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Ultrasound guided procedure

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https://www.readbyqxmd.com/read/28927209/intraoperative-imaging-in-traumatic-peripheral-nerve-lesions-correlating-histologic-cross-sections-with-high-resolution-ultrasound
#1
S Shelby Burks, Iahn Cajigas, Jean Jose, Allan D Levi
BACKGROUND: Intraoperative ultrasound (US) has been used as a guide during surgery to better identify deep neuroanatomical structures. OBJECTIVE: To correlate histologic cross-sections from nerve samples taken at the time of surgery with axial, high-resolution US images at similar locations and validate this important tool for intraoperative guidance in nerve surgery. METHODS: Three subjects undergoing nerve repair procedures after traumatic nerve injuries were enrolled prospectively...
April 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28926605/assessment-of-common-somatic-mutations-of-egfr-kras-braf-nras-in-pulmonary-non-small-cell-carcinoma-using-iplex%C3%A2-hs-a-new-highly-sensitive-assay-for-the-massarray%C3%A2-system
#2
Bobbie C Sutton, Ryan T Birse, Kevin Maggert, Tammy Ray, Jessica Hobbs, Amobi Ezenekwe, Jason Kazmierczak, Michael Mosko, Joan Kish, Andrew Bullock, Zonggao Shi, M Sharon Stack, Darryl Irwin
Increased early detection and personalized therapy for lung cancer have coincided with greater use of minimally invasive sampling techniques such as endobronchial ultrasound-guided biopsy (EBUS), endoscopic ultrasound-guided biopsy (EUS), and navigational biopsy, as well as thin needle core biopsies. As many lung cancer patients have late stage disease and other comorbidities that make open surgical procedures hazardous, the least invasive biopsy technique with the highest potential specimen yield is now the preferred first diagnostic study...
2017: PloS One
https://www.readbyqxmd.com/read/28924943/iodized-oil-transarterial-chemoembolization-and-radiofrequency-ablation-for-small-periportal-hepatocellular-carcinoma-comparison-with-nonperiportal-hepatocellular-carcinoma
#3
Sang Yub Lee, Dongho Hyun, Sung Ki Cho, Sung Wook Shin, Sin-Ho Jung, Sang Ah Chi
PURPOSE: This study aims to evaluate the treatment outcomes of iodized oil transarterial chemoembolization (TACE) and subsequent radiofrequency ablation (RFA) for small (≤3 cm) periportal hepatocellular carcinoma (HCC) compared with nonperiportal HCC. METHODS: Twenty-three patients [periportal group (PG); mean age, 59.8 years; 22 men, 1 woman] with periportal HCC (in contact with the portal vein >3 mm in diameter) and 279 patients [nonperiportal group (NPG); mean age, 59...
September 18, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28924588/endoscopic-pancreatic-necrosectomy-why-scuff-when-you-can-flush-the-muck-make-it-an-easy-row-to-hoe
#4
Rinkesh Kumar Bansal, Rajesh Puri, Narendra S Choudhary, Sumit Bhatia, Nisharg Patel, Saurabh K Patle, Gaurav K Patil, Amit Agarwal, Chandra Prabha, Randhir Sud
BACKGROUND AND AIMS:  Endoscopic ultrasound (EUS) guided drainage of symptomatic pancreatic walled-off necrosis (WON) followed by fully covered self-expanding metal stent (FCSEMS) placement offers several advantages such as higher technical success rate and the option of necrosectomy. The aim of this study was to evaluate the safety and efficacy of EUS guided drainage of patients with WON by using FCSEMS and intracavitary lavage with a solution containing hydrogen peroxide and adopting a step-up approach...
September 2017: Endoscopy International Open
https://www.readbyqxmd.com/read/28924476/clinical-validation-of-real-time-tissue-change-monitoring-during-prostate-tissue-ablation-with-high-intensity-focused-ultrasound
#5
Narendra T Sanghvi, Wo-Hsing Chen, Roy Carlson, Clint Weis, Ralf Seip, Toyoaki Uchida, Michael Marberger
BACKGROUND: The purpose of these clinical studies was to validate a Tissue Change Monitoring (TCM) algorithm in vivo. TCM is a quantitative tool for the real-time assessment of HIFU dose. TCM provides quantitative analysis of the backscatter pulse echo signals (pre and immediately post HIFU) for each individual ablative site, using ultrasonic tissue characterization as a surrogate for monitoring tissue temperature. Real-time analysis generates an energy difference parameter (ΔE in dB) that is proportional to tissue temperature...
