian L Wichmann, Hendrik Weyer, Jan-Erik Scholtz, Doris Leithner, Adam Spandorfer, Boris Bodelle, Volkmar Jacobi, Thomas J Vogl, Moritz H Albrecht
PURPOSE: To assess image quality and diagnostic performance of a noise-optimized algorithm to reconstruct virtual monoenergetic images (VMI+) for the detection of endoleaks after endovascular abdominal aortic aneurysm repair (EVAR) using dual-energy CT angiography (DE-CTA). MATERIALS AND METHODS: Seventy-five patients (42 men; 66.2±11.7years) underwent DE-CTA following EVAR. Arterial phase images were acquired in dual-energy mode for the reconstruction of standard linearly-blended M_0...
June 27, 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28712591/normalizing-ovulation-rate-by-preferential-reduction-of-hepato-visceral-fat-in-adolescent-girls-with-polycystic-ovary-syndrome
#11
Lourdes Ibáñez, Luis Del Río, Marta Díaz, Giorgia Sebastiani, Óscar J Pozo, Abel López-Bermejo, Francis de Zegher
PURPOSE: Polycystic ovary syndrome (PCOS) is an increasingly prevalent disorder in adolescent girls, commonly presenting with hirsutism/oligomenorrhea, commonly treated with an oral contraceptive (OC), and commonly followed by oligoanovulatory subfertility. We tested whether an intervention targeting the reduction of hepato-visceral adiposity is followed by a higher ovulation rate than OC treatment. METHODS: This randomized, open-label, single-center, pilot proof-of-concept study (12 months on treatment, then 12 months off) was performed in adolescent girls with hirsutism and oligomenorrhea (PCOS by National Institutes of Health; no sexual activity; N = 36; mean age 16 years, body mass index 23...
July 13, 2017: Journal of Adolescent Health: Official Publication of the Society for Adolescent Medicine
https://www.readbyqxmd.com/read/28712193/autoimmune-disease-presenting-as-acute-abdomen
#12
Wasim A Memon, Saad Siddiqui, Ameer Hamza
Mesenteric vasculitis and resultant bowel ischemia is rare but serious complication of autoimmune disorders. Early detection and treatment is the key to avoid potentially fatal outcomes of bowel perforation and peritonitis. In this series, we present patients presenting with acute abdominal pain and having CT imaging features of bowel ischemia who responded well to immunosuppressive therapy. The aim of this work is to familiarize health professionals with possibility and imaging features of mesenteric vasculitis...
January 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/28710306/ruxolitinib-treatment-in-an-infant-with-jak2-polycythaemia-vera-associated-budd-chiari-syndrome
#13
Mehmet Enes Coskun, Sue Height, Anil Dhawan, Nedim Hadzic
Budd-Chiari syndrome (BCS) is caused by hepatic venous outflow obstruction commonly seen with myeloproliferative neoplasms (MPNs). Polycythaemia vera (PV) is a very rare MPN in childhood. This is the youngest reported patient diagnosed with PV and BCS secondary to JAK V617F mutation.A 26-month-old girl was admitted with a 5-month history of abdominal distension, hepatosplenomegaly and ascites. Imaging studies revealed occlusion of the right hepatic vein and marked attenuation of the middle and left hepatic veins...
July 14, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28709930/particle-image-velocimetry-study-of-the-celiac-trunk-hemodynamic-induced-by-continuous-flow-left-ventricular-assist-device
#14
Francesco Scardulla, Diego Bellavia, Leonardo D'Acquisto, Giuseppe M Raffa, Salvatore Pasta
Whereas left ventricular assist device (LVAD) is the gold-standard therapy for patients with heart failure, gastrointestinal bleeding is one of the most common complications. LVAD implantation may remarkably impact aortic hemodynamics so that experimental and computational flow analyses can be used to study the disease mechanisms. Here we present an experimentally-calibrated computational model of the celiac trunk hemodynamic of a LVAD-supported patient who experienced bleeding after device implantation. Specifically, both particle image velocimetry (PIV) and echocardiography were used to measure and compare flow distributions in each branch of a phantom model of the patient abdominal aorta...
July 12, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28709929/large-eddy-simulations-of-blood-dynamics-in-abdominal-aortic-aneurysms
#15
Christian Vergara, Davide Le Van, Maurizio Quadrio, Luca Formaggia, Maurizio Domanin
We study the effects of transition to turbulence in abdominal aortic aneurysms (AAA). The presence of transitional effects in such districts is related to the heart pulsatility and the sudden change of diameter of the vessels, and has been recorded by means of clinical measures as well as of computational studies. Here we propose, for the first time, the use of a large eddy simulation (LES) model to accurately describe transition to turbulence in realistic scenarios of AAA obtained from radiological images...
