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intra-operative ultrasound

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https://www.readbyqxmd.com/read/28094422/predicting-the-need-for-trochleoplasty-in-canine-patellar-luxation-using-pre-and-intra-operative-assessments-of-trochlear-depth
#1
Julie Skovgaard Orthmand Hansen, Ken Lindeblad, Lene Buelund, James Miles
OBJECTIVES: To evaluate the repeatability and reproducibility of ultrasonographic femoral trochlear depth measurements and to compare ultrasonographic and intra-operative evaluations of femoral trochlear depth for predictive value in selecting trochleoplasty. METHODS: Repeatability and reproducibility of an ultrasonographic protocol were tested in a preclinical cadaveric study. Clinical patients undergoing corrective surgery for patellar luxation were evaluated preoperatively with ultrasound and intra-operatively using a depth gauge...
January 17, 2017: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
https://www.readbyqxmd.com/read/28094412/ultrasound-guided-approach-to-the-cervical-articular-process-joints-in-horses-a-validation-of-the-technique-in-cadavers
#2
Jessica Purefoy Johnson, John David Stack, Conor Rowan, Ian Handel, John Mark O'Leary
OBJECTIVES: To compare accuracy of the ultrasound-guided craniodorsal (CrD) approach with the dorsal (D) approach to the cervical articular process joints, and to evaluate the effect of transducer, needle gauge, and operator experience. METHODS: Cervical articular process joints from 14 cadaveric neck specimens were injected using either a D or CrD approach, a linear (13 MHx) or microconvex transducer (10 MHz), and an 18 or 20 gauge needle, by an experienced or inexperienced operator...
January 17, 2017: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
https://www.readbyqxmd.com/read/28093371/sonographically-guided-knee-meniscus-injections-feasibility-techniques-and-validation
#3
Michael R Baria, Jacob L Sellon, Dan Lueders, Jay Smith
BACKGROUND: There is a growing interest in the use of biologic agents such as platelet-rich plasma and mesenchymal stem/stromal cells to treat musculoskeletal injuries, including meniscal tears. Although prior research has documented the role of diagnostic ultrasound to evaluate meniscal tears, sonographically guided (SG) techniques to specifically deliver therapeutic agents into the meniscus have not been described. OBJECTIVE: To describe and validate SG injection techniques for the body and posterior horn of the medial and lateral meniscus...
January 13, 2017: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/28093301/protocol-driven-management-of-suspected-common-duct-stones
#4
Anthony Manning, Richard Frazee, Stephen Abernathy, Claire Isbell, Travis Isbell, Justin Regner, Yolanda Munoz Maldanado, Randall Smith
INTRO: Common duct stones can be diagnosed by magnetic resonance cholangiopancreatography (MRCP), endoscopic ultrasound/endoscopic retrograde cholangiopancreatography (EUS/ERCP), and intra-operative cholangiogram (IOC). In 2015, our group adopted a standard approach of preoperative EUS/ERCP followed by laparoscopic cholecystectomy for patients with an admission bilirubin over 4.0 (mg/dL). For bilirubin less than 4.0, laparoscopic cholecystectomy with IOC was the initial procedure. Post-operative EUS/ERCP with endoscopic sphincterotomy was pursued for positive IOC...
January 13, 2017: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/28089807/ultrasonography-detects-ulnar-nerve-dislocation-despite-normal-electrophysiology-and-magnetic-resonance-imaging
#5
Jared M Pisapia, Zarina S Ali, Eric D Hudgins, Viviane Khoury, Gregory G Heuer, Eric L Zager
BACKGROUND: Dislocation of the ulnar nerve (UN) occurs in a subset of patients with ulnar neuropathy. Electrodiagnostic and magnetic resonance imaging (MRI) studies are performed to support the clinical diagnosis. We report the case of a patient with ulnar neuropathy with normal electrodiagnostic and MRI studies but with ultrasound (US) showing UN dislocation, which prompted successful treatment by UN submuscular transposition. CASE DESCRIPTION: A healthy 15 year-old female softball player presented with right medial elbow pain and paresthesias of the fourth and fifth digits...