2017: Journal of Therapeutic Ultrasound
https://www.readbyqxmd.com/read/28924107/transesophageal-endoscopic-ultrasound-eus-guided-fine-needle-aspiration-for-the-diagnosis-of-a-lung-nodule-that-was-non-abutting-on-ct
#6
Yousuke Nakai, Hiroyuki Isayama, Takeo Watanabe, Suguru Mizuno, Hirofumi Kogure, Saburo Matsubara, Minoru Tada, Kazuhiko Koike
An 80-year-old man presented with a right side lung tumor. The tumor was not abutting the bronchus or chest wall; thus, endobronchial ultrasound (EBUS) and CT-guided biopsy were considered to be technically difficult. We therefore attempted endoscopic ultrasound-guided fine needle aspiration (EUS-FNA). Although the nodule was not abutting the esophagus on CT, an irregularly shaped hypoechoic lesion was visualized on EUS. EUS-FNA was successfully performed. The tumor was diagnosed as squamous cell carcinoma...
September 15, 2017: Internal Medicine
https://www.readbyqxmd.com/read/28923373/outbreak-of-burkholderia-cepacia-bacteraemia-in-a-tertiary-care-centre-due-to-contaminated-ultrasound-probe-gel
#7
Rehab Abdelfattah, Suliman Aljumaah, Ahmed Alqahtani, Sahar Althawadi, Irene Barron, Saleh Almofada
BACKGROUND: Burkholderia cepacia is a significant opportunistic organism in hospitalized and immunocompromised patients, particularly in cystic fibrosis [1] AIMS: We describe the epidemiological investigation of an outbreak of B. cepacia bacteraemia. METHODS: The study examined 14 patients during their admission to three ICUs (Intensive Care Units) in a tertiary care hospital between January-June 2016. The outbreak involved 9 (57%) female and 6 (43%) male patients...
September 15, 2017: Journal of Hospital Infection
https://www.readbyqxmd.com/read/28919152/erector-spinae-plane-esp-block-in-the-management-of-post-thoracotomy-pain-syndrome-a-case-series
#8
Mauricio Forero, Manikandan Rajarathinam, Sanjib Adhikary, Ki Jinn Chin
BACKGROUND AND AIMS: Post thoracotomy pain syndrome (PTPS) remains a common complication of thoracic surgery with significant impact on patients' quality of life. Management usually involves a multidisciplinary approach that includes oral and topical analgesics, performing appropriate interventional techniques, and coordinating additional care such as physiotherapy, psychotherapy and rehabilitation. A variety of interventional procedures have been described to treat PTPS that is inadequately managed with systemic or topical analgesics...
September 11, 2017: Scandinavian Journal of Pain
https://www.readbyqxmd.com/read/28918806/endoscopic-ultrasound-guided-gastrojejunostomy
#9
REVIEW
Sunil Amin, Amrita Sethi
Gastric outlet obstruction is a common complication of advanced upper gastrointestinal and pancreatic malignancies. Endoscopic ultrasound (EUS)-guided gastrojejunostomy is a new option that may provide a more durable solution than enteral stenting with shorter recovery time and less cost than surgical gastrojejunostomy. Techniques to perform this procedure include direct EUS-guided puncture and balloon-assisted and free-hand methods. Use of cautery-tipped lumen-apposing metal stent results in higher rates of technical success and shorter procedure times...
October 2017: Gastrointestinal Endoscopy Clinics of North America
https://www.readbyqxmd.com/read/28918800/new-developments-in-endoscopic-ultrasound-tissue-acquisition
#10
REVIEW
Thiruvengadam Muniraj, Harry R Aslanian
Endoscopic ultrasound (EUS)-guided tissue acquisition has greatly evolved since the first EUS-guided fine-needle aspiration was reported nearly 25 years ago. EUS-guided tissue acquisition has become the procedure of choice for sampling of the pancreas, subepithelial lesions, and other structures adjacent to the gastrointestinal tract. This review focuses on recent developments in procedural techniques and needle technologies for EUS-guided tissue acquisition.