July 12, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28709112/mens-inversus-in-corpore-inverso-language-lateralization-in-a-boy-with-situs-inversus-totalis
#16
Anna-Lisa Schuler, Gregor Kasprian, Ernst Schwartz, Rainer Seidl, Mariana C Diogo, Christian Mitter, Georg Langs, Daniela Prayer, Lisa Bartha-Doering
Situs inversus totalis is a rare condition where the visceral organs are organized as a mirror image of default organ position. In this study we picture the co-development between brain and visceral organs in a case of situs inversus totalis from a fetal stage to adolescence and compare our findings to an age-, gender-, and education-matched control with normal position of thoracic and abdominal organs. We show that in this case of situs inversus, functional and structural brain lateralization do not coincide with visceral organ situs...
July 11, 2017: Brain and Language
https://www.readbyqxmd.com/read/28708494/relationship-between-echotextural-and-histomorphometric-characteristics-of-stallion-testes
#17
Malgorzata Pozor, Heather Morrissey, Valeria Albanese, Natalie Khouzam, Alexis Deriberprey, Margo L Macpherson, Audrey A Kelleman
The goal of this study was to investigate correlations between objective measures of testicular echotexture and histomorphometric attributes related to the histological composition of stallion testes. Fifty-four scrotal testes were obtained from three groups of stallions during routine castrations: colts <1 yr old (n = 18), young stallions 1-5 yrs old (n = 27), mature stallions > 5 yrs old (n = 9). In addition, two scrotal testes with degeneration, 16 retained inguinal and 10 retained abdominal testes were surgically obtained...
June 1, 2017: Theriogenology
https://www.readbyqxmd.com/read/28707775/giant-fetal-hydrometrocolpos-associated-with-cloacal-anomaly-causing-postnatal-respiratory-distress
#18
Tatsuhito Kanda, Takashi Iizuka, Rena Yamazaki, Junpei Iwadare, Masanori Ono, Hiroshi Fujiwara
Persistent cloaca is a rare presentation wherein the urethra, vagina, and rectum converge into a common channel with a single perineal opening. Fetal hydrometrocolpos can result if fluid accumulates behind an obstruction of this common channel. A 29-year-old woman (G4P1021) was referred at 36 2/7 weeks of gestation for evaluation of a fetal abdominal cystic mass. Detailed ultrasonography and magnetic resonance imaging showed two symmetric cystic masses, bilateral hydronephrosis, and oligohydramnios. Elective cesarean delivery was performed at 37 0/7 weeks; the baby weighed 4043 g with Apgar scores of 5 and 6 at 1 and 5 min...
July 14, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28707545/diagnostic-evaluation-of-simulation-ct-images-for-adjuvant-radiotherapy-in-pancreatic-adenocarcinoma
#19
Bohyun Kim, Young Chul Kim, O Kyu Noh, Jaesung Heo, Hyun Woo Lee, Ji Hoon Kim, Jei Hee Lee, Jai Keun Kim, Oyeon Cho, Young-Taek Oh, Mison Chun
OBJECTIVE: The purpose of this study is to review simulation CT scans and evaluate their diagnostic value in patients treated with adjuvant radiation therapy for pancreatic adenocarcinoma. MATERIALS AND METHODS: Seventy-three patients who had undergone simulation CT scans for adjuvant radiation therapy in pancreatic adenocarcinoma were reviewed. All simulation CT scans were reviewed by professional abdominal radiologists, who compared the images with corresponding prior CT scans to identify new lesions...
July 14, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28707539/visceral-adipose-tissue-area-measurement-at-a-single-level-can-it-represent-visceral-adipose-tissue-volume
#20
Yusuke Noumura, Tamotsu Kamishima, Kenneth Sutherland, Hideho Nishimura
OBJECTIVES: Measurement of visceral adipose tissue (VAT) needs to be accurate and sensitive to change for risk monitoring. The purpose of this study is to determine the CT slice location where VAT area can best reflect changes in VAT volume and body weight. METHODS: 60 plain abdominal CT images from 30 males (mean age (range) 51 (41-68) years, mean body weight (range) 71.1 (101.9-50.9) kg) who underwent workplace screenings twice within a 1 year interval were evaluated...
July 14, 2017: British Journal of Radiology
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