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Ultrasound guidance

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https://www.readbyqxmd.com/read/29050163/-preliminary-outcomes-of-percutaneously-looped-thread-transection-in-the-surgical-treatment-of-stenosing-tenosynovitis
#1
C L Wang, S F Huang, Z Q Wang, Q L Ge, X G Dong
Objective: To investigate the percutaneously looped thread transection for treatment of stenosing tenosynovitis and evaluate its treatment outcome. Methods: From January 2014 to October 2016, Eighty-four patients with stenosing tenosynovitis were randomly divided into the open decompressionand group (42 cases) and percutaneously looped thread transection group (42 cases) in Department of Orthopedics, Affiliated Laiwu Hospital of Taishan Medical College. Incision near the digit horizontal stripes, tendon sheath were cut off in the open decompressionand group...
October 10, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29049808/cold-inducible-ribonucleic-acid-binding-protein-attenuates-acute-kidney-injuries-after-deep-hypothermic-circulatory-arrest-in-rats
#2
Lei Yu, Tianxiang Gu, Yu Liu, Xuan Jiang, Enyi Shi
OBJECTIVES: Cold-inducible ribonucleic acid-binding protein (CIRP) has been identified to play a role in the antiapoptotic effect of hypothermia. We sought to investigate the renoprotection of CIRP in a rat model of deep hypothermic circulatory arrest. METHODS: Overexpression and knockdown of CIRP were achieved in vivo by directly injecting lentivirus vectors containing packaging lentivirus (pL)/internal ribosome entry site (IRES)/green fluorescent protein (GFP)-CIRP or pL/short hairpin RNA (shRNA)/F-cold inducible RNA binding protein (F-CIRP)-A into the renal parenchyma of rats 7 days before deep hypothermic circulatory arrest under the ultrasound guidance...
August 14, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29049072/effect-of-stellate-ganglion-block-on-the-regional-hemodynamics-of-the-upper-extremity-a-randomized-controlled-trial
#3
Min Kyoung Kim, Myung Sub Yi, Pyung Gul Park, Hyun Kang, Jae Sung Lee, Hwa Yong Shin
BACKGROUND: The success of stellate ganglion block (SGB) is traditionally determined on the basis of findings such as Horner's syndrome, temperature rise in the face, hyperemia of the tympanic membrane, and nasal congestion. However, decreases in vascular resistance and increases in blood flow in the arm may be more meaningful findings. To date, the effect of SGB on the regional hemodynamics of the arm has not been evaluated using pulsed-wave Doppler ultrasound. METHODS: A total of 52 patients who were to undergo orthopedic surgery of the forearm were randomly assigned to either the mepivacaine group (SGB with 5 mL of 0...
October 17, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29048709/comparison-of-percutaneous-dilatational-tracheostomy-guided-by-ultrasound-and-bronchoscopy-in-critically-ill-obese-patients
#4
Jieqiong Song, Lizhen Xuan, Wei Wu, Duming Zhu, Yijun Zheng
OBJECTIVES: This study aimed to compare the efficacy and safety of percutaneous dilatational tracheostomy (PDT) with ultrasound (US) or bronchoscopic guidance for critically ill patients, notably obese patients. METHODS: This work was a retrospective study. The study included mechanically ventilated patients who underwent PDT from August 2013 to July 2015 in the Department of Critical Care Medicine of Zhongshan Hospital. The patients were classified according to the different guidance methods during tracheotomy and their body mass index in the following 4 groups: normal bronchoscopy group, normal US group, obese bronchoscopy group, and obese US group...
October 19, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/29045073/effectiveness-of-ultrasound-guided-compared-to-blind-steroid-injections-in-the-treatment-of-carpal-tunnel-syndrome
#5
Mark H Greenberg, James W Fant
We read with great interest the article by Evers and colleagues.(1) Their data confirms what many of us who utilize ultrasound-guided injections have suspected - that is, improved efficacy and decreased hazard of treatment using ultrasound-guided injection for carpal tunnel (CT) syndrome. The authors did comment about additional potential benefits of ultrasound (US) guidance including decreased risk of median nerve and surrounding tissue damage. In addition they described that ultrasound visualization of structures within the CT contributes to the diagnosis...