October 2017: Gastrointestinal Endoscopy Clinics of North America
https://www.readbyqxmd.com/read/28914343/image-guided-percutaneous-removal-of-ballistic-foreign-bodies-secondary-to-air-gun-injuries
#11
Jacob L Rothermund, Andrew J Rabe, Nicholas A Zumberge, James W Murakami, Patrick S Warren, Mark J Hogan
BACKGROUND: Ballistic injuries with retained foreign bodies from air guns is a relatively common problem, particularly in children and adolescents. If not removed in a timely fashion, the foreign bodies can result in complications, including pain and infection. Diagnostic methods to identify the presence of the foreign body run the entire gamut of radiology, particularly radiography, ultrasound (US) and computed tomography (CT). Removal of the foreign bodies can be performed by primary care, emergency, surgical, and radiologic clinicians, with or without imaging guidance...
September 15, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28910761/phantomless-auto-calibration-and-online-calibration-assessment-for-a-tracked-freehand-2d-ultrasound-probe
#12
Matthew Toews, William M Wells
This paper presents a method for automatically calibrating and assessing the calibration quality of an externally tracked 2D ultrasound (US) probe by scanning arbitrary, natural tissues, as opposed a specialized calibration phantom as is the typical practice. A generative topic model quantifies the posterior probability of calibration parameters conditioned on local 2D image features arising from a generic underlying substrate. Autocalibration is achieved by identifying the maximum a-posteriori (MAP) image-to-probe transform, and calibration quality is assessed online in terms of the posterior probability of the current image-to-probe transform...
September 11, 2017: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28903972/lactobacillus-the-not-so-friendly-bacteria
#13
Abirami Pararajasingam, Juliet Uwagwu
We present a 65-year-old diabetic patient with a complex liver abscess and bacteraemia from Lactobacillus paracasei The abscess resulted in a prolonged hospital stay due to ongoing sepsis despite ultrasound-guided drainage and broad-spectrum antibiotics. Furthermore, the patient developed several secondary complications including a right-sided pleural effusion, an inferior vena cava thrombus and septic lung emboli. The abscess was eventually managed successfully with a prolonged course of antibiotics and multiple ultrasound-guided drainage procedures...
September 13, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28903473/baseline-anatomical-assessment-of-the-uterus-and-ovaries-in-infertile-women-a-systematic-review-of-the-evidence-on-which-assessment-methods-are-the-safest-and-most-effective-in-terms-of-improving-fertility-outcomes
#14
Sarah C Armstrong, Marian Showell, Elizabeth A Stewart, Robert W Rebar, Sheryl Vanderpoel, Cynthia M Farquhar
BACKGROUND: This review focuses on the initial presentation of women who suspect that they are infertile, and how best to assess the anatomy of their uterus and ovaries in order to investigate the cause of their infertility, and potentially improve desired fertility outcomes. This review was undertaken as part of a World Health Organization initiative to assess the evidence available to address guidance for the diagnosis and treatment of infertility within a global context. Providing access to care for infertile women will help to ease the psycho-social burdens, such as ostracization, intimate partner violence and other negative consequences of being involuntarily childless or unable to become pregnant despite desiring a biological child or children...
September 1, 2017: Human Reproduction Update
https://www.readbyqxmd.com/read/28901055/phantom-based-image-quality-test-methods-for-photoacoustic-imaging-systems
#15
William C Vogt, Congxian Jia, Keith A Wear, Brian S Garra, T Joshua Pfefer
As photoacoustic imaging (PAI) technologies advance and applications arise, there is increasing need for standardized approaches to provide objective, quantitative performance assessment at various stages of the product development and clinical translation process. We have developed a set of performance test methods for PAI systems based on breast-mimicking tissue phantoms containing embedded inclusions. Performance standards for mature imaging modalities [magnetic resonance imaging (MRI), computed tomography (CT), and ultrasound] were used to guide selection of critical PAI image quality characteristics and experimental methods...
