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ultrasound needle 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
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
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
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
Parmida Beigi, Paul Malenfant, Abtin Rasoulian, Robert Rohling, Alison Dube, Vit Gunka
Current 2-D ultrasound technology is unable to perform a midline neuraxial needle insertion under real-time ultrasound guidance using a standard needle and without an assistant. The aim of the work described here was to determine the feasibility of a new technology providing such capability, starting with a study evaluating the selected puncture site. A novel 3-D ultrasound imaging technique was designed using thick-slice rendering in conjunction with a custom needle guide (3DUS + Epiguide). A clinical feasibility study evaluated the ability of 3DUS + Epiguide to identify the epidural needle puncture site for a midline insertion in the lumbar spine...
October 6, 2016: Ultrasound in Medicine & Biology
Z E Zhou, W G Yan, Y Zhou, Z G Ji, H Z Li
Prostate cancer is currently diagnosed by prostate biopsy performed by the transrectal ultrasound-guided technique. However, overdetection of clinical insignificant tumours and missed detection of clinical significant tumours have become problematic. MRI of the prostate, particularly if performed with multiparametric imaging, is capable of detecting clinical significant prostate cancer, which has brought the opportunity to use those images as targets for needle biopsy. Three methods of fusing MRI for targeted biopsy have been recently described: MRI-ultrasound fusion, MRI-MRI fusion ('in-bore' biopsy) and cognitive fusion...
October 1, 2016: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
Fabrice Michel, Arnaud Dupeyron, Jean Jacques Labat, Etienne Aleton, Bernard Parratte
OBJECTIVE: Among pelvitrochanteric muscles, the internal obturator muscle is implicated in some pain projected at the buttock or perineum. Even though the pathophysiology is not completely understood, its responsibility is often held in clinical practice and in the literature due to effectiveness of botulinum toxin injections, constituting a therapeutic test. The objective is to enhance the couple ultrasound/EMG in difficult injections. MATERIAL/PATIENTS AND METHODS: Eighteen patients were treated in the physical medicine department (Besançon) from September 2015 to February 2016 for gluteal or perineal pain suspected to be related to abnormal spasm of the internal obturator muscle...
September 2016: Annals of Physical and Rehabilitation Medicine
Marie Cécile Fevre, Caroline Vincent, Julien Picard, Arnaud Vighetti, Claire Chapuis, Maxime Detavernier, Benoit Allenet, Jean François Payen, Jean Luc Bosson, Pierre Albaladejo
Ultrasound (US) guided needle positioning is safer than anatomical landmark techniques for central venous access. Hand-eye coordination and execution time depend on the professional's ability, previous training and personal skills. Needle Guidance Positioning Systems (GPS) may theoretically reduce execution time and facilitate needle positioning in specific targets, thus improving patient comfort and safety. Three groups of healthcare professionals (41 anaesthesiologists and intensivists, 41 residents in anaesthesiology and intensive care, 39 nurse anaesthetists) were included and required to perform 3 tasks (positioning the tip of a needle in three different targets in a silicon phantom) by using successively a conventional US-guided needle positioning and a needle GPS...
September 19, 2016: Anaesthesia, Critical Care & Pain Medicine
Christopher J DiMaio, Jennifer M Kolb, Petros C Benias, Hiral Shah, Shashin Shah, Oleh Haluszka, Jennifer Maranki, Kaveh Sharzehi, Eric Lam, Stuart R Gordon, Sarah M Hyder, Pavlos Z Kaimakliotis, Satya B Allaparthi, Frank G Gress, Amrita Sethi, Ashish R Shah, Jose Nieto, Vivek Kaul, Shivangi Kothari, Truptesh H Kothari, Sammy Ho, Manhal J Izzy, Neil R Sharma, Rabindra R Watson, V Raman Muthusamy, Douglas K Pleskow, Tyler M Berzin, Mandeep Sawhney, Emad Aljahdi, Marvin Ryou, Clarence K Wong, Parantap Gupta, Dennis Yang, Susana Gonzalez, Douglas G Adler
BACKGROUND AND AIMS: The ability to safely and effectively obtain sufficient tissue for pathologic evaluation by using endoscopic ultrasound (EUS) guidance remains a challenge. Novel designs in EUS needles may provide for improved ability to obtain such core biopsies. The aim of this study was to evaluate the diagnostic yield of core biopsy specimens obtained using a novel EUS needle specifically designed to obtain core biopsies. PATIENTS AND METHODS: Multicenter retrospective review of all EUS-guided fine-needle biopsies obtained using a novel biopsy needle (SharkCore FNB needle, Medtronic, Dublin, Ireland)...
September 2016: Endoscopy International Open
Yohei Shida, Tomoaki Hakariya, Kosuke Takehara, Toru Onita, Yasuyoshi Miyata, Hideki Sakai
AIM: To evaluate whether a combination method involving the transrectal (TR) and transperineal (TP) approach can increase the cancer detection rate relative to the TR approach regarding repeat prostate biopsy. PATIENTS AND METHODS: One thousand and nineteen patients underwent initial prostate biopsies and 298 repeat prostate biopsies. All initial biopsies were conducted transrectally. Of the repeat biopsies, 179 (60.1%) were performed using the combined transrectal and transperineal (TR+TP) approach; 113 (37...
