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Ultrasound guidance

Jennie Engstrand, Grzegorz Toporek, Piotr Harbut, Eduard Jonas, Henrik Nilsson, Jacob Freedman
OBJECTIVE: The purpose of the present study is to evaluate the accuracy and safety of antenna placement performed with the use of a CT-guided stereotactic navigation system for percutaneous ablation of liver tumors and to assess the safety of high-frequency jet ventilation for target motion control. MATERIALS AND METHODS: Twenty consecutive patients with malignant liver lesions for which surgical resection was contraindicated or that were not readily visible on ultrasound or not accessible by ultrasound guidance were included in the study...
October 20, 2016: AJR. American Journal of Roentgenology
Xiao-Min Song, Hong Jiang, Wen-Xiang Zhang, Yun Zhou, Feng Ni, Xue-Mei Wang
AIM: The aim of this study was to compare the clinical outcomes of in vitro fertilization (IVF) for patients with hydrosalpinx between ultrasound sclerotherapy and surgical intervention. METHODS: The data of 482 IVF/intracytoplasmic sperm injection (ICSI) cycles were divided into three groups according to different intervention protocols before IVF/ICSI. Group A included 265 cycles in which ultrasound sclerotherapy pretreatment was carried out before controlled ovarian hyperstimulation...
October 20, 2016: Journal of Obstetrics and Gynaecology Research
M J Blans, H Endeman, F H Bosch
BACKGROUND: After insertion of a central venous catheter (CVC) a conventional chest X-ray (CXR) is usually taken to check for complications and correct position. Ultrasound might be equally effective as CXR and is less time consuming. We studied the use of ultrasound versus CXR after insertion of a CVC in general ward patients. METHODS: General ward patients in need of a CVC were included. CVCs were inserted under direct ultrasound guidance. After insertion, ultrasound was performed and compared with CXR to check for complications and position...
October 2016: Netherlands Journal of Medicine
Dae Young Hyun, Myung Ho Jeong, Doo Sun Sim, Yun Ah Jeong, Kyung Hoon Cho, Min Chul Kim, Hyun Kuk Kim, Hae Chang Jeong, Keun Ho Park, Young Joon Hong, Jun Han Kim, Youngkeun Ahn, Jung Chaee Kang
Background/Aims: This study appraised the long term clinical outcomes of patients treated with percutaneous coronary intervention (PCI) for unprotected left main coronary artery (ULMCA) disease. There are limited data regarding long-term clinical outcomes after PCI for ULMCA disease. Methods: From 2001 to 2011, a total of 448 patients who underwent PCI for ULMCA disease and had 2-year clinical follow-up, were analyzed. The study patients were divided into two groups: group I (stable angina pectoris [SAP], n = 60, 48 men, 62 ± 10 years) and group II (acute coronary syndrome [ACS], n = 388, 291 men, 64 ± 10 years)...
October 18, 2016: Korean Journal of Internal Medicine
J Cohen, C Andre, P Mozer
Prostate cancer is the first cancer and the second cause of cancer death in men in France. It is now a major public health issue, particularly given the increase of life expectancy. If screening is based on blood PSA and clinical examination (DRE), diagnosis requires the histological analysis of prostate samples. In current clinical routine, these biopsies are performed by endorectal through ultrasound guidance. In most cases, the cancer is not visible in the ultrasound image and the latter is used to make a dozen samples (or core), distributed as best as possible in the prostate...
October 14, 2016: Progrès en Urologie
Masahiro Takita, Mina Iwanishi, Tomohiro Minami, Masashi Kono, Hirokazo Chishina, Tadaaki Arizumi, Norihisa Yada, Satoru Hagiwara, Yasunori Minami, Hiroshi Ida, Kazuomi Ueshima, Nishida Naoshi, Masatoshi Kudo
OBJECTIVE: The objective of treatment for polycystic liver disease is to reduce the liver volume and reduce or resolve compression symptoms such as abdominal fullness and abdominal pain due to hepatomegaly. Liver cysts are treated internally by puncture and aspiration of the cyst contents or hepatic artery embolization and surgically by cyst fenestration or hepatectomy, but no clear consensus has been reached concerning their selection. We introduced monoethanolamine oleate (EO) sclerotherapy therapy for liver cysts in 1999 and reported its effectiveness...
