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https://www.readbyqxmd.com/read/28101770/factors-controlling-fetal-echocardiography-determine-the-diagnostic-accuracy-of-isolated-ventricular-septal-defect
#1
Jiao Chen, Liang Xie, Han-Min Liu
BACKGROUND: Fetal echocardiography (FECG) is a key screening tool for prenatal cardiac abnormalities. Herein, we examined the ultrasonic factors determining prenatal ultrasonic diagnosis of isolated ventricular septal defect (IVSD). METHODS: The diagnostic role of ultrasonic factors was investigated in patients in middle or late pregnancy, diagnosed with IVSD by FECG and confirmed using postnatal echocardiography. RESULTS: One hundred and six patients with IVSD were enrolled; the majority had perimembranous VSD...
January 19, 2017: World Journal of Pediatrics: WJP
https://www.readbyqxmd.com/read/28098726/assessment-of-retinal-blood-flow-in-diabetic-retinopathy-using-doppler-fourier-domain-optical-coherence-tomography
#2
Sowmya Srinivas, Ou Tan, Muneeswar G Nittala, Jennifer L Wu, Amani A Fazwi, David Huang, SriniVas R Sadda
PURPOSE: To evaluate retinal blood flow measurements in normal eyes and eyes with varying levels of diabetic retinopathy (DR) using Doppler Fourier-domain optical coherence tomography (FD-OCT). METHODS: Twenty-two eyes of 19 subjects, 10 with severe nonproliferative DR (NPDR) and 12 with proliferative DR (PDR), were compared with 44 eyes of 40 healthy control subjects. All eyes were scanned by RTvue FD-OCT. Color disk photographs and cube/volume scans of the optic nerve head were obtained...
January 16, 2017: Retina
https://www.readbyqxmd.com/read/28090635/sonographic-features-and-diagnosis-of-peripheral-schwannomas
#3
Fan Yang, Xian-Xiang Chen, Huo-Lin Wu, Ji-Fa Zhu, Yuan Chen, Ling-Fang Yu, Xiao-Juan Huang
BACKGROUND: To determine the sonographic features of peripheral schwannomas. METHODS: This retrospective study included 54 cases of schwannoma in 51 patients. Ultrasonography (US) and MRI were performed in all patients. The US features of each tumor were analyzed and compared with pathologic findings. The US target sign was compared with the MRI findings. RESULTS: On US, 53 of the 54 schwannomas had a regular shape and clear margins, and one had an irregular shape...
January 16, 2017: Journal of Clinical Ultrasound: JCU
https://www.readbyqxmd.com/read/28081326/the-effect-of-deep-sclerectomy-on-ocular-blood-flow-a-6-month-clinical-trial
#4
Arzu Özsoy, Murat Sinan Sarıcaoğlu, Mehtap Çavuşoğlu
BACKGROUND/AIM: To investigate the effect of deep sclerectomy on retrobulbar blood flow. MATERIALS AND METHODS: This prospective study included 20 eyes of 20 patients with open angle glaucoma. Color Doppler imaging (CDI) examinations were performed before and 2, 12, and 24 weeks after deep sclerectomy. Peak systolic velocity (PSV), end diastolic velocity (EDV), and resistance index (RI) were measured for the ophthalmic artery (OA), central retinal artery (CRA), and temporal and nasal short posterior ciliary arteries (SPCAs) at each examination and the results were compared...
December 20, 2016: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28077881/a-pilot-study-of-penile-hemodynamics-in-men-with-penile-curvatures
#5
A A Zaazaa, I Fathy, O Ayman, A Hassanin, H Ghanem
Penile curvature (PC) is bothersome to the patient. PC is either congenital or acquired. In most of the circulatory system, blood flows in a laminar profile with minimal energy expenditure. When a fluid passes in a curved tube, the laminar profile is disturbed and changed into a turbulent flow. It increases the energy expenditure and reduces the flow. Turbulent flow may have a role in the development of an atherosclerotic plaque and in localizing its site. The aim of this research was to study penile hemodynamics before and after correction of PC...
