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Ultrasound guided regional

Thomas Günther Lesser, Carsten Boltze, Harald Schubert, Frank Wolfram
Background: In recent years, high intensity focused ultrasound (HIFU) has gained increasing clinical interest as a non-invasive method for local therapy of liver malignancies. HIFU treatment of tumours and metastases in the liver dome is limited due to the adjacent ultrasound blocking lung. One-lung flooding (OLF) enables complete sonography of lung and adjoining organs including liver. HIFU liver ablation passing through the flooded lung could enable a direct intercostal beam path and thus improve dose deposition in liver...
2016: International Journal of Medical Sciences
Arunangshu Chakraborty, Rakhi Khemka, Taniya Datta
The practice of regional anaesthesia is rapidly changing with the introduction of ultrasound into the working domain of the anaesthesiologist. New techniques are being pioneered. Among the recent techniques, notable are the truncal blocks, for example, the transversus abdominis plane block, rectus sheath block, hernia block and quadratus lumborum block in the abdomen and the pectoral nerves (Pecs) block 1 and 2, serratus anterior plane block and intercostal nerve block. This narrative review covers the brief anatomical discourse along with technical description of the ultrasound-guided truncal blocks...
October 2016: Indian Journal of Anaesthesia
Alexandra Scharf, Shannon P Holmes, Merrilee Thoresen, Jennifer Mumaw, Alaina Stumpf, John Peroni
Ultrasound-guided intralesional injection of mesenchymal stem cells (MSCs) is held as the benchmark for cell delivery in tendonitis. The primary objective of this study was to investigate the immediate cell distribution following intralesional injection of MSCs. Unilateral superficial digital flexor tendon (SDFT) lesions were created in the forelimb of six horses and injected with 10 × 10(6) MSCs labeled with superparamagnetic iron oxide nanoparticles (SPIOs) under ultrasound guidance. Assays were performed to confirm that there were no significant changes in cell viability, proliferation, migration, or trilineage differentiation due to the presence of SPIOs...
2016: Stem Cells International
Won Soek Chae, Sang Hyun Kim, Sung Hwan Cho, Joon Ho Lee, Mi Sun Lee
The superficial peroneal nerve is vulnerable to damage from ankle sprain injuries and fractures as well as surgery to this region. And it is also one of the most commonly involved nerves in complex regional pain syndrome type II in the foot and ankle region. We report two cases of ultrasound-guided pulsed radiofrequency treatment of superficial peroneal nerve for reduction of allodynia in CRPS patients.
October 2016: Korean Journal of Pain
Erik Smistad, Daniel Høyer Iversen, Linda Leidig, Janne Beate Lervik Bakeng, Kaj Fredrik Johansen, Frank Lindseth
Ultrasound-guided regional anesthesia can be challenging, especially for inexperienced physicians. The goal of the proposed methods is to create a system that can assist a user in performing ultrasound-guided femoral nerve blocks. The system indicates in which direction the user should move the ultrasound probe to investigate the region of interest and to reach the target site for needle insertion. Additionally, the system provides automatic real-time segmentation of the femoral artery, the femoral nerve and the two layers fascia lata and fascia iliaca...
October 7, 2016: Ultrasound in Medicine & Biology
Lina Garcia, Luis Tresierra, Marjorie Garcerant, Hipolito Duran, Benedetto Ielpo, Eduardo Diaz, Isabel Fabra, Riccardo Caruso, Luis Malavé, Susana Prados, Susana Tabernero, Yolanda Quijano, Emilio Vicente
The radio guided occult lesion localization (ROLL) technique has been in use since the mid-90's, mainly in breast surgery. It is nowadays used for many oncological pathologies such as parathyroid lesions, melanoma, and colorectal tumors. We present the case of a patient with an 11 mm left meso rectal solitary recurrence of a primary ovarian cancer in whom the ROLL technique was used to identify the implant. The radio isotope was introduced with a 22g needle with Endoscopic ultrasound technique using an Echo lineal endoscope...
September 29, 2016: Journal of Minimally Invasive Gynecology
Renu Parmar, Vijay Reddy, Satheesh Kumar Reddy, Deepti Reddy
INTRODUCTION: A wide variety of factors affect the success of orthodontic miniscrews in clinical situations, including thickness of the soft tissues. Our objectives were to assess area-related and sex-related differences in the soft tissue thicknesses of the buccal attached gingiva of the maxilla and the mandible, and the palatal masticatory mucosa at common orthodontic miniscrew placement sites, and to prescribe a guideline for miniscrew selection for a predictable clinical outcome. METHODS: The sample consisted of 32 randomly selected adults in the age group of 20 to 25 years...