October 17, 2017: Arthritis Care & Research
https://www.readbyqxmd.com/read/29044926/optical-coherence-tomography-guided-carotid-artery-stent-procedure-technique-and-potential-applications
#6
Suhail Dohad, Alexander Zhu, Sandeep Krishnan, Frances Wang, Serena Wang, Justin Cox, Timothy D Henry
OBJECTIVES: To (1) present a guide on how to perform optical coherence tomography (OCT) in carotid artery stenting (CAS), to (2) highlight several instructive cases illustrating OCT-guidance as an interventional strategy, and to (3) present the largest case-series of OCT-guided CAS performed in North America, demonstrating its feasibility as an imaging modality in this setting. BACKGROUND: OCT is an intravascular imaging method that captures images with an axial resolution 10 times higher than intravascular ultrasound...
October 16, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/29042787/perinatal-and-follow-up-outcome-study-of-fetal-anomalies-with-multidisciplinary-consultation
#7
Genxia Li, Na Yang, Mingkun Xie, Yajuan Xu, Ning Han, Qi Chen, Hezhou Li, Yueli Wu, Chunhua Cheng, Yuhong Wang, Man Zhou, Bo Xia, Shuhua Guo, Shihong Cui
SYNOPSIS: The establishment of a multidisciplinary consultation system is necessary for the diagnosis of complicated fetal anomalies. PURPOSE: We aimed to investigate the incidences of different types of fetal anomalies and the influence of multidisciplinary consultation on fetal prognosis. PATIENTS AND METHODS: Multidisciplinary specialists include obstetricians, pediatricians, pediatric surgeons, and experts of ultrasound department and genetic counseling...
2017: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/29042775/mesoporous-composite-nanoparticles-for-dual-modality-ultrasound-magnetic-resonance-imaging-and-synergistic-chemo-thermotherapy-against-deep-tumors
#8
Nan Zhang, Ronghui Wang, Junnian Hao, Yang Yang, Hongmi Zou, Zhigang Wang
High-intensity focused ultrasound (HIFU) is a promising and noninvasive treatment for solid tumors, which has been explored for potential clinical applications. However, the clinical applications of HIFU for large and deep tumors such as hepatocellular carcinoma (HCC) are severely limited by unsatisfactory imaging guidance, long therapeutic times, and damage to normal tissue around the tumor due to the high power applied. In this study, we developed doxorubicin/perfluorohexane-encapsulated hollow mesoporous Prussian blue nanoparticles (HMPBs-DOX/PFH) as theranostic agents, which can effectively guide HIFU therapy and enhance its therapeutic effects in combination with chemotherapy, by decreasing the cavitation threshold...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29033272/graduating-surgical-residents-lack-competence-in-critical-care-ultrasound
#9
Renuka Tripu, Margaret H Lauerman, Daniel Haase, Syeda Fatima, Jacob Glaser, Cassandra Cardarelli, Thomas M Scalea, Sarah Murthi
OBJECTIVE: Ultrasound provides accessible imaging for bedside diagnostics and procedural guidance, but may lead to misdiagnosis in untrained users. The main objective of this study was to determine observed and self-perceived competence with critical care ultrasound in graduated general surgery residents. DESIGN: The design of this study was a retrospective review. Ultrasound training program records were reviewed for number of prior ultrasound examinations performed, self-perceived competence, observed competence on faculty examinations, and intended future use of individual critical care ultrasound examinations...
October 13, 2017: Journal of Surgical Education
https://www.readbyqxmd.com/read/29027690/ultrasound-guided-posterior-femoral-cutaneous-nerve-block-a-cadaveric-study
#10
Christopher S Johnson, Rebecca L Johnson, Adam D Niesen, David E Stoike, Wojciech Pawlina
OBJECTIVES: To identify any anatomic barriers to local anesthetic spread between the sciatic nerve (SN) and the posterior femoral cutaneous nerve (PFCN) at the level of the infragluteal crease and to describe a potential technique for an ultrasound (US)-guided subgluteal PFCN block in a cadaveric model. METHODS: Bilateral US-guided subgluteal injections of a colored latex solution were performed around the SN (15 mL) and PFCN (10 mL) in 4 unembalmed cadavers, for a total of 8 cadaver thighs...
