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Ultrasound guided procedure

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https://www.readbyqxmd.com/read/28332158/first-clinical-use-of-the-echotrack-guidance-approach-for-radiofrequency-ablation-of-thyroid-gland-nodules
#1
Alfred Michael Franz, Alexander Seitel, Nasrin Bopp, Christian Erbelding, Dominique Cheray, Stefan Delorme, Frank Grünwald, Hüdayi Korkusuz, Lena Maier-Hein
PURPOSE: Percutaneous radiofrequency ablation (RFA) of thyroid nodules is an alternative to surgical resection that offers the benefits of minimal scars for the patient, lower complication rates, and shorter treatment times. Ultrasound (US) is the preferred modality for guiding these procedures. The needle is usually kept within the US scanning plane to ensure needle visibility. However, this restricts flexibility in both transducer and needle movement and renders the procedure difficult, especially for inexperienced users...
March 22, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28332142/flat-detector-cone-beam-ct-guided-nephrostomy-using-virtual-navigation-in-patients-with-iatrogenic-ureteral-injury
#2
Dechao Jiao, Zongming Li, Zhiguo Li, Shaofeng Shui, Xin-Wei Han
PURPOSE: To evaluate the feasibility of flat detector cone beam computed tomography (CBCT)-guided nephrostomy using virtual navigation in patients with iatrogenic ureteral injury. MATERIALS AND METHODS: A retrospective review of percutaneous nephrostomy (PN) revealed the use of CBCT with 3D virtual navigation guidance in 42 procedures (40 patients) for patients with iatrogenic ureteral injury. All procedures were shown as second-line interventions after failed ultrasound-guided nephrostomy...
March 22, 2017: La Radiologia Medica
https://www.readbyqxmd.com/read/28331886/effects-of-line-fiducial-parameters-and-beamforming-on-ultrasound-calibration
#3
Golafsoun Ameri, John S H Baxter, A Jonathan McLeod, Terry M Peters, Elvis C S Chen
Ultrasound (US)-guided interventions are often enhanced via integration with an augmented reality environment, a necessary component of which is US calibration. Calibration requires the segmentation of fiducials, i.e., a phantom, in US images. Fiducial localization error (FLE) can decrease US calibration accuracy, which fundamentally affects the total accuracy of the interventional guidance system. Here, we investigate the effects of US image reconstruction techniques as well as phantom material and geometry on US calibration...
January 2017: Journal of Medical Imaging
https://www.readbyqxmd.com/read/28331834/ultrasound-guided-electrochemotherapy-for-the-treatment-of-a-clear-cell-thymoma-in-a-cat
#4
Enrico Pierluigi Spugnini, Francesco Menicagli, Michela Pettorali, Alfonso Baldi
A twelve-year-old male castrated domestic shorthair cat was presented for rapidly progressing respiratory distress. The cat was depressed, tachypneic and moderately responsive. Ultrasonography showed a mediastinal mass associated with a significant pleural effusion that needed tapping every five to seven days. Ultrasound guided biopsy yielded a diagnosis of clear cell thymoma upon histopathology. After complete staging procedures, the owner elected to treat the cat with electrochemotherapy (ECT) using systemic bleomycin...
2017: Open veterinary journal
https://www.readbyqxmd.com/read/28331821/comparison-between-endobronchial-ultrasound-guided-transbronchial-biopsy-and-ct-guided-transthoracic-lung-biopsy-for-the-diagnosis-of-peripheral-lung-cancer-a-systematic-review-and-meta-analysis
#5
Ping Zhan, Qing-Qing Zhu, Ying-Ying Miu, Ya-Fang Liu, Xiao-Xia Wang, Ze-Jun Zhou, Jia-Jia Jin, Qian Li, Shinji Sasada, Takehiro Izumo, Chih-Yen Tu, Wen-Chien Cheng, Matthew Evison, Tang-Feng Lv, Yong Song
BACKGROUND: With the release of the National Lung Screening Trial results, the detection of peripheral pulmonary lesions (PPLs) is likely to increase. Computed tomography (CT)-guided percutaneous transthoracic needle biopsy (PTNB) and radial probe endobronchial ultrasound (r-EBUS)-guided transbronchial lung biopsy (TBLB) are recommended for tissue diagnosis of PPLs. METHODS: A systematic review of published literature evaluating the accuracy of r-EBUS-TBLB and CT-PTNB for the diagnosis of PPLs was performed to determine point sensitivity and specificity, and to construct a summary receiver-operating characteristic curve...