2016: Digestive Diseases
Floriana Zennaro, Elena Neri, Federico Nappi, Daniele Grosso, Riccardo Triunfo, Francesco Cabras, Francesca Frexia, Stefania Norbedo, Pierpaolo Guastalla, Massino Gregori, Elisabetta Cattaruzzi, Daniela Sanabor, Egidio Barbi, Marzia Lazzerini
BACKGROUND: The use of point-of-care ultrasonography (POC US) in paediatrics is increasing. This study investigated the diagnostic accuracy of POC US in children accessing the emergency department (ED) when performed by paediatricians under the remote guidance of radiologists (TELE POC). METHODS: Children aged 0 to 18 years accessing the ED of a third level research hospital with eight possible clinical scenarios and without emergency/severity signs at the triage underwent three subsequent US tests: by a paediatrician guided remotely by a radiologist (TELE POC); by the same radiologist (UNBLIND RAD); by an independent blinded radiologist (BLIND RAD)...
2016: PloS One
Matthew P Lungren, Will S Lindquester, F Glen Seidel, Nishita Kothry, Eric J Monroe, Giri Shivaram, Anne E Gill, Matthew C Hawkins
PURPOSE: To describe and assess the technical success and safety of ultrasound guided liver biopsy with gelatin sponge pledget tract embolization technique in infants less than 10 kg across three tertiary pediatric hospitals. MATERIALS AND METHODS: There were 67 pediatric patients weighing less than 10 kg (36 males; 31 females; average age 202 days; average weight 6 kg, range 1.5 kg to 9.9 kg) referred for liver biopsy performed with ultrasound guidance and gelatin sponge pledget tract embolization during a two year period...
September 30, 2016: Journal of Pediatric Gastroenterology and Nutrition
Brian M Ilfeld
A continuous peripheral nerve block (CPNB) consists of a percutaneously inserted catheter with its tip adjacent to a target nerve/plexus through which local anesthetic may be administered, providing a prolonged block that may be titrated to the desired effect. In the decades after its first report in 1946, a plethora of data relating to CPNB was published, much of which was examined in a 2011 Anesthesia & Analgesia article. The current update is an evidence-based review of the CPNB literature published in the interim...
October 3, 2016: Anesthesia and Analgesia
Trevor J G Robinson, Shannon L Roberts, Robert S Burnham, Eldon Loh, Anne M Agur
Image-guided sensory block and radiofrequency ablation of the nerves innervating the sacro-iliac joint require readily identifiable bony landmarks for accurate needle/electrode placement. Understanding the relative locations of the transverse sacral tubercles along the lateral sacral crest is important for ultrasound guidance, as they demarcate the position of the posterior sacral network (S1-S3 ± L5/S4) innervating the posterior sacro-iliac joint. No studies were found that investigated the spatial relationships of these bony landmarks...
2016: BioMed Research International
Christoph F Dietrich, Rudolf Horn, Susanne Morf, Liliana Chiorean, Yi Dong, Xin-Wu Cui, Nathan S S Atkinson, Christian Jenssen
Central venous access has traditionally been performed on the basis of designated anatomical landmarks. However, due to patients' individual anatomy and vessel pathology and depending on individual operators' skill, this landmark approach is associated with a significant failure rate and complication risk. There is substantial evidence demonstrating significant improvement in effectiveness and safety of vascular access by realtime ultrasound (US)-guidance, as compared to the anatomical landmark-guided approach...
September 2016: Journal of Thoracic Disease
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
Aurélie Najm, Carl Orr, Marie-Françoise Heymann, Géraldine Bart, Douglas J Veale, Benoît Le Goff
OBJECTIVE: The utility of synovial biopsy in increasing our understanding of the pathogenesis of inflammatory arthropathies, as well as in evaluating treatments, is well established. Ultrasound (US) allows synovial assessment and therefore assists in biopsying synovial tissue in a safe and well-tolerated manner. This study's objectives were to (1) determine the rate of success in retrieving synovial tissue using US guidance, (2) describe the indications for US-guided synovial biopsies in the clinical setting, (3) determine how frequently the synovial biopsy can lead to a clear diagnosis, and (4) assess the quality of the synovial tissue obtained using this technique...
