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https://www.readbyqxmd.com/read/29464748/prospective-randomized-study-evaluating-ultrasound-versus-fluoroscopy-guided-sacral-interstim%C3%A2-lead-placement-a-pilot-study
#1
Jaschar Shakuri-Rad, Arman Cicic, Jannah Thompson
OBJECTIVE: To investigate the use of intraoperative ultrasound during stage I InterStim® sacral lead placement. METHODS: A total of 40 patients were randomly assigned to undergo InterStim® lead placement utilizing fluoroscopy or ultrasound guidance. Patients were blinded for the duration of the study. The surgeon and staff were blinded until after induction of anesthesia. Patients met criteria for refractory overactive bladder, fecal incontinence, or both. The ICIQ-OABqol, OABSS, and FIQL validated questionnaires were used pre- and post-operatively...
February 21, 2018: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/29455556/conventional-versus-computer-assisted-stereoscopic-ultrasound-needle-guidance-for-renal-access-a-randomized-crossover-bench-top-trial
#2
Alexander Blair Thomas, Jonathan M Ewald, Isaac Kelly, Matthew Pierce, Jerry Thomas, Braden Mattison, Benjamin West, David Ruckle, Mohamed Keheila, Samuel R Abourbih, Reed Krause, Vi Am Dinh, D Daniel Baldwin, D Duane Baldwin
PURPOSE: Ultrasound guidance during renal access and mass biopsy reduces radiation exposure, but can be technically challenging. A needle guidance system might simplify these procedures. The purpose of this randomized crossover trial was to compare conventional and computer-assisted ultrasound needle guidance systems for renal access and mass biopsy. MATERIALS AND METHODS: Seventy-one subjects were randomized to perform renal access or mass biopsy on a phantom using conventional and computer-assisted ultrasound guidance in a crossover study design...
February 17, 2018: Journal of Endourology
https://www.readbyqxmd.com/read/29443386/technical-note-error-metrics-for-estimating-the-accuracy-of-needle-instrument-placement-during-transperineal-mr-us-guided-prostate-interventions
#3
Ester Bonmati, Yipeng Hu, Barbara Villarini, Rachael Rodell, Paul Martin, Lianghao Han, Ian Donaldson, Hashim U Ahmed, Caroline M Moore, Mark Emberton, Dean C Barratt
PURPOSE: Image-guided systems that fuse magnetic resonance imaging (MRI) with three-dimensional (3D) ultrasound (US) images for performing targeted prostate needle biopsy and minimally-invasive treatments for prostate cancer are of increasing clinical interest. To date, a wide range of different accuracy estimation procedures and error metrics have been reported, which makes comparing the performance of different systems difficult. METHODS: A set of 9 measures are presented to assess the accuracy of MRI-US image registration, needle positioning, needle guidance, and overall system error, with the aim of providing a methodology for estimating the accuracy of instrument placement using a MR/US-guided transperineal approach...
February 14, 2018: Medical Physics
https://www.readbyqxmd.com/read/29416151/pre-procedure-ultrasound-guided-paramedian-spinal-anaesthesia-at-l5-s1-is-this-better-than-landmark-guided-midline-approach-a-randomised-controlled-trial
#4
Karthikeyan Kallidaikurichi Srinivasan, Anne-Marie Leo, Gabriella Iohom, Frank Loughnane, Peter J Lee
Background and Aims: Routine use of pre-procedural ultrasound guided midline approach has not shown to improve success rate in administering subarachnoid block. The study hypothesis was that the routine use of pre-procedural (not real time) ultrasound-guided paramedian spinals at L5-S1 interspace could reduce the number of passes (i.e., withdrawal and redirection of spinal needle without exiting the skin) required to enter the subarachnoid space when compared to the conventional landmark-guided midline approach...
January 2018: Indian Journal of Anaesthesia
https://www.readbyqxmd.com/read/29406410/techniques-for-interventional-mri-guidance-in-closed-bore-systems
#5
Harald Busse, Thomas Kahn, Michael Moche
Efficient image guidance is the basis for minimally invasive interventions. In comparison with X-ray, computed tomography (CT), or ultrasound imaging, magnetic resonance imaging (MRI) provides the best soft tissue contrast without ionizing radiation and is therefore predestined for procedural control. But MRI is also characterized by spatial constraints, electromagnetic interactions, long imaging times, and resulting workflow issues. Although many technical requirements have been met over the years-most notably magnetic resonance (MR) compatibility of tools, interventional pulse sequences, and powerful processing hardware and software-there is still a large variety of stand-alone devices and systems for specific procedures only...
