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Ultrasound

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https://www.readbyqxmd.com/read/29356291/blood-flow-restriction-and-cuff-width-effect-on-blood-flow-in-the-legs
#1
J Grant Mouser, Scott J Dankel, Kevin T Mattocks, Matthew B Jessee, Samuel L Buckner, Takashi Abe, Jeremy P Loenneke
Much of the literature examining blood flow restriction in the lower body uses cuffs of differing widths. It is currently unknown whether similar relative pressures using cuffs of differing widths elicit the same blood flow response. PURPOSE: To examine the hemodynamic responses to relative pressures using two commonly used cuffs (10 and 12 cm). METHODS: In a random order over two laboratory visits, one cuff was applied to the right proximal thigh of the participant (men = 17, women = 14), and arterial occlusion pressure (AOP) was measured...
January 21, 2018: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/29356191/skeletal-muscle-mass-in-human-athletes-what-is-the-upper-limit
#2
Takashi Abe, Samuel L Buckner, Scott J Dankel, Matthew B Jessee, Kevin T Mattocks, J Grant Mouser, Jeremy P Loenneke
OBJECTIVES: To examine the amount of absolute and relative skeletal muscle mass (SM) in large sized athletes to investigate the potential upper limit of whole body muscle mass accumulation in the human body. METHODS: Ninety-five large-sized male athletes and 48 recreationally active males (control) had muscle thickness measured by ultrasound at nine sites on the anterior and posterior aspects of the body. SM was estimated from an ultrasound-derived prediction equation...
January 22, 2018: American Journal of Human Biology: the Official Journal of the Human Biology Council
https://www.readbyqxmd.com/read/29356018/the-evolving-view-of-coronary-artery-calcium-and-cardiovascular-disease-risk
#3
REVIEW
Isac C Thomas, Nketi I Forbang, Michael H Criqui
Calcification of the coronary artery is a complex pathophysiologic process that is intimately associated with atherosclerosis. Extensive investigation has demonstrated the value of identifying and quantifying coronary artery calcium (CAC) in atherosclerotic cardiovascular disease (CVD) prognostication. However, over the last several years, an increasing body of evidence has suggested that CAC has underappreciated aspects that modulate, and at times attenuate, future CVD risk. The most commonly used measure of CAC, the Agatston unit, effectively models both higher density and higher area of CAC as risk factors for future CVD events...
January 22, 2018: Clinical Cardiology
https://www.readbyqxmd.com/read/29355914/intraoperative-imaging-technology-to-maximise-extent-of-resection-for-glioma
#4
REVIEW
Michael D Jenkinson, Damiano Giuseppe Barone, Andrew Bryant, Luke Vale, Helen Bulbeck, Theresa A Lawrie, Michael G Hart, Colin Watts
BACKGROUND: Extent of resection is considered to be a prognostic factor in neuro-oncology. Intraoperative imaging technologies are designed to help achieve this goal. It is not clear whether any of these sometimes very expensive tools (or their combination) should be recommended as standard care for people with brain tumours. We set out to determine if intraoperative imaging technology offers any advantage in terms of extent of resection over standard surgery and if any one technology was more effective than another...
January 22, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29355895/is-ultrasound-measured-fetal-biometry-predictive-of-intrapartum-caesarean-section-for-failure-to-progress
#5
Jenny M Yang, Jon A Hyett, Kevin Mcgeechan, Hala Phipps, Bradley S de Vries
BACKGROUND: There are global concerns regarding excessive caesarean rates, which could be reduced by identification of risk factors leading to preventative measures such as induction of labour. AIMS: This study aims to describe the association between antenatal ultrasound and emergency caesarean section for: (i) failure to progress; (ii) other indications; and (iii) any indication. MATERIALS AND METHODS: Women who had an ultrasound in pregnancy between 36(+0/7) to 38(+6/7) weeks at Royal Prince Alfred Hospital from January 2005 to June 2009 were included...
January 22, 2018: Australian & New Zealand Journal of Obstetrics & Gynaecology
https://www.readbyqxmd.com/read/29355747/proximal-linear-extension-of-skin-hypopigmentation-after-ultrasound-guided-corticosteroid-injection-for-de-quervain-tenosynovitis-a-case-report
#6
Carlo Milani, Cindy Lin
De Quervain tenosynovitis is a stenosing tenosynovitis of the first dorsal compartment of the wrist that can lead to painful functional impairment of the upper limb. This case report describes a rare adverse effect of corticosteroid injection which is local skin atrophy and hypopigmentation with proximal linear extension. In this case, hypopigmentation developed from the wrist to beyond the elbow after corticosteroid injection with ultrasound guidance and targeted placement of the injectate in the extensor tendon sheath of the first dorsal compartment...