January 12, 2017: International Journal of Impotence Research
https://www.readbyqxmd.com/read/28076877/ultrasound-imaging-for-ovarian-and-deep-infiltrating-endometriosis
#6
Caterina Exacoustos, Errico Zupi, Emilio Piccione
The main challenges of imaging for endometriosis are the detection of nonovarian disease and the evaluation of the extension of the disease into pelvic structures. Transvaginal ultrasonography (TVS) has been proposed as the first-line imaging technique because it allows extensive exploration of the pelvis. The "typical" endometrioma is a unilocular cyst with homogeneous low-level echogenicity (ground glass echogenicity) of the cyst fluid. The use of color Doppler helps avoid classifying malignancies as endometriomas, defining the presence of vascular flow in papillations...
January 11, 2017: Seminars in Reproductive Medicine
https://www.readbyqxmd.com/read/28074808/demonstration-of-blood-flow-by-color-doppler-in-the-femoral-artery-distal-to-arterial-cannula-during-peripheral-venoarterial-extracorporeal-membrane-oxygenation
#7
K G Suresh Rao, T Muralikrishna, K R Balakrishnan
In spite of distal perfusion of the limb using a cannula, the limb can have ischemic events if there is an undetected kink or clot anywhere in the line or thrombus in the artery. There are several ways to monitor and assess the limb ischemia. Monitoring for clinical signs of limb ischemia like temperature change and pallor is reliable and mandatory. We report a method where we used color Doppler to document the blood flow. Curvilinear vascular probe of an echo machine is used to identify the flow in the distal femoral artery of the lower limb...
January 2017: Annals of Cardiac Anaesthesia
https://www.readbyqxmd.com/read/28073202/pseudoaneurysm-with-arteriovenous-fistula-of-the-prostate-after-pelvic-trauma-ultrasound-imaging
#8
Andrea B Galosi, Camilla Capretti, Luca Leone, Marco Tiroli, Daniele Cantoro, Massimo Polito
Pseudoaneurysm (PA) associated with an arteriovenous fistula (AVF) of the internal pudendal artery branches are very uncommon. We report a case of post-traumatic PA with AVF connected to Santorini plexus. Diagnosis was made with trans-rectal ultrasound (TRUS) after recurrent hematuria. TRUS reported a 1.7 × 1.4 × 1.5 cm anechoic area, on anterior prostate apex close to Santorini plexus. The use of color Doppler in this area revealed high flow velocity that was indicative for AVF. The feeding artery was a distal branch of the left pudenda artery...
December 30, 2016: Archivio Italiano di Urologia, Andrologia
https://www.readbyqxmd.com/read/28073201/azoospermic-patient-s-treatment-an-experience-of-a-pma-hospital-unit-and-role-of-ultrasonography
#9
Paolo Panella, Pietro Pepe, Placido Borzì, Maria Elena Vento, Michele Pennisi, Paolo Scollo
INTRODUCTION: Azoospermia causes about 10% of male infertility and the best therapeutic option is the retrieval of sperm from testis or epididymis. MATERIAL AND METHODS: From Juanary 2008 to June 2016, 92 men (median 36 years; range: 25-54 years) were submitted in 47 cases to TESE (testicular sperm extraction) and in 45 cases to PESA (percutaneous epididymal sperm aspiration) for secretory and obstructive azoospermia, respectively; moreover, all the patients previously underwent color Doppler ultrasound of the testis and transrectal ultrasound of the prostate...
December 30, 2016: Archivio Italiano di Urologia, Andrologia
https://www.readbyqxmd.com/read/28066866/left-ventricular-filling-pressure-by-septal-and-lateral-e-e-equally-predict-cardiovascular-events-in-the-general-population
#10
Joanna Nan Wang, Tor Biering-Sørensen, Peter Godsk Jørgensen, Jan Skov Jensen, Rasmus Mogelvang
PURPOSE: There exists no consensus on the site of E/e' measurement. This study aimed to evaluate the predictive value of septal and lateral E/e' along with the importance of their intra-individual difference. METHODS: In 1775 persons from the general population, peak early diastolic velocity (e') was obtained by color tissue Doppler at the septal and lateral mitral annular sites. The endpoint was combined of cardiovascular death or admission due to heart failure or acute myocardial infarction...