October 2016: American Journal of Orthodontics and Dentofacial Orthopedics
Katherine H Dobie, Yaping Shi, Matthew S Shotwell, Warren S Sandberg
STUDY OBJECTIVE: Regional anesthesia and analgesia for shoulder surgery is most commonly performed via interscalene nerve block. We developed an ultrasound-guided technique that specifically targets the C5 nerve root proximal to the traditional interscalene block and assessed its efficacy for shoulder analgesia. DESIGN: Prospective case series. SETTING: Vanderbilt Bone and Joint Surgery Center. PATIENTS: Patients undergoing shoulder arthroscopy at an ambulatory surgery center...
November 2016: Journal of Clinical Anesthesia
Michael J Barrington, Samuel R Gledhill, Roman Kluger, Alexander L Clarke, Daniel M Wong, Henry Davidson, Rowan Thomas
BACKGROUND: Ultrasound-guided techniques improve outcomes in regional anesthesia when compared with traditional techniques; however, this assertion has not been studied with novices. The primary objective of this study was to compare sensory and motor block after axillary brachial plexus block when performed by novice trainees allocated to an ultrasound- or nerve-stimulator-guided group. A secondary objective was to compare the rates of skill acquisition between the 2 groups. METHODS: This study was a prospective, randomized, observer-blinded, 2-arm controlled trial...
September 28, 2016: Regional Anesthesia and Pain Medicine
Ling Ma, Rongrong Guo, Zhiqiang Tian, Rajesh Venkataraman, Saradwata Sarkar, Xiabi Liu, Peter T Nieh, Viraj V Master, David M Schuster, Baowei Fei
This paper proposes a new semi-automatic segmentation method for the prostate on 3D transrectal ultrasound images (TRUS) by combining the region and classification information. We use a random walk algorithm to express the region information efficiently and flexibly because it can avoid segmentation leakage and shrinking bias. We further use the decision tree as the classifier to distinguish the prostate from the non-prostate tissue because of its fast speed and superior performance, especially for a binary classification problem...
February 27, 2016: Proceedings of SPIE
Yeon-Dong Kim, Seon-Jeong Park, Junho Shim, Hyungtae Kim
The recently introduced pectoral nerve (Pecs) block is a simple alterative to the conventional thoracic paravertebral block or epidural block for breast surgery. It produces excellent analgesia and can be used to provide balanced anesthesia and as a rescue block in cases where performing a neuraxial blockade is not possible. In the thoracic region, a neuraxial blockade is often used to manage zoster-associated pain. However, this can be challenging for physicians due to the increased risk of hemodynamic instability in the upper thoracic level, and comorbid and contraindicated medical conditions such as coagulopathy...
September 20, 2016: Journal of Anesthesia
C Scala, S McDonnell, F Murphy, U Leone Roberti Maggiore, A Khalil, A Bhide, B Thilaganthan, A T Papageorghiou
OBJECTIVES: To establish the diagnostic accuracy of obstetric ultrasound at a tertiary fetal medicine centre in the prenatal detection of unilateral and bilateral MCDK in fetuses where this condition was suspected; and to undertake a systematic review of the literature on this topic. METHODS: Retrospective observational study of all cases with an antenatal diagnosis of either unilateral or bilateral MCDK referred to a regional tertiary fetal medicine unit between 1997 and 2015...
September 19, 2016: Ultrasound in Obstetrics & Gynecology
P Ye, D-Q Ma, G-Y Yu, Y Gao, X Peng
The objective of this study was to investigate the clinical features of Kimura's disease in the head and neck region and to compare the local recurrence rate between three therapies used for the treatment of this disease. The clinicopathological information of 46 hospitalized patients suffering from Kimura's disease in the head and neck region over a 10-year period was reviewed retrospectively. All lesions were clinically observed in the head and neck region. These 46 patients underwent a total of 58 treatments; nine patients underwent multiple treatments due to local recurrence...
September 7, 2016: International Journal of Oral and Maxillofacial Surgery
Jordon T Walker, Nirmish Singla, Claus G Roehrborn
A rise in antimicrobial resistant uropathogens has generated a global increase in infections following transrectal ultrasound-guided prostate biopsy (TRUS-Bx). We performed a systematic search of Ovid MEDLINE® and PubMed to comprehensively review strategies to mitigate infections. Of 1664 articles retrieved, 62 were included. The data suggest that augmented prophylaxis and povidone-iodine bowel preparation warrant consideration in regions with high rates of antimicrobial resistance. Transperineal biopsy may be a safer, equally effective alternative to TRUS-Bx in select cases...
2016: Reviews in Urology
Ki Jinn Chin, Javier E Cubillos, Husni Alakkad
BACKGROUND: Regional anaesthesia comprising axillary block of the brachial plexus is a common anaesthetic technique for distal upper limb surgery. This is an update of a review first published in 2006 and previously updated in 2011 and 2013. OBJECTIVES: To compare the relative effects (benefits and harms) of three injection techniques (single, double and multiple) of axillary block of the brachial plexus for distal upper extremity surgery. We considered these effects primarily in terms of anaesthetic effectiveness; the complication rate (neurological and vascular); and pain and discomfort caused by performance of the block...