January 12, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28078737/3d-assessment-of-the-umbilical-vein-deviation-angle-uvda-for-the-prediction-of-liver-herniation-in-left-congenital-diaphragmatic-hernia
#6
Nicola Volpe, Eleonora Mazzone, Brunella Muto, Alice Suprani, Tiziana Fanelli, Christine Tita Kaihura, Andrea Dall'Asta, Giuseppe Pedrazzi, Carmine Del Rossi, Enrico Maria Silini, Cinzia Magnani, Paolo Volpe, Tullio Ghi, Tiziana Frusca
OBJECTIVES: To introduce a new sonographic marker of intrathoracic liver herniation in fetuses with left congenital diaphragmatic hernia (CDH) METHODS: In a consecutive series of fetuses with isolated CDH an ultrasound volume of the fetal abdomen was acquired. On this the offline calculation of the angle formed by the midline of the abdomen (joining the center of the vertebral body to the abdominal insertion of the umbilical cord) and a second line joining the center of the vertebral body to the intra-abdominal convexity of the umbilical vein was carried out (Umbilical Vein Deviation Angle or UVDA)...
January 12, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28073286/bipolar-plasmakinetic-enucleo-resection-of-the-prostate-our-exp%C3%A3-rience-with-245-patients-for-3-years-of-follow-up
#7
Ahmed Abou-Taleb, Waleed El-Shaer, Wael Saber, Tarek Gharib, Alaa Elshaer
OBJECTIVE: the aim of this study was to evaluate the safety, feasibility and effectiveness of bipolar transurethral plasmakinetic enucleation of the prostate (PKEP). PATIENTS AND METHOD: Between January 2010 and October 2013, 245 patients with lower urinary tract symptoms (LUTS) due to benign prostatic hyperplasia (BPH) underwent transurethral enucleation of prostate using bipolar plasma vaporization energy. They were evaluated pre-operatively by Full detailed history, examination especially digital rectal examination (DRE), routine pre-operative investigation, serum prostate-specific antigen (PSA), abdominal and trans-rectal ultrasonography (US) and Maximum flow rates (Qmax)...
January 10, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28057984/prospective-randomized-comparison-between-fluoroscopy-guided-ureteroscopy-versus-ureteroscopy-with-real-time-ultrasonography-for-the-management-of-ureteral-stones
#8
Vishwajeet Singh, Bimalesh Purkait, Rahul Janak Sinha
CONTEXT AND AIMS: Ureteroscopy is the definitive management for ureteric stone. Conventional ureteroscopy uses fluoroscopy guidance which has radiation exposure to patients as well as hospital staff. Ultrasound is a good radiation-free alternative for using in the urological procedure. With this background, we executed a prospective randomized trial comparing fluoroscopy-guided ureteroscopy versus ultrasound-guided ureteroscopy. SUBJECTS AND METHODS: Patients were randomized into two groups (41 into fluoroscopy and 41 into ultrasound group after exclusion) in a single center from July 2014 to March 2015...
October 2016: Urology Annals
https://www.readbyqxmd.com/read/28051047/evaluation-of-the-use-of-laparoscopic-guided-cholecystocholangiography-and-liver-biopsy-in-definitive-diagnosis-of-neonatal-cholestatic-jaundice
#9
Khalid Shreef, Abdullah Alhelal
BACKGROUND: Once it is established that a jaundiced infant has direct hyperbilirubinemia, the principal diagnostic concern is to differentiate hepatocellular from obstructive cholestasis. Traditional tests such as ultrasonography, percutaneous liver biopsy and technetium 99 m hepatobiliary iminodiacetic acid (HIDA) scan are often not sufficiently discriminating. Definitive exclusion of biliary atresia (BA) in the infant with cholestatic jaundice usually requires mini-laparotomy and intra-operative cholangiography...