September 2016: Anticancer Research
Pembegul Gunes, Sule Canberk, Mine Onenerk, Murat Erkan, Nilufer Gursan, Emine Kilinc, Gamze Zeynep Kilicoglu
OBJECTIVE: To determine the malignancy rate in the non-diagnostic (ND) category of the Bethesda System for Reporting Thyroid Cytopathology (BSRTC) based on a different approach in relation to histopathology diagnoses. STUDY DESIGN: All ND fine needle aspirations (FNAs) that were performed under ultrasound guidance by an interventional radiologist with rapid on-site evaluation were included in the study. Slides were reevaluated to identify the cause of inadequacy as "qualitative" or "quantitative...
2016: PloS One
Raja Shekar Danda, Jagannath Kamath, Nikil Jayasheelan, Prashanth Kumar
Ultrasound guidance for steroid injection in de Quervain disease is useful in identifying the presence of subcompartments and effectively injecting the drug into tendon sheath. We prospectively studied 50 patients with features of de Quervain disease to determine the effectiveness of ultrasound in positioning of needle for steroid injection and effectiveness of single versus multiple injections in the presence of subcompartments. Scalp vein set was inserted into the tendon sheath under ultrasound guidance and sterile conditions...
April 2016: Journal of Hand and Microsurgery
Nicholas Fulton, Ji Buethe, Jayakrishna Gollamudi, Mark Robbin
OBJECTIVE: The purpose of this study was to determine whether simulation-based training can improve resident performance in ultrasound-guided biopsy. SUBJECTS AND METHODS: Forty radiology residents from a single academic institution enrolled in the study. Each resident performed an initial biopsy on an abdominal imaging phantom using direct ultrasound guidance. Twenty of the residents underwent a 30-minute training session with the phantom device, and 20 residents received no additional training...
September 9, 2016: AJR. American Journal of Roentgenology
Anna Puigdellívol-Sánchez, Miguel A Reina, Xavier Sala-Blanch, Jaume Pomés-Talló, Alberto Prats-Galino
The classical recommendation for paramedian approaches is needle insertion 1-2 cm paramedian and an angle of 10°-15° medial-cephalad to the plane of the back, but contact with vertebrae is frequent. A mathematical approach to individualizing punctures is proposed on the basis of skin-dural sac distance (d): Optimal angle ∼ inverse cosine [d/ (1+d2) ] and the distance covered by the needle ∼ 1+d2 for 1 cm paramedian punctures. The inferred angles were compared to optimal angles leading to the central dorsal part of the dural sac from 1 to 2 cm paramedian, measured by Magnetic Resonance Imaging (MRI) in seven cases and in a short stature volunteer (1...
September 6, 2016: Clinical Anatomy
Kazuyuki Matsumoto, Hironari Kato, Koichiro Tsutsumi, Soichiro Fushimi, Masaya Iwamuro, Shinsuke Oda, Sho Mizukawa, Yutaka Akimoto, Daisuke Uchida, Takeshi Tomoda, Naoki Yamamoto, Shigeru Horiguchi, Hiroyuki Okada
BACKGROUND: Ethanol, a commonly available agent, has been used to successfully ablate cystic and solid lesions in the pancreas. The aim of this study is to investigate the effects of an ethanol injection into the porcine pancreas and observe the time-dependent image changes in the pancreatic parenchyma. METHODS: Pure ethanol was injected into the pancreatic tail using a 25-gauge EUS needle with direct ultrasound guidance under celiotomy: 1 mL and 2 mL were injected, respectively...
2016: Ecancermedicalscience
Alexander Seitel, Samira Sojoudi, Jill Osborn, Abtin Rasoulian, Saman Nouranian, Victoria A Lessoway, Robert N Rohling, Purang Abolmaesumi
Spinal needle injections are guided by fluoroscopy or palpation, resulting in radiation exposure and/or multiple needle re-insertions. Consequently, guiding these procedures with live ultrasound has become more popular, but images are still challenging to interpret. We introduce a guidance system based on augmentation of ultrasound images with a patient-specific 3-D surface model of the lumbar spine. We assessed the feasibility of the system in a study on 12 patients. The system could accurately provide augmentations of the epidural space and the facet joint for all subjects...
September 1, 2016: Ultrasound in Medicine & Biology
Alessandro Di Filippo, Silvia Falsini, Chiara Adembri
The ultrasound guidance in regional anesthesia ensures the visualization of needle placement and the spread of Local Anesthetics. Over the past few years there was a substantial interest in determining the Minimum Effective Anesthetic Volume necessary to accomplish surgical anesthesia. The precise and real-time visualization of Local Anesthetics spread under ultrasound guidance block may represent the best requisite for reducing Local Anesthetics dose and Local Anesthetics-related effects. We will report a series of studies that have demonstrated the efficacy of ultrasound guidance blocks to reduce Local Anesthetics and obtain surgical anesthesia as compared to block performed under blind or electrical nerve stimulation technique...
September 2016: Brazilian Journal of Anesthesiology
Abbas Basiri, Amir H Kashi, Mehdi Zeinali, Mahmoodreza Nasiri, Reza Sarhangnejad, Reza Valipour
OBJECTIVES: To evaluate the success of ultrasonography directed renal access in entering the target calyx from proper entry site and in the direction of renal pelvis during percutaneous nephrolithotomy (PCNL). MATERIALS AND METHODS: PCNL cases who were operated on by one fellow from May-June 2014 were included in this study. A vertically placed ultrasound probe on the patient flank in prone position was used to identify the preselected target calyx. Needle was advanced through needle holder and fluoroscopy was used to document the entered calyx, site and angle of entry...
September 1, 2016: International Braz J Urol: Official Journal of the Brazilian Society of Urology
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