January 17, 2018: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/29355307/fluorescent-hydrogel-generated-conveniently-from-a-perylene-tetracarboxylate-derivative-of-titanium-iv-alkoxide
#7
Dan-Hong Zou, Peng Wang, Wen Luo, Jin-Le Hou, Qin-Yu Zhu, Jie Dai
Organic gelators and metal-coordination frameworks based on perylene derivatives as functional materials have attracted great attention because of their intense fluorescence emission as well as unique electronic and photonic properties. We report here the structures and properties of a luminescent titanium(IV) coordination compound of a perylene tetracarboxylate (PTC) derivative, [Ti2(OiPr)6(L1)(phen)2] (1), along with its two naphthalene analogues, [Ti2(OiPr)6(L2)(phen)2] (2) and [Ti2(OiPr)6(L2)(bpy)2] (3), where L1 = 3,9-dicarboxylate-(4,10-diisopropanolcarboxylate)perylene, phen = 1,10-phenanthroline, L2 = 1,5-dicarboxylate-(2,6-diisopropanolcarboxylate)naphthalene, and bpy = 2,2'-bipyridine...
January 22, 2018: Inorganic Chemistry
https://www.readbyqxmd.com/read/29355292/effectiveness-of-ultrasound-guided-vs-direct-approach-corticosteroid-injections-for-carpal-tunnel-syndrome-a-double-blind-randomized-controlled-trial
#8
Po-Cheng Chen, Lin-Yi Wang, Ya-Ping Pong, Yi-Jung Hsin, Mei-Yun Liaw, Chia-Wei Chiang
OBJECTIVE: To compare the outcomes of ultrasound-guided vs direct approach corticosteroid injection in patients with idiopathic carpal tunnel syndrome. METHODS: A double-blind randomized controlled study. Wrists affected by carpal tunnel syndrome were randomized to the ultrasound-guided (n = 22 wrists) or direct approach injection group (n = 17 wrists) before receiving 1 ml Betamethasone. Outcome measures were physical findings and electrodiagnostic parameters assessed at 1, 3 and 6 months after injection...
January 22, 2018: Journal of Rehabilitation Medicine
https://www.readbyqxmd.com/read/29355168/reproductive-health-and-pregnancy-in-women-with-chronic-kidney-disease
#9
REVIEW
Kate S Wiles, Catherine Nelson-Piercy, Kate Bramham
Chronic kidney disease (CKD) is associated with reduced fertility and an increased risk of adverse pregnancy outcomes. Rates of pre-eclampsia, fetal growth restriction and preterm delivery increase incrementally with the severity of CKD and proteinuria. Pre-pregnancy counselling can facilitate informed decision-making. Safe and effective contraception is required for women who wish to delay or avoid pregnancy. Pregnancy planning for women who wish to conceive involves appropriate substitution of known teratogens - including mycophenolate mofetil, angiotensin blockers and cyclophosphamide - and can aid optimization of disease control...
January 22, 2018: Nature Reviews. Nephrology
https://www.readbyqxmd.com/read/29355163/the-role-of-transrectal-ultrasound-guided-fine-needle-aspiration-biopsy-in-the-diagnosis-of-prostate-cancer-sextant-versus-extended-protocol
#10
Abisola E Oliyide, Kehinde H Tijani, Emmanuel A Jeje, Charles C Anunnobi, Adekunle A Adeyomoye, Rufus W Ojewola, Moses A Ogunjimi, Taiwo O Alabi
AIM AND OBJECTIVES: The aim of this study is to compare the prostate cancer detection rates of sextant and extended transrectal ultrasound (TRUS)-guided fine-needle aspiration biopsy (FNAB) protocols. MATERIALS AND METHODS: This was a prospective study of 96 patients investigated for prostate cancer. An extended 10-aspiration TRUS-guided FNAB using a 22G Echotip Chiba needle was performed. Inclusion criteria included the presence of one or more of the following: Abnormal digital rectal examination (DRE) findings, persistently elevated prostate specific antigen, and abnormal prostatic imaging...