October 13, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/29017808/a-novel-technique-for-duplex-guided-office-based-interventions-for-patients-with-acute-arteriovenous-fistula-occlusion
#11
Afsha Aurshina, Enrico Ascher, Anil Hingorani, Natalie Marks
OBJECTIVE: The purpose of the study was to aggressively salvage acutely occluded arteriovenous fistulas (AVFs) using duplex imaging as the sole imaging modality for percutaneous transluminal angioplasty of acutely thrombosed AVF. METHODS: Over a period of 12 months, 14 patients with acute thrombosis of their AVFs underwent 18 procedures in a single center for AVF salvage. All 14 patients presented with chronic renal failure, and six were diabetic. All patients were treated under duplex guidance alone...
October 7, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28994720/augmented-reality-as-a-telemedicine-platform-for-remote-procedural-training
#12
Shiyao Wang, Michael Parsons, Jordan Stone-McLean, Peter Rogers, Sarah Boyd, Kristopher Hoover, Oscar Meruvia-Pastor, Minglun Gong, Andrew Smith
Traditionally, rural areas in many countries are limited by a lack of access to health care due to the inherent challenges associated with recruitment and retention of healthcare professionals. Telemedicine, which uses communication technology to deliver medical services over distance, is an economical and potentially effective way to address this problem. In this research, we develop a new telepresence application using an Augmented Reality (AR) system. We explore the use of the Microsoft HoloLens to facilitate and enhance remote medical training...
October 10, 2017: Sensors
https://www.readbyqxmd.com/read/28993089/a-two-cohort-feasibility-study-on-polyglycolic-acid-yarn-implantation-for-abolition-of-saphenous-vein-reflux
#13
Thomas M Proebstle, Bettina Kleis-Fischer, Thomas Möhler, Oliver Goeckeritz, Ian J Franklin, Jose I Almeida
OBJECTIVE: The objective of this study was to evaluate the feasibility and safety of a polyglycolic acid (PGA) yarn implant for nonthermal ablation of saphenous vein reflux. METHODS: In two consecutive cohort studies (TAHOE I and TAHOE II), the feasibility of abolition of great saphenous vein (GSV) reflux by implantation of a PGA yarn was tested under ultrasound guidance in 51 and 30 patients, respectively. The use of tumescent local anesthesia was not required...
October 6, 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28991950/hospital-privileging-practices-for-bedside-procedures-a-survey-of-hospitalist-experts
#14
Trevor P Jensen, Nilam J Soni, David M Tierney, Brian P Lucas
Many hospitalists are routinely granted hospital privileges to perform invasive bedside procedures, but criteria for privileging are not well described. We conducted a survey of 21 hospitalist procedure experts from the Society of Hospital Medicine Point-of-Care Ultrasound Task Force to better understand current privileging practices for bedside procedures and how those practices are perceived. Only half of all experts reported their hospitals require a minimum number of procedures performed to grant initial (48%) and ongoing (52%) privileges for bedside procedures...
October 2017: Journal of Hospital Medicine: An Official Publication of the Society of Hospital Medicine
https://www.readbyqxmd.com/read/28991766/comparative-analysis-of-ultrasound-guided-central-venous-catheterization-compared-to-blind-catheterization
#15
Darko Sazdov, Marija Jovanovski Srceva, Zorka Nikolova Todorova
INTRODUCTION: Central venous catheterization is performed by the landmark method and ultrasound guided method. The purpose of the study was to compare the success, average number of attempts, average time to return of blood, and complication rate between the two methods. MATERIAL AND METHODS: This was a prospective study done in the Intensive Care Unit of the Acibadem Sistina Clinical Hospital, in Skopje. There were 400 patients in need of central venous catheter and they were prospectively randomized in two groups...
September 1, 2017: Prilozi (Makedonska Akademija Na Naukite i Umetnostite. Oddelenie za Medicinski Nauki)
https://www.readbyqxmd.com/read/28983903/dynamic-ultrasound-guided-short-axis-needle-tip-navigation-technique-vs-landmark-technique-for-difficult-saphenous-vein-access-in-children-a-randomised-study
#16
S Hanada, M T Van Winkle, S Subramani, K Ueda
Dynamic ultrasound-guided short-axis needle tip navigation is a novel technique for vascular access. After venipuncture, the needle and catheter are further advanced within the vessel lumen under real-time ultrasound guidance with constant visualisation of the needle tip in the short-axis view. This can minimise the risk of transfixing the cannulated vessel. We compared two techniques for non-visible saphenous vein cannulation under general anaesthesia in children weighing ≥ 3 kg and less than four years of age: dynamic ultrasound-guided short-axis needle tip navigation technique (ultrasound group) vs...