September 2017: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/28900553/treatment-of-partial-rotator-cuff-tear-with-ultrasound-guided-platelet-rich-plasma
#16
Vetrivel Chezian Sengodan, Sajith Kurian, Raghupathy Ramasamy
BACKGROUND: The treatment of symptomatic partial rotator cuff tear has presented substantial challenge to orthopaedic surgeons as it can vary from conservative to surgical repair. Researches have established the influence of platelet rich plasma in healing damaged tissue. Currently very few data are available regarding the evidence of clinical and radiological outcome of partial rotator cuff tear treated with ultrasound guided platelet rich plasma injection in English literature. MATERIALS AND METHODS: 20 patients with symptomatic partial rotator cuff tears were treated with ultrasound guided platelet rich plasma injection...
2017: Journal of Clinical Imaging Science
https://www.readbyqxmd.com/read/28900518/nail-unit-ultrasound-a-complete-guide-of-the-nail-diseases
#17
REVIEW
Felipe Aluja Jaramillo, Diana Carolina Quiasúa Mejía, Hector Mauricio Martínez Ordúz, Cesar González Ardila
INTRODUCTION: The nails have a functional and esthetic importance for patients. Almost always, the nail disorders are diagnosed on the basis of clinical findings, but imaging methods may be required for a better assessment. These imaging methods, such as ultrasound and magnetic resonance, may help to establish an accurate diagnosis. Magnetic resonance imaging is not widely available and sometimes may be very expensive; that is why, ultrasound is an excellent imaging modality. Our objective is to expose the nail unit anatomy, the nail unit anatomy in ultrasound, and some of the frequent pathologies found in our daily practice...
September 2017: Journal of Ultrasound
https://www.readbyqxmd.com/read/28895369/the-role-of-intravascular-ultrasound-in-lower-limb-revascularization-in-patients-with-peripheral-arterial-disease
#18
Gregory C Makris, Pavlina Chrysafi, Mark Little, Rafiuddin Patel, Mark Bratby, Andrew Wigham, Susan Anthony, Raman Uberoi
INTRODUCTION: The aim of this review is to explore the safety and effectiveness of intravascular ultrasound (IVUS) during lower limb endovascular interventions in patients with peripheral arterial disease (PAD). METHODS: A systematic review of the PubMed and Scopus databases was performed according to PRISMA guidelines. Clinical studies evaluating IVUS as an adjunct to angiography during revascularization procedures in patients with PAD were included. RESULTS: Thirteen studies were identified, with a total number of 2,258 patients having had IVUS for PAD intervention...
September 11, 2017: International Angiology: a Journal of the International Union of Angiology
https://www.readbyqxmd.com/read/28894765/active-phantoms-a-paradigm-for-ultrasound-calibration-using-phantom-feedback
#19
Alexis Cheng, Xiaoyu Guo, Haichong K Zhang, Hyun Jae Kang, Ralph Etienne-Cummings, Emad M Boctor
In ultrasound (US)-guided medical procedures, accurate tracking of interventional tools is crucial to patient safety and clinical outcome. This requires a calibration procedure to recover the relationship between the US image and the tracking coordinate system. In literature, calibration has been performed on passive phantoms, which depend on image quality and parameters, such as frequency, depth, and beam-thickness as well as in-plane assumptions. In this work, we introduce an active phantom for US calibration...
July 2017: Journal of Medical Imaging
https://www.readbyqxmd.com/read/28891826/injection-volume-and-anesthetic-effect-in-serratus-plane-block
#20
Tatsuya Kunigo, Takeshi Murouchi, Shuji Yamamoto, Michiaki Yamakage
BACKGROUND AND OBJECTIVES: Serratus plane block is performed for analgesia of the anterior chest wall. However, there has been no study concerning the appropriate volume for this block. This prospective randomized controlled study assesses the dermatomal spread and analgesic effects of serratus plane block. METHODS: Ultrasound-guided serratus plane block was performed for breast cancer surgery. The patients were randomly assigned to receive 20 or 40 mL of 0.375% ropivacaine...
September 7, 2017: Regional Anesthesia and Pain Medicine
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