February 2018: Topics in Magnetic Resonance Imaging: TMRI
https://www.readbyqxmd.com/read/29397406/ultrasound-guided-lumbar-puncture-in-pediatric-patients-technical-success-and-safety
#6
David B Pierce, Giri Shivaram, Kevin S H Koo, Dennis W W Shaw, Kirby F Meyer, Eric J Monroe
BACKGROUND: Disadvantages of fluoroscopically guided lumbar puncture include delivery of ionizing radiation and limited resolution of incompletely ossified posterior elements. Ultrasound (US) allows visualization of critical soft tissues and the cerebrospinal fluid (CSF) space without ionizing radiation. OBJECTIVE: To determine the technical success and safety of US-guided lumbar puncture in pediatric patients. MATERIALS AND METHODS: A retrospective review identified all patients referred to interventional radiology for lumbar puncture between June 2010 and June 2017...
February 3, 2018: Pediatric Radiology
https://www.readbyqxmd.com/read/29392409/concordance-of-gleason-grading-with-three-dimensional-ultrasound-systematic-biopsy-and-biopsy-core-pre-embedding
#7
Anouk A M A van der Aa, Christophe K Mannaerts, Hans van der Linden, Maudy Gayet, Bart Ph Schrier, Massimo Mischi, Harrie P Beerlage, Hessel Wijkstra
PURPOSE: To determine the value of a three-dimensional (3D) greyscale transrectal ultrasound (TRUS)-guided prostate biopsy system and biopsy core pre-embedding method on concordance between Gleason scores of needle biopsies and radical prostatectomy (RP) specimens. METHODS: Retrospective analysis of prostate biopsies and subsequent RP for PCa in the Jeroen Bosch Hospital, the Netherlands, from 2007 to 2016. Two cohorts were analysed: conventional 2D TRUS-guided biopsies and RP (2007-2013, n = 266) versus 3D TRUS-guided biopsies with pre-embedding (2013-2016, n = 129)...
February 1, 2018: World Journal of Urology
https://www.readbyqxmd.com/read/29377972/recommendations-on-the-use-of-ultrasound-guidance-for-adult-thoracentesis-a-position-statement-of-the-society-of-hospital-medicine
#8
Ria Dancel, Daniel Schnobrich, Nitin Puri, Ricardo Franco-Sadud, Joel Cho, Loretta Grikis, Brian P Lucas, Mahmoud El-Barbary, Nilam J Soni
Executive Summary: 1) We recommend that ultrasound should be used to guide thoracentesis to reduce the risk of complications, the most common being pneumothorax. 2) We recommend that ultrasound guidance should be used to increase the success rate of thoracentesis. 3) We recommend that ultrasound-guided thoracentesis should be performed or closely supervised by experienced operators. 4) We suggest that ultrasound guidance be used to reduce the risk of complications from thoracentesis in mechanically ventilated patients...
February 2018: Journal of Hospital Medicine: An Official Publication of the Society of Hospital Medicine
https://www.readbyqxmd.com/read/29363762/a-comparison-of-prostate-tumor-targeting-strategies-using-magnetic-resonance-imaging-targeted-transrectal-ultrasound-guided-fusion-biopsy
#9
Peter R Martin, Derek W Cool, Aaron Fenster, Aaron D Ward
PURPOSE: Magnetic resonance imaging (MRI)-targeted, 3D transrectal ultrasound (TRUS)-guided prostate biopsy aims to reduce the 21-47% false negative rate of clinical 2D TRUS-guided systematic biopsy, but continues to yield false negative results. This may be improved via needle target optimization, accounting for guidance system errors and image registration errors. As an initial step toward the goal of optimized prostate biopsy targeting, we investigated how needle delivery error impacts tumor sampling probability for two targeting strategies...
January 24, 2018: Medical Physics
https://www.readbyqxmd.com/read/29353388/outcomes-and-cost-effectiveness-of-ultrasound-guided-injection-of-the-trochanteric-bursa
#10
William G Mitchell, Sharon C Kettwich, Wilmer L Sibbitt, Randy R Sibbitt, Maheswari Muruganandam, Noelle A Rolle, William A Hayward, Roderick A Fields, Luis P Roldan, N Suzanne Emil, Monthida Fangtham, Arthur D Bankhurst
We hypothesized that ultrasound (US) guidance improves outcomes of corticosteroid injection of trochanteric bursitis. 40 patients with greater trochanteric pain syndrome defined by pain to palpation over the trochanteric bursa were randomized to injection with 5 ml of 1% lidocaine and 80 mg of methylprednisolone using (1) conventional anatomic landmark palpation guidance or (2) US guidance. Procedural pain (Visual Analogue Pain Scale), pain at outcome (2 weeks and 6 months), therapeutic duration, time-to-next intervention, and costs were determined...