October 6, 2017: Anaesthesia
https://www.readbyqxmd.com/read/28983677/reduced-dose-c-arm-computed-tomography-applications-at-a-pediatric-institution
#17
Michael Acord, Sphoorti Shellikeri, Seth Vatsky, Abhay Srinivasan, Ganesh Krishnamurthy, Marc S Keller, Anne Marie Cahill
BACKGROUND: Reduced-dose C-arm computed tomography (CT) uses flat-panel detectors to acquire real-time 3-D images in the interventional radiology suite to assist with anatomical localization and procedure planning. OBJECTIVE: To describe dose-reduction techniques for C-arm CT at a pediatric institution and to provide guidance for implementation. MATERIALS AND METHODS: We conducted a 5-year retrospective study on procedures using an institution-specific reduced-dose protocol: 5 or 8 s Dyna Rotation, 248/396 projection images/acquisition and 0...
October 5, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28981204/a-real-time-prediction-model-for-post-irradiation-malignant-cervical-lymph-nodes
#18
Wu-Chia Lo, Po-Wen Cheng, Pei-Wei Shueng, Chen-Hsi Hsieh, Yih-Leong Chang, Li-Jen Liao
OBJECTIVE: To establish a real-time predictive scoring model based on sonographic characteristics for identifying malignant cervical lymph nodes (LNs) in cancer patients after neck irradiation. METHODS: One-hundred-forty-four irradiation-treated patients underwent ultrasonography and ultrasound-guided fine needle aspirations (USgFNAs), and the resultant data were used to construct a real-time and computerized predictive scoring model. This scoring system was further compared with our previously proposed prediction model...
October 5, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28979659/pan-asian-consensus-key-recommendations-for-adapting-the-world-congress-of-dermatology-consensus-on-combination-treatment-with-injectable-fillers-toxins-and-ultrasound-devices-in-asian-patients
#19
Yates Y Y Chao, Chiranjiv Chhabra, Niamh Corduff, Sabrina Guillen Fabi, Martina Kerscher, Stephanie C K Lam, Tatjana Pavicic, Berthold Rzany, Peter H L Peng, Atchima Suwanchinda, Fang-Wen Tseng, Kyle K Seo
BACKGROUND. The demand for minimally invasive aesthetic procedures has driven requests by physicians for guidance on their use in Asian patients, who have unique cultural preferences, social trends, and anatomy. However, few guidelines exist, particularly on combination treatment strategies for different facial shapes or indications such as the modification of face shapes to the "oval ideal."Physicians must, therefore, apply Caucasian patient-optimized guidelines to their Asian patients. METHODS. Eleven specialists developed a consensus on the use of botulinum toxin A (BoNT-A), calcium hydroxylapatite (CaHA) and hyaluronic acid (HA) fillers, and microfocused ultrasound with visualization (MFU-V) devices in Asian patients on upper-, middle-, and lower-face indications, including strategies to modify different facial shapes to the oval shape...
August 2017: Journal of Clinical and Aesthetic Dermatology
https://www.readbyqxmd.com/read/28976313/assessment-of-rigid-registration-quality-measures-in-ultrasound-guided-radiotherapy
#20
Roozbeh Shams, Yiming Xiao, Francois Hebert, Matthew Abramowitz, Rupert Brooks, Hassan Rivaz
Image guidance has become the standard of care for patient positioning in radiotherapy, where image registration is often a critical step to help manage patient motion. However, in practice, verification of registration quality is often adversely affected by difficulty in manual inspection of 3D images and time constraint, thus affecting the therapeutic outcome. Therefore, we proposed to employ both bootstrapping and the supervised learning methods of linear discriminant analysis and random forest to help robustly assess registration quality in ultrasound-guided radiotherapy...
September 28, 2017: IEEE Transactions on Medical Imaging
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