October 2017: Nigerian Postgraduate Medical Journal
https://www.readbyqxmd.com/read/29355159/colour-doppler-sonography-of-the-penis-in-the-evaluation-of-erectile-dysfunction-our-experience-in-abuja-nigeria
#11
Joshua Oluwafemi Aiyekomogbon, Joseph Bako Igashi, Reuben Omokafe Lawan, Muftau Jimoh Bioku, Musa Ameadaji
BACKGROUND: Erectile dysfunction (ED) is an inability to achieve and maintain erectile rigidity sufficient for satisfactory sexual performance. It is either organic or psychogenic in origin. This study was aimed at establishing vasculogenic causes among patients being evaluated for ED using triplex Doppler Ultrasound. PATIENTS AND METHODS: This study was conducted at the Department of Radiology, Federal Medical Centre, Abuja, Nigeria from July 2015 to January 2017...
October 2017: Nigerian Postgraduate Medical Journal
https://www.readbyqxmd.com/read/29354896/-10-year-series-studies-of-chronic-radiation-proctopathy-from-the-sixth-affiliated-hospital-of-sun-yat-sen-university
#12
Lei Wang, Tenghui Ma, Jianping Wang
Chronic radiation proctopathy (CRP) is the delayed adverse effect after radiotherapy for pelvic malignancies. It is characterized as progressive fibrosis in pathology. The symptoms are usually unspecific which include rectal bleeding, perianal pain, tenesmus, stool frequencies and so on. The course of CRP can present from months to years after radiation. Severe complications can occur in the late stage and will greatly affect the quality of life. Currently, there is no standard guides for diagnosis and treatment of CRP...
January 25, 2018: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/29354653/comparison-of-2d-and-3d-ultrasound-methods-to-measure-serial-bladder-volumes-during-filling-steps-toward-development-of-non-invasive-ultrasound-urodynamics
#13
Anna S Nagle, Rachel J Bernardo, Jary Varghese, Laura R Carucci, Adam P Klausner, John E Speich
OBJECTIVES: Non-invasive methods to objectively characterize overactive bladder (OAB) and other forms of voiding dysfunction using real-time ultrasound are currently under development but require accurate and precise serial measurements of bladder volumes during filling. This study's objective was to determine the most accurate and precise ultrasound-based method of quantifying serial bladder volumes during urodynamics (UD). METHODS: Twelve female participants with OAB completed an extended UD procedure with the addition of serial bladder ultrasound images captured once per minute...
2018: Bladder
https://www.readbyqxmd.com/read/29354622/safety-and-efficacy-of-catheter-direct-thrombolysis-in-management-of-acute-iliofemoral-deep-vein-thrombosis-a-systematic-review
#14
REVIEW
Ahmed Elbasty, James Metcalf
Purpose: Catheter direct thrombolysis (CDT) has been shown to be an effective treatment for deep venous thrombosis. The objective of the review is to improve safety and efficacy of the CDT by using ward based protocol, better able to predict complications and treatment outcome through monitoring of haemostatic parameters and clinical observation during thrombolysis procedure. Materials and Methods: MEDLINE, EMBASE, CENTRAL and Web of Science were searched for all articles on deep venous thrombosis, thrombolysis and correlations of clinical events (bleeding, successful thrombolysis) during thrombolysis with hemostatic parameters to March 2016...
December 2017: Vascular Specialist International
https://www.readbyqxmd.com/read/29354508/seminal-vesicle-schwannoma-presenting-as-rectal-pain-successful-robotic-assisted-excision
#15
Molly A Elmer-DeWitt, Bradley C Gill, Raman Unnikrishnan, Andrew J Stephenson
Schwannomas, not uncommon in the head and neck, rarely occur in the pelvis. Here we describe a seminal vesicle schwannoma, the first of its kind successfully excised via robotic surgery. An otherwise well 62 year-old male presented with a complaint of rectal pain. Colonoscopy identified a mass effect on the rectum, suggesting an external lesion. A computed tomography scan revealed a right seminal vesicle mass. Transrectal ultrasound guided biopsy returned a tissue diagnosis of schwannoma. To aid in operative planning, magnetic resonance imaging of the prostate and pelvis was obtained with and without contrast...