January 20, 2018: Rheumatology International
https://www.readbyqxmd.com/read/29344564/endoscopic-ultrasound-guided-needle-based-confocal-laser-endomicroscopy-in-solid-pancreatic-masses-a-prospective-validation-study
#11
John Gásdal Karstensen, Tatiana Cârţână, Codruţa Constantinescu, Silviu Dumitrașcu, Bojan Kovacevic, Pia Klausen, Hazem Hassan, Tobias Wirenfeldt Klausen, Helga Bertani, Manoop S Bhutani, Adrian Săftoiu, Peter Vilmann
Background and study aims:  Endoscopic ultrasound fine-needle aspiration (EUS-FNA) is a keystone in diagnosing and staging of pancreatic masses. Recently, a microfiber that can pass through a 19-gauge needle has been introduced for confocal laser endomicroscopy (nCLE). The aims of this study were to evaluate the diagnostic value and the reproducibility of nCLE criteria for solid malignant lesions. Patients and methods:  This prospective dual-center study included patients with pancreatic masses suspicious of malignancy referred for EUS-FNA...
January 2018: Endoscopy International Open
https://www.readbyqxmd.com/read/29333462/assessment-of-ultrasound-radio-guided-occult-lesion-localization-in-non-palpable-breast-lesions
#12
Seyed Ali Alamdaran, Donia Farokh, Ayda Sharifi Haddad, Navid Daghighi, Elaheh Modoodi, Ramin Sadeghi, Mohammad Naser Forghani, Asieh Sadat Fattahi
Objectives: Controversy exists about the localization of non-palpable breast lesions. In many countries, the gold standard for the diagnosis of these lesions is needle localization due to its accuracy. This study sought to compare the ultrasound- and radio-guided occult lesion localization (ROLL) as a simple method with the conventional procedures in terms of their diagnostic power. Methods: This study was conducted on 94 patients with non-palpable breast lesions detected by ultrasonography and localized by the combination of ultrasonography and using radiopharmaceuticals...
2018: Asia Oceania Journal of Nuclear Medicine & Biology
https://www.readbyqxmd.com/read/29319916/1-0t-mr-guided-percutaneous-coaxial-cutting-needle-biopsy-in-pancreatic-lesion-diagnosis
#13
Chao Liu, Ligang Wang, Xiangmeng He, Yujun Xu, Dong Lu, Peipei Li, Rongbin Lv, Yong Feng, Ming Liu, Chengli Li
BACKGROUND: Pancreatic carcinoma is a common cause of cancer deaths worldwide. Biopsy is often required for the initial diagnosis of pancreatic masses. Biopsy can be performed endoscopically or percutaneously with computed tomography (CT) and ultrasound (US) guidance. MRI offers many inherent advantages over CT and US. PURPOSE/HYPOTHESIS: To prospectively evaluate the feasibility, accuracy, and safety of MRI-guided percutaneous coaxial cutting needle biopsy of pancreatic lesions using an open 1...
January 10, 2018: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29317042/optimizing-success-and-avoiding-mishaps-in-the-most-difficult-image-guided-breast-biopsies
#14
Sughra Raza, Sona A Chikarmane, Eva C Gombos, Dianne Georgian-Smith, Elisabeth P Frost
Breast cancer is an increasing challenge in developed and limited resource areas of the world. Early detection of breast cancer offers the best chance for optimal care and best outcomes. A critical step in early detection is to obtain efficient and accurate tissue diagnoses. Although image-guided core needle breast biopsies are usually straightforward for experienced breast imagers, there are some not uncommon scenarios that present particular challenges. In this review article we will discuss these difficult situations and offer our tried and true methods to ensure safe and successful biopsies, while using stereotactic, ultrasound, and MRI guidance...
February 2018: Seminars in Ultrasound, CT, and MR
https://www.readbyqxmd.com/read/29301131/safety-of-outpatient-kidney-biopsies
#15
Bojana Šimunov, Mihaela Gunjača, Branislav Čingel, Dinko Škegro, Mladen Knotek
BACKGROUND: Kidney biopsy is frequently performed in our centre as an outpatient procedure. The aim of this study was to evaluate the safety of biopsy in the outpatient setting. METHODS: We analysed kidney biopsies performed from March 2013 to February 2017. Seven hundred twenty-five biopsies performed in the outpatient setting were identified: There were 592 transplant and 133 native biopsies including 3 solitary kidney biopsies. All were performed under ultrasound guidance using a 16G or 18G needle, with freehand technique...