October 15, 2016: Journal of Rheumatology
Dong-Ho Shin, Sung-Jin Hong, Gary S Mintz, Jung-Sun Kim, Byeong-Keuk Kim, Young-Guk Ko, Donghoon Choi, Yangsoo Jang, Myeong-Ki Hong
OBJECTIVES: The aim of this study was to evaluate the clinical usefulness of intravascular ultrasound (IVUS)-guided new-generation drug-eluting stent (DES) implantation using a meta-analysis of individual patient-level data from randomized trials. BACKGROUND: Published randomized trials that compare IVUS-guided versus angiography-guided new-generation DES implantation are scarce. METHODS: Searches of the MEDLINE, Embase, and Cochrane databases were performed to find randomized trials that compared IVUS-guided versus angiography-guided new-generation DES implantation...
October 6, 2016: JACC. Cardiovascular Interventions
Douglas Wildes, Warren Lee, Bruno Haider, Scott Cogan, Krishnakumar Sundaresan, David Mills, Christopher Yetter, Patrick Hart, Christopher Haun, Mikael Concepcion, Johan Kirkhorn, Marc Bitoun
We developed a 2.5 x 6.6 mm 2D array transducer with integrated transmit/receive ASIC for 4D ICE (real-time 3D IntraCardiac Echocardiography) applications. The ASIC and transducer design were optimized so that the high voltage transmit, low-voltage TGC (time-gain control) and preamp, subaperture beamformer, and digital control circuits for each transducer element all fit within the 0.019 mm2 area of the element. The transducer assembly was deployed in a 10 Fr (3.3 mm diameter) catheter, integrated with a GE Vivid1 E9 ultrasound imaging system, and evaluated in three pre-clinical studies...
October 12, 2016: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Lori A Stolz, Uwe Stolz, J Matthew Fields, Turandot Saul, Michael Secko, Matthew J Flannigan, Johnathan M Sheele, Robert P Rifenburg, Anthony J Weekes, Elaine B Josephson, John Bedolla, Dana M Resop, Jonathan Dela Cruz, Megan Boysen-Osborn, Terrell Caffery, Charlotte Derr, Rimon Bengiamin, Gerardo Chiricolo, Brandon Backlund, Jagdipak Heer, Robert J Hyde, Srikar Adhikari
OBJECTIVES: Emergency ultrasound (EUS) has been recognized as integral to the training and practice of emergency medicine (EM). The Council of Emergency Medicine Residency-Academy of Emergency Ultrasound (CORD-AEUS) consensus document provides guidelines for resident assessment and progression. The Accredited Council for Graduate Medical Education (ACGME) has adopted the EM Milestones for assessment of residents' progress during their residency training which includes demonstration of procedural competency in bedside ultrasound...
October 14, 2016: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
Genaro A Paredes-Juarez, Brad P Barnett, Jeff W M Bulte
This chapter presents a description of standardized techniques used routinely in our laboratory to encapsulate different cell types using the alginate-PLL-alginate immunoisolation system. Given the importance of noninvasive tracking of encapsulated cell transplants, we present a detailed guidance to achieve maximum efficiency and functionality of the capsule preparations for optimal tracking posttransplantation. The provided protocols cover tracking of encapsulated cells using magnetic resonance (MR), X-ray, computed tomography (CT), and ultrasound (US) imaging...
2017: Methods in Molecular Biology
L Bond, B Schulz, T VanMeter, R C G Martin
INTRODUCTION: Irreversible electroporation (IRE) uses multiple needles and a series of electrical pulses to create pores in cell membranes and cause cell apoptosis. One of the demands of IRE is the precise needle spacing required. Two-dimensional intraoperative ultrasound (2-D iUS) is currently used to measure inter-needle distances but requires significant expertise. This study evaluates the potential of three-dimensional (3-D) image guidance for placing IRE needles and calculating needle spacing...
September 29, 2016: European Journal of Surgical Oncology
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
Shinsuke Mori, Keisuke Hirano, Yoshiaki Ito, Masahiro Yamawaki, Motoharu Araki, Norihiro Kobayashi, Hideyuki Takimura, Yasunari Sakamoto, Masakazu Tsutsumi, Takuro Takama, Yohsuke Honda, Takahiro Tokuda, Kenji Makino, Shigemitsu Shirai
AIM: To investigate the relationship between intravascular ultrasound (IVUS) findings and restenosis after stent implantation for long occlusive femoropopliteal (FP) lesions using the intraluminal approach. METHODS: This was a single-center retrospective study of 45 patients (49 lesions) with de novo long occlusive FP lesions treated with bare metal stents implanted using the intraluminal approach under IVUS guidance from April 2007 to December 2014. All patients were followed up at least 12 months...
October 1, 2016: Journal of Atherosclerosis and Thrombosis
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