October 2016: African Journal of Paediatric Surgery: AJPS
https://www.readbyqxmd.com/read/28048819/mo-b-brc-01-introduction
#10
J Prisciandaro
: Brachytherapy has proven to be an effective treatment option for prostate cancer. Initially, prostate brachytherapy was delivered through permanently implanted low dose rate (LDR) radioactive sources; however, high dose rate (HDR) temporary brachytherapy for prostate cancer is gaining popularity. Needle insertion during prostate brachytherapy is most commonly performed under ultrasound (U/S) guidance; however, treatment planning may be performed utilizing several imaging modalities either in an intra- or post-operative setting...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048591/tu-h-206-09-acceptance-testing-of-ultrasound-systems-for-shear-wave-elastography-measurements
#11
Z Long, D Tradup, P Song, S Stekel, S Chen, N Hangiandreou
PURPOSE: Acceptance testing of shear wave elastography on ten ultrasound systems is reported. Furthermore, variations in testing procedures related to coupling medium, number of operators, and phantom homogeneity were investigated. METHODS: Shear wave speed measurements were made on ten systems (GE LOGIQ E9 XDclear 2.0 ultrasound scanner with C1-6 and 9L transducers). Measurements were acquired using the CIRS Model 039 shear wave liver fibrosis phantoms ("soft" and "hard" phantoms, with stiffness of ∼3...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048248/su-f-t-44-a-comparison-of-the-pre-plan-intra-operative-plan-and-post-implant-dosimetry-for-a-prostate-implant-case-using-prefabricated-linear-polymer-encapsulated-pd-103
#12
R Sheu, A Powers, H McGee, R Stock, Y Lo
PURPOSE: To investigate the reproducibility and limitations of Pd-103 prostate brachytherapy using fixed length linear sources (CivaString). METHODS: An LDR prostate brachytherapy case which was preplanned on MR images with prefabricated linear polymer-encapsulated Pd-103 sources (CivaString) was studied and compared with ultrasound based intra-operative planning and CT based post-implant dosimetry. We evaluated the following parameters among the three studies: prostate geometry (volume and cross sectional area), needle position and alignment deviations, and dosimetry parameters (D90)...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048168/mo-b-brc-02-ultrasound-based-prostate-hdr
#13
Z Chang
: Brachytherapy has proven to be an effective treatment option for prostate cancer. Initially, prostate brachytherapy was delivered through permanently implanted low dose rate (LDR) radioactive sources; however, high dose rate (HDR) temporary brachytherapy for prostate cancer is gaining popularity. Needle insertion during prostate brachytherapy is most commonly performed under ultrasound (U/S) guidance; however, treatment planning may be performed utilizing several imaging modalities either in an intra- or post-operative setting...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048138/mo-b-brc-03-ct-based-prostate-hdr
#14
J Zoberi
: Brachytherapy has proven to be an effective treatment option for prostate cancer. Initially, prostate brachytherapy was delivered through permanently implanted low dose rate (LDR) radioactive sources; however, high dose rate (HDR) temporary brachytherapy for prostate cancer is gaining popularity. Needle insertion during prostate brachytherapy is most commonly performed under ultrasound (U/S) guidance; however, treatment planning may be performed utilizing several imaging modalities either in an intra- or post-operative setting...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047714/mo-b-brc-00-prostate-hdr-treatment-planning-considering-different-imaging-modalities
#15
Joann Prisciandaro
: Brachytherapy has proven to be an effective treatment option for prostate cancer. Initially, prostate brachytherapy was delivered through permanently implanted low dose rate (LDR) radioactive sources; however, high dose rate (HDR) temporary brachytherapy for prostate cancer is gaining popularity. Needle insertion during prostate brachytherapy is most commonly performed under ultrasound (U/S) guidance; however, treatment planning may be performed utilizing several imaging modalities either in an intra- or post-operative setting...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047486/mo-b-brc-04-mri-based-prostate-hdr