February 2017: Translational Lung Cancer Research
https://www.readbyqxmd.com/read/28331537/combined-totally-mini-invasive-approach-in-necrotizing-pancreatitis-a-case-report-and-systematic-literature-review
#6
REVIEW
Luca Sorrentino, Osvaldo Chiara, Massimiliano Mutignani, Fabrizio Sammartano, Paolo Brioschi, Stefania Cimbanassi
BACKGROUND: Currently, both the step-up approach, combining percutaneous drainage (PD) and video-assisted retroperitoneal debridement (VARD), and endoscopic transgastric necrosectomy (ETN) are mini-invasive techniques for infected necrosis in severe acute pancreatitis. A combination of these approaches could maximize the management of necrotizing pancreatitis, conjugating the benefits from both the experiences. However, reporting of this combined strategy is anecdotal. This is the first reported case of severe necrotizing pancreatitis complicated by biliary fistula treated by a combination of ETN, PD, VARD, and endoscopic biliary stenting...
2017: World Journal of Emergency Surgery: WJES
https://www.readbyqxmd.com/read/28331240/minimally-invasive-breast-fibroadenoma-excision-using-an-ultrasound-guided-vacuum-assisted-biopsy-device
#7
Thomas Papathemelis, Stefanie Heim, Michael P Lux, Ines Erhardt, Anton Scharl, Sophia Scharl
Introduction We studied the extent to which an ultrasound-guided vacuum-assisted biopsy device ("hand-held Mammotome") could be used not only as a valuable tool for investigation of suspicious breast lesions, but also therapeutically for the complete removal of breast fibroadenomas. Materials and Methods 132 aspiration biopsies showing fibroadenoma on histology were collected retrospectively. We ascertained whether there were residual findings on breast ultrasound at a median follow-up of approx. 9 months following biopsy...
February 2017: Geburtshilfe und Frauenheilkunde
https://www.readbyqxmd.com/read/28330596/role-of-18-f-choline-pet-ct-in-guiding-biopsy-in-patients-with-risen-psa-levels-and-previous-negative-biopsy-for-prostate-cancer
#8
G A Jiménez Londoño, A M García Vicente, M Amo-Salas, F Fúnez Mayorga, M A López Guerrero, M P Talavera Rubio, P Gutierrez Martin, B González García, J A de la Torre Pérez, Á M Soriano Castrejón
OBJECTIVES: To study (18)F-Choline PET/CT in the diagnosis and biopsy guide of prostate cancer (pCa) in patients with persistently high prostate-specific antigen (PSA) and previous negative prostate biopsy. To compare the clinical risk factors and metabolic variables as predictors of malignancy. METHODS: Patients with persistently elevated PSA in serum (total PSA >4ng/mL) and at least a previous negative or inconclusive biopsy were consecutively referred for a whole body (18)F-Choline PET/CT...
March 15, 2017: Revista Española de Medicina Nuclear e Imagen Molecular
https://www.readbyqxmd.com/read/28329923/-actinomycosis-involving-chronic-pancreatitis-a-case-report-with-literature-review
#9
Seong Jae Yeo, Chang Min Cho, Min Kyu Jung, Ki Ju Kim, Myung Hi Kim, Seung Hyun Cho, Gab Chul Kim, An Na Seo
Actinomycosis is a slowly progressive, chronic infectious disease. It is caused by the genus Actinomyces, which are gram-positive anaerobic bacteria. It presents as a mass-like lesion, composed of bacterial nidus and characteristic granulomatous inflammatory fibrosis. As such, it has frequently been mistaken for a malignancy. Surgical resection is a common procedure in these patients prior to a definite diagnosis. Although actinomycosis can occur in a variety of regions, including oral-cervicofacial, thoracic, and abdominopelvic cavities, the involvement of the pancreas is very rare...
March 25, 2017: Korean Journal of Gastroenterology, Taehan Sohwagi Hakhoe Chi
https://www.readbyqxmd.com/read/28328862/postoperative-analgesia-comparing-levobupivacaine-and-ropivacaine-for-brachial-plexus-block-a-randomized-prospective-trial
#10
Kunitaro Watanabe, Joho Tokumine, Alan Kawarai Lefor, Kumi Moriyama, Hideaki Sakamoto, Tetsuo Inoue, Tomoko Yorozu
BACKGROUND: On a pharmacologic basis, levobupivacaine is expected to last longer than ropivacaine. However, most reports of these anesthetics for brachial plexus block do not suggest a difference in analgesic effect. The aim of this study is to compare the postoperative analgesic effects of levobupivacaine and ropivacaine when used for treating ultrasound-guided brachial plexus block. METHODS: A total of 62 patients undergoing orthopedic surgery procedures were prospectively enrolled and randomized to receive levobupivacaine (group L, N = 31) or ropivacaine (group R, N = 31)...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28327433/sonographic-prediction-of-outcome-of-vacuum-deliveries-a-multicenter-prospective-cohort-study
#11
Birgitte H Kahrs, Sana Usman, Tullio Ghi, Aly Youssef, Erik A Torkildsen, Elsa Lindtjørn, Tilde B Østborg, Sigurlaug Benediktsdottir, Lis Brooks, Lotte Harmsen, Pål R Romundstad, Kjell Å Salvesen, Christoph C Lees, Torbjørn M Eggebø
BACKGROUND: Safe management of the second stage of labor is of great importance. Unnecessary interventions should be avoided and correct timing of interventions focused. Ultrasound assessment of fetal position and station has a potential to improve the precision in diagnosing and managing prolonged or arrested labors. The decision to perform vacuum delivery is traditionally based on subjective assessment by digital vaginal examination and clinical expertise and there is currently no method of objectively quantifying the likelihood of successful delivery...