December 2017: Translational Andrology and Urology
https://www.readbyqxmd.com/read/29354219/impact-of-hypertension-severity-on-arterial-stiffness-cerebral-vasoreactivity-and-cognitive-performance
#16
Henrique Cotchi Simbo Muela, Valeria A Costa-Hong, Monica Sanches Yassuda, Michel Ferreira Machado, Ricardo de Carvalho Nogueira, Natalia C Moraes, Claudia Maia Memória, Thiago A Macedo, Edson Bor-Seng-Shu, Ayrton Roberto Massaro, Ricardo Nitrini, Luiz A Bortolotto
Aging, hypertension (HTN), and other cardiovascular risk factors contribute to structural and functional changes of the arterial wall. Objective: To evaluate whether arterial stiffness (AS) is related to cerebral blood flow changes and its association with cognitive function in patients with hypertension. Methods: 211 patients (69 normotensive and 142 hypertensive) were included. Patients with hypertension were divided into 2 stages: HTN stage-1 and HTN stage-2...
October 2017: Dementia & Neuropsychologia
https://www.readbyqxmd.com/read/29354195/senior-medical-students-awareness-of-radiation-risks-from-common-diagnostic-imaging-examinations
#17
Elena Scali, John Mayo, Savvas Nicolaou, Michael Kozoriz, Silvia Chang
Background: Senior medical students represent future physicians who commonly refer patients for diagnostic imaging studies that may involve ionizing radiation. The radiology curriculum at the University of British Columbia provides students with broad-based knowledge about common imaging examinations. The purpose of this study was to investigate students' awareness of radiation exposures and risks. Methods: An anonymous multiple-choice cross-sectional questionnaire was distributed to final year medical students to assess knowledge of radiation from common diagnostic examinations and radiation-related risks following completion of the longitudinal radiology curriculum, carried out over the four years of medical training...
December 2017: Canadian Medical Education Journal
https://www.readbyqxmd.com/read/29354167/neonatal-severe-hyperparathyroidism-secondary-to-a-novel-homozygous-casr-gene-mutation
#18
Noman Ahmad, Mona Bahasan, Balgees Abdulhadi Abdullah Al-Ghamdi, Halah Faleh Al-Enizi, Ali Saeed Al-Zahrani
Neonatal severe hyperparathyroidism (NSHPT) is a rare autosomal recessive disease. Children present within the first 6 months of life and more commonly in the first few weeks. Common presentation is poor feeding, polyuria, dehydration, lethargy, failure to thrive, hypotonia, gastrointestinal dysmotility, osteopenia and symptoms of respiratory distress due to a poorly developed chest cage. We present a case of a 2-month old girl with severe hypercalcemia and hyperparathyroidism. She was found to have a novel homozygous mutation in the acceptor splicing site of intron 4 (c...
September 2017: Clinical Cases in Mineral and Bone Metabolism
https://www.readbyqxmd.com/read/29354000/ultrasound-guided-intraoperative-radiofrequency-ablation-and-surgical-resection-for-liver-metastasis-from-malignant-gastrointestinal-stromal-tumors
#19
In Sun Yoon, Ji Hoon Shin, Kichang Han, Pyo Nyun Kim, Ki Hun Kim, Yoon-Koo Kang, Heung Kyu Ko
Objective: To evaluate the effectiveness, safety, and feasibility of intraoperative radiofrequency ablation (IORFA) under ultrasound guidance for the treatment of liver metastases from gastrointestinal stromal tumors (GISTs). Materials and Methods: From August 2009 to February 2017, 24 patients with liver metastases of GISTs underwent IORFA, 14 underwent concurrent IORFA and primary GIST resection, and 10 underwent IORFA to treat hepatic recurrence after previous primary GIST resection...
January 2018: Korean Journal of Radiology: Official Journal of the Korean Radiological Society
https://www.readbyqxmd.com/read/29353994/imaging-features-of-inflammatory-breast-disorders-a-pictorial-essay
#20
REVIEW
Po Wey Leong, Niketa Chandrakant Chotai, Supriya Kulkarni
Inflammatory breast disorders include a wide array of underlying causes, ranging from common benign infection, non-infectious inflammation and inflammation resulting from underlying breast malignancy. Because it is at times difficult to distinguish mastitis and breast cancer based on clinical features, awareness of detailed imaging features may be helpful for better management of inflammatory breast disorders. Therefore, this pictorial essay intends to demonstrate radiologic findings of a variety of inflammatory breast disorders, using selected cases with mammography, ultrasound and magnetic resonance images...
January 2018: Korean Journal of Radiology: Official Journal of the Korean Radiological Society
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