#16
F Mourtada
: Brachytherapy has proven to be an effective treatment option for prostate cancer. Initially, prostate brachytherapy was delivered through permanently implanted low dose rate (LDR) radioactive sources; however, high dose rate (HDR) temporary brachytherapy for prostate cancer is gaining popularity. Needle insertion during prostate brachytherapy is most commonly performed under ultrasound (U/S) guidance; however, treatment planning may be performed utilizing several imaging modalities either in an intra- or post-operative setting...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046837/su-f-t-42-mri-and-trus-image-fusion-as-a-mode-of-generating-more-accurate-prostate-contours
#17
M Petronek, A Purysko, S Balik, J Ciezki, E Klein, D Wilkinson
PURPOSE: Transrectal Ultrasound (TRUS) imaging is utilized intra-operatively for LDR permanent prostate seed implant treatment planning. Prostate contouring with TRUS can be challenging at the apex and base. This study attempts to improve accuracy of prostate contouring with MRI-TRUS fusion to prevent over- or under-estimation of the prostate volume. METHODS: 14 patients with previous MRI guided prostate biopsy and undergone an LDR permanent prostate seed implant have been selected...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28045236/usefulness-of-a-ct-guided-hookwire-marking-in-laparoscopic-partial-hepatectomy-for-hepatocellular-carcinoma-invisible-on-ultrasonography
#18
Kazuteru Monden, Hiroshi Sadamori, Masayoshi Hioki, Kanyu Nakano, Shinya Asami, Satoshi Ohno, Kyo Sasaki, Toru Ueki, Kazuhisa Yabushita, Mayu Uka, Tsuyoshi Hyodo, Kousaku Sakaguchi, Norihisa Takakura
INTRODUCTION: The intra-operative detection of hepatocellular carcinoma (HCC) by ultrasonography is indispensable for laparoscopic partial hepatectomy. However, it is occasionally difficult to localize an HCC on an ultrasound in chronic liver disease. Two cases of partial hepatectomy using hookwire marking under CT guidance are presented. MATERIALS AND SURGICAL TECHNIQUE: The location of the HCC was identified by CT scan, and the puncture site was determined. A hookwire system, made of a stainless steel hook, was used to localize the HCC...
February 2017: Asian Journal of Endoscopic Surgery
https://www.readbyqxmd.com/read/28043183/automated-3d-ultrasound-measurement-of-the-angle-of-progression-in-labor
#19
Elisa Montaguti, Nicola Rizzo, Gianluigi Pilu, Aly Youssef
OBJECTIVES: To assess the feasibility and reliability of an automated technique for the assessment of the angle of progression (AoP) in labor using three-dimensional (3D) ultrasound. METHODS: AoP was assessed using 3D transperineal ultrasound by two operators in 52 women in active labor to evaluate intra- and interobserver reproducibility. Furthermore, intermethod agreement between automated and manual techniques on 3D images, and between automated technique on 3D vs 2D images were evaluated...
January 2, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28039051/pediatric-robot-assisted-redo-pyeloplasty-with-buccal-mucosa-graft-a-novel-technique
#20
Jennifer J Ahn, Michael E Shapiro, Jonathan S Ellison, Thomas S Lendvay
OBJECTIVE: To report a novel approach of pediatric robot-assisted redo pyeloplasty with buccal mucosa graft (BMG). METHODS: An IRB-approved retrospective review of all patients undergoing robot-assisted redo pyeloplasty with BMG at our institution was performed. OPERATIVE DETAILS: For all patients, the following ports were used: one 8.5mm camera, two 8mm robotic, and one 5mm assistant. Initial dissection was performed laparoscopically and robotically, and the ureter was incised longitudinally along the anterior surface...
December 27, 2016: Urology
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