January 9, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28064231/effects-of-therapy-with-maraviroc-on-the-carotid-intima-media-thickness-in-hiv-1-hcv-co-infected-patients
#11
Paolo Maggi, Giuseppe Bruno, Francesco Perilli, Annalisa Saracino, Anna Volpe, Carmen Santoro, Nicoletta Ladisa, Gioacchino Angarano
AIM: To evaluate, in human immunodeficiency virus-hepatitis C virus co-infected patients, the impact of C-C chemokine receptor type 5 (CCR5) antagonist maraviroc-based antiretroviral therapy on the carotid intima media thickness and on atheromasic plaques. PATIENTS AND METHODS: In this pilot prospective study, 12 HIV-HCV co-infected patients underwent color-Doppler ultrasonography before and 48 weeks after switching to a dual therapy based on maraviroc plus protease inhibitors boosted with ritonavir...
January 2017: In Vivo
https://www.readbyqxmd.com/read/28063264/preimplantation-3d-ultrasound-current-uses-and-challenges
#12
Sushila Arya, Sanja Kupesic Plavsic
The preimplantation ultrasound (US) refers to targeted imaging of the uterus and adnexa prior to assisted reproductive techniques (ART) to optimize the infertility treatment outcomes. After a thorough evidence based literature review, we propose the use of transvaginal three-dimensional (3D) US during the early follicular phase. A systematic approach for 3D US examination consists of a detailed examination of the uterine shape, size and contour, evaluation of the endometrial thickness, volume, pattern and vascularity, and assessment of the junctional zone regularity, echogenicity and thickness...
January 7, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28058962/short-term-effect-of-ultrasound-guided-low-molecular-weight-hyaluronic-acid-injection-on-clinical-outcomes-and-imaging-changes-in-patients-with-rheumatoid-arthritis-of-the-ankle-and-foot-joints-a-randomized-controlled-pilot-trial
#13
Chien-Chih Wang, Si-Huei Lee, Hsiao-Yi Lin, Fu-Wei Liu, Hong-Jen Chiou, Rai-Chi Chan, Chen-Liang Chou
To determine whether hyaluronic acid (HA) injection into rheumatoid arthritis ankles and feet can achieve improvement in foot function and reduce synovial hyper-vascularization. Forty-four patients with RA having unilateral or bilateral painful ankle and foot involvement (N = 75) were studied. All the patients were randomized to receive HA (N = 40) or lidocaine (LI) (N = 35) injection at 2-week intervals; Clinical assessments were performed using a visual analog scale (VAS) and foot function index (FFItotal) including subscales of pain (FFIpain) before injection at baseline, 4 weeks (first evaluation) and 12 weeks (secondary evaluation)...
January 6, 2017: Modern Rheumatology
https://www.readbyqxmd.com/read/28057900/evaluation-of-the-ureteral-jet-in-dogs-using-doppler-ultrasonography
#14
Hyunjung Oh, Seongsoo Kim, Suyeon Kim, Jeosoon Lee, Sookyung Yun, Junghee Yoon, Joohyun Jung, Mincheol Choi
Ureteral jets are caused by the forceful ejection of urine from the vesicoureteral junction into the urinary bladder. We aimed to identify distinct ureteral jets in dogs by using color Doppler ultrasonography (US), provide insight into ureteral obstruction, and facilitate the study of urodynamics and vesicoureteric sphincter function using pulsed Doppler US. Color Doppler US was applied to detect urinary flow from the right ureteral orifice in eight healthy beagles. Under anesthesia, 0.9% saline (2.5 ml/kg/h) and furosemide (0...
January 4, 2017: Journal of Veterinary Science
https://www.readbyqxmd.com/read/28046378/su-g-iep4-01-a-simple-doppler-flow-phantom-design-for-evaluation-of-doppler-ultrasound-systems
#15
B Ozus, J Chen, J Beeson, J Feng
PURPOSE: There are a number of commercially available flow phantoms for evaluating Doppler ultrasound systems. However, it may be hard to justify purchasing these phantoms if a hospital has a small number of ultrasound units to evaluate. In this study, we developed a simple flow phantom with parts available in a hospital to evaluate Doppler ultrasound systems. METHODS: To create a flow reserve, one end of an IV line was connected to a 100 ml saline bag and the line was filled with saline...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28039937/quantitative-evaluation-of-the-effects-of-urinary-stone-composition-and-size-on-color-doppler-twinkling-artifact-a-phantom-study
#16
Mengmeng Shang, Xiao Sun, Qing Liu, Jie Li, Dandan Shi, Song Ning, Lin Cheng
OBJECTIVES: The present study was conducted to quantitatively evaluate the influence of urinary stone composition and size on color Doppler twinkling artifact. METHODS: Calcium oxalate monohydrate (COM), apatite, L-cystine, and uric acid (UA) stone phantoms with 10 different sizes were prepared artificially and embedded in the renal sinus of porcine kidneys in vitro. Color Doppler ultrasound scanning was performed on the phantoms and TA pictures were recorded. The length of the twinkling artifact (TAL) and width of twinkling artifact (TAW) were measured...