January 4, 2018: Nephron
https://www.readbyqxmd.com/read/29287166/intraoperative-optical-coherence-tomography-of-the-human-thyroid-feasibility-for-surgical-assessment
#16
Sarah J Erickson-Bhatt, Kelly J Mesa, Marina Marjanovic, Eric J Chaney, Adeel Ahmad, Pin-Chieh Huang, Z George Liu, Kelly Cunningham, Stephen A Boppart
Thyroid nodules assessed with ultrasound and fine-needle aspiration biopsy are diagnosed as "suspicious" or "indeterminate" in 15%-20% of the cases. Typically, total thyroidectomy is performed in such cases; however, only 25%-50% are found to be cancerous upon final histopathologic analysis. Here we demonstrate optical coherence tomography (OCT) imaging of the human thyroid as a potential intraoperative imaging tool for providing tissue assessment in real time during surgical procedures. Fresh excised tissue specimens from 28 patients undergoing thyroid surgery were imaged in the laboratory using a benchtop OCT system...
December 8, 2017: Translational Research: the Journal of Laboratory and Clinical Medicine
https://www.readbyqxmd.com/read/29274452/visualization-of-needle-tip-localization-by-ultrasound-guidance-with-contrast-bubble-in-lumbar-selective-nerve-root-block-clinical-pilot-study
#17
Sorayouth Chumnanvej, Kitipat Kittayapirom, Siriluk Chumnanvej
BACKGROUND: Epidural steroid injection for low back and leg pain has been shown to result in a positive clinical outcome. Lumbosacral selective nerve root block (SNRB) via a transforaminal approach is commonly performed under fluoroscopic guidance. However, ultrasound guidance is an alternative to overcome the radiologic disadvantages. This study examined the accuracy of needle-tip localization under ultrasound guidance with a contrast bubble, compared with fluoroscopic guidance. OBJECTIVE: The primary objectives were to envisage the needle-tip localization with an air bubble by ultrasound and also to determine the accuracy of needle-tip location in transforaminal lumbar SNRB for low back and leg pain patients who were not surgical candidates...
December 21, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29243129/contrast-enhanced-ultrasound-for-needle-biopsy-of-central-lung-cancer-with-atelectasis
#18
Zhikai Lei, Jun Lou, Lingyun Bao, Zhuying Lv
PURPOSE: Contrast-enhanced ultrasound (CEUS) can distinguish between central lung cancer and atelectatic lung tissue. The aim of this study was to explore the clinical value of CEUS for biopsy in patients with central lung cancer with obstructive atelectasis. METHODS: One hundred and twelve patients were selected and CEUS was performed to display central lung cancer and atelectatic lung tissue. The front edge of central lung cancer was punctured with a needle, avoiding the necrotic area, under the guidance of CEUS...
December 14, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/29232723/biopsy-of-liver-target-lesions-under-contrast-enhanced-ultrasound-guidance-a-multi-center-study
#19
Giampiero Francica, Maria Franca Meloni, Ilario de Sio, Fulvia Terracciano, Eugenio Caturelli, Laura Riccardi, Paola Roselli, Maddalena Diana Iadevaia, Mariano Scaglione, Giovanni Lenna, Jason Chiang, Maurizio Pompili
Purpose To retrospectively characterize the prevalence and impact of contrast-enhanced ultrasound (CEUS) as a guidance technique for the biopsy of liver target lesions (LTLs) at six interventional ultrasound centers. Materials and Methods The six participating centers retrospectively selected all patients in whom biopsy needles were positioned in LTLs during CEUS. The prevalence of CEUS-guided biopsies at each center between 2005 and 2016, contrast agent consumption, procedure indications, diagnostic yield and complications were assessed...
December 12, 2017: Ultraschall in der Medizin
https://www.readbyqxmd.com/read/29224890/advances-in-breast-intervention-where-are-we-now-and-where-should-we-be
#20
REVIEW
W B G Sanderink, R M Mann
In the past four decades, a variety of methods for minimal or non-invasive diagnosis and treatment of breast cancer have been introduced. Although breast imaging has become more and more specific for diagnosis, specimen biopsy with histopathological confirmation is still necessary. Core-needle biopsy under ultrasound guidance is the appropriate first choice for the diagnosis of most lesions. Fine-needle aspiration is of interest for identification of the presence of metastatic disease in abnormal lymph nodes...
December 7, 2017: Clinical Radiology
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