September 2, 2016: Cochrane Database of Systematic Reviews
Oliver Blanck, Svenja Ipsen, Mark K Chan, Ralf Bauer, Matthias Kerl, Peter Hunold, Volkmar Jacobi, Ralf Bruder, Achim Schweikard, Dirk Rades, Thomas J Vogl, Peter Kleine, Frank Bode, Jürgen Dunst
PURPOSE: Robotic guided stereotactic radiosurgery has recently been investigated for the treatment of atrial fibrillation (AF). Before moving into human treatments, multiple implications for treatment planning given a potential target tracking approach have to be considered. MATERIALS & METHODS: Theoretical AF radiosurgery treatment plans for twenty-four patients were generated for baseline comparison. Eighteen patients were investigated under ideal tracking conditions, twelve patients under regional dose rate (RDR = applied dose over a certain time window) optimized conditions (beam delivery sequence sorting according to regional beam targeting), four patients under ultrasound tracking conditions (beam block of the ultrasound probe) and four patients with temporary single fiducial tracking conditions (differential surrogate-to-target respiratory and cardiac motion)...
2016: Curēus
Marwin Gutierrez, Cristina Hernandez-Diaz, Lucio Ventura-Rios, Lina María Saldarriaga-Rivera, Santiago Ruta, Magaly Alva, Claudia Mora -Trujillo, Wilkerson Pérez, Henry Terrazas, Rodolfo Del Carmen Arape Toyo, Maritza Quintero, Carla Solano, Oscar Sedano Santiago, Janet Grisel Huamán Sotomayor, Cesar Cefferino, Guillermo E Py, Marcelo J Audisio, Walter Javier Spindler, Horacio Berman, Carla Airoldi, Rómulo Wong, Ana Laura Álvarez Del Castillo Araujo, Mario E Díaz, Carmen Cerón Villaquiran, Rubén Darío Mantilla, José Alexandre Mendonça, Inês Guimarães da Silveira, Aline Defaveri do Prado, Melissa Cláudia Bisi, Violeta Rosario, Jeannette Medrano-Sánchez, Roberto Muñoz-Louis, Ana Cecilia Lozada-Navarro, Araceli Bernal, Maribel Lozano, Carlos Pineda
This study aimed to perform an overview of how ultrasound (US) is being used, implemented, and applied in rheumatologic centers in Latin America (LA). A retrospective, multicenter 1-year experience study was undertaken. Eighteen centers from eight countries were involved. The following information were collected: demographic data, indication to perform an US examination, physician that required the examination, and the anatomical region required for the examination. A total of 7167 patients underwent an US examination...
August 30, 2016: Clinical Rheumatology
Kalyani Ektate, Ankur Kapoor, Danny Maples, Ahmet Tuysuzoglu, Joshua VanOsdol, Selvarani Ramasami, Ashish Ranjan
Ultrasound imaging is widely used both for cancer diagnosis and to assess therapeutic success, but due to its weak tissue contrast and the short half-life of commercially available contrast agents, it is currently not practical for assessing motion compensated contrast-enhanced tumor imaging, or for determining time-resolved absolute tumor temperature while simultaneously reporting on drug delivery. The objectives of this study were to: 1) develop echogenic heat sensitive liposomes (E-LTSL) and non-thermosensitive liposomes (E-NTSL) to enhance half-life of contrast agents, and 2) measure motion compensated temperature induced state changes in acoustic impedance and Laplace pressure of liposomes to monitor temperature and doxorubicin (Dox) delivery to tumors...
2016: Theranostics
David S Hersh, Anthony J Kim, Jeffrey A Winkles, Howard M Eisenberg, Graeme F Woodworth, Victor Frenkel
: Transcranial focused ultrasound (FUS) can noninvasively transmit acoustic energy with a high degree of accuracy and safety to targets and regions within the brain. Technological advances, including phased-array transducers and real-time temperature monitoring with magnetic resonance thermometry, have created new opportunities for FUS research and clinical translation. Neuro-oncology, in particular, has become a major area of interest because FUS offers a multifaceted approach to the treatment of brain tumors...
August 22, 2016: Neurosurgery
Zeeshan Ahmed, Sanjeev Chhabra, Ashish Massey, Vikesh Vij, Rahul Yadav, Rajendra Bugalia, Jeevan Kankaria, Raj K Jenaw
INTRODUCTION: Hydatid disease is caused by the larval stage of Echinococcus granulosus. It most commonly affects the liver and lung. Pancreatic hydatid cyst (PHC) is very rare with incidence of 0.14%-2%. PRESENTATION OF CASE: A 40year old lady presented with epigastric pain for last 3 months. A 5×5cm abdominal lump occupying the epigastric and left hypochondrial region was noted on physical examination. Ultrasonography (USG) and Contrast enhanced Computed Tomogrpahy (CT) revealed a 55×57mm cystic structure in the pancreatic body...
2016: International Journal of Surgery Case Reports
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