December 31, 2016: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28038826/using-color-flow-detection-of-air-insufflation-to-improve-accuracy-in-verifying-nasogastric-tube-position
#17
Kin Wa Wong, Hok Hang Chan, Chi Pang Wong, Ming Yin Chan, Jeffrey Cheuk Wai Chau, Tai Wai Wong
OBJECTIVES: Previous studies have shown that ultrasonography (USG), as an alternative to radiography, has a good accuracy in confirming nasogastric tube (NGT) position. Color flow detection of air insufflation is a novel approach in verifying NGT position. In our study, we aimed at evaluating its sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and accuracy in confirming the NGT position, as compared with 2-dimensional (2D) USG. METHODS: The study was conducted on adult patients over a period of 38months in an emergency department in Hong Kong...
December 21, 2016: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28032907/multiparametric-sonography-of-hematologic-malignancies-of-the-testis-grayscale-color-doppler-and-contrast-enhanced-ultrasound-and-strain-elastographic-appearances-with-histologic-correlation
#18
Carolina Kachramanoglou, Vasileios Rafailidis, Marianna Philippidou, Michele Bertolotto, Dean Y Huang, Annamaria Deganello, Maria E Sellars, Paul S Sidhu
Primary testicular lymphoma is rare and appears with nonspecific findings on grayscale and color Doppler sonography. We present 8 patients further examined with contrast-enhanced sonography, strain elastography, and histologic analysis after orchiectomy. Seven of 8 patients had a diagnosis of large B-cell lymphoma, and 1 of 8 had a diagnosis of granulocytic sarcoma, with solitary lesions (2 of 8), multiple lesions (3 of 8), or entire testicular involvement (3 of 8). Lesions appeared hypoechoic (7 of 8) or isoechoic (1 of 8), all with increased vascularity on color Doppler sonography and a nonbranching linear pattern of intratumoral vessels (7 of 8)...
December 29, 2016: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28027619/is-there-any-difference-between-seminomas-and-nonseminomatous-germ-cell-tumors-on-shear-wave-elastography-a-preliminary-study
#19
Atilla Suleyman Dikici, Mehmet Emin Er, Deniz Alis, Cesur Samanci, Fethi Emre Ustabasioglu, Cetin Demirdag, Haydar Durak, Fatih Kantarci, Ismail Mihmanli
OBJECTIVES: The purpose of this study was to evaluate the ability of shear wave elastography (SWE) to differentiate seminomas from nonseminomatous germ cell tumors. METHODS: Approval for this retrospective study was obtained from the local Ethics Committee of Istanbul University Cerrahpasa Medical School. Fifteen patients with malignant testicular lesions were examined by grayscale sonography, color or power Doppler sonography, and SWE between February 2011 and October 2015...
December 2016: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28024912/early-diagnosis-and-outcome-prediction-of-neonatal-hypoxic-ischemic-encephalopathy-with-color-doppler-ultrasound
#20
B Guan, C Dai, Y Zhang, L Zhu, X He, N Wang, H Liu
PURPOSE: To describe the ultrasound presentation of the brain and cerebral hemodynamics in neonates with hypoxic-ischemic encephalopathy (HIE) by comparison with control subjects. MATERIAL AND METHODS: During June 2012 to April 2013, full term neonates who had clinical evidence of HIE were enrolled. Healthy newborns without HIE were used as a control group. Cerebral parenchyma, size of lateral ventricles and hemodynamic parameters of cerebral arteries were studied using two-dimensional duplex and color Doppler ultrasound...
December 23, 2016: Diagnostic and Interventional Imaging
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