March 18, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28326321/ultrasound-guided-versus-fluoroscopy-guided-deep-cervical-plexus-block-for-the-treatment-of-cervicogenic-headache
#12
Qing Wan, Haiyun Yang, Xiao Li, Caina Lin, Songjian Ke, Shaoling Wu, Chao Ma
Objective. The aim of this study was to compare the efficacy of ultrasound-guided deep cervical plexus block with fluoroscopy-guided deep cervical plexus block for patients with cervicogenic headache (CeH). Methods. A total of 56 patients with CeH were recruited and randomly assigned to either the ultrasound-guided (US) or the fluoroscopy-guided (FL) injection group. A mixture of 2-4 mL 1% lidocaine and 7 mg betamethasone was injected along C2 and/or C3 transverse process. The measurement of pain was evaluated by patients' ratings of a 10-point numerical pain scale (NPS) before and 2 wks, 12 wks, and 24 wks after treatments...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28325432/wide-awake-ultrasound-guided-percutaneous-extensor-central-slip-tenotomy-for-chronic-mallet-finger-a-prospective-study-of-14-cases-with-videos
#13
T Apard, G Candelier
The central slip tenotomy described by Fowler is an effective option for treating chronic mallet finger in order to avoid swan neck deformity of the finger. In a prospective study of 14 cases (13 failures of conservative treatment and one case of untreated mallet finger), we performed percutaneous ultrasound-guided central slip tenotomy with a 19 G needle using the wide-awake local anesthesia and no tourniquet (WALANT) technique. The mean extensor lag before surgery was 28° (range 20°-40°) and three patients had a swan neck deformity...
April 2017: Hand Surgery and Rehabilitation
https://www.readbyqxmd.com/read/28324873/endobronchial-ultrasound-elastography-for-evaluation-of-intrathoracic-lymph-nodes-a-pilot-study
#14
Jiayuan Sun, Xiaoxuan Zheng, Xiaowei Mao, Lei Wang, Hongkai Xiong, Felix J F Herth, Baohui Han
BACKGROUND: Endobronchial ultrasound (EBUS) elastography is a new imaging procedure for describing the elasticity of intrathoracic lesions and providing important additional diagnostic information. OBJECTIVES: The aim of this study was to utilize the feasibility of qualitative and quantitative methods to evaluate the ability of EBUS elastography to differentiate between benign and malignant mediastinal and hilar lymph nodes (LNs) during EBUS-guided transbronchial needle aspiration (EBUS-TBNA)...
March 22, 2017: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/28324812/the-effects-of-ovarian-biopsy-and-blood-sampling-methods-on-salivary-cortisol-and-behaviour-in-sows
#15
Jinhyeon Yun, Stefan Björkman, Merja Pöytäkangas, Olli Peltoniemi
In reproductive physiology research, experimental animals are often subjected to stressful procedures, including blood sampling and biopsy. In this present study, presence of pain or distress induced by four different procedures was examined using a measurement of salivary cortisol levels and activity observations in sows. The treatments were: 1) PAL: The ovary was palpated through the rectum without snaring, 2) TUB: transvaginal ultrasound-guided biopsy of the ovary was conducted without snaring, 3) SNA: a soft rope snare was placed around the maxilla, 4) CAT: A soft rope snare was placed around the maxilla, and an intravenous catheter was inserted through the ear vein of the sows...
March 11, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28319345/percutaneous-microwave-ablation-of-exophytic-tumors-in-hepatocellular-carcinoma-patients-safe-or-not
#16
Jianmin Ding, Yan Zhou, Yandong Wang, Xiang Jing, Fengmei Wang, Yijun Wang
BACKGROUND & AIMS: To explore the long-term outcomes and safety of ultrasound-guided percutaneous microwave ablation (MWA) of exophytic tumors in hepatocellular carcinoma (HCC) patients. METHODS: One hundred and thirty-two patients with subcapsular HCC were enrolled in this retrospective study. These patients were divided into the exophytic group (n=71) and non-exophytic group (n=61) according to the location of the tumor(s). A special technology of puncture and ablation was performed to treat the exophytic tumors...
March 20, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28319286/a-successful-model-to-learn-and-implement-ultrasound-guided-venous-catheterization-in-apheresis
#17
Nigopan Gopalasingam, Anna-Marie Eller Thomsen, Lars Folkersen, Peter Juhl-Olsen, Erik Sloth
BACKGROUND: Apheresis treatments can be performed with peripheral venous catheters (PVC), although central venous catheters (CVC) are inserted when PVCs fail or patient with history of difficult vascular access prior to the apheresis. Ultrasound guidance for PVC has shown promising results in other settings. PURPOSE: To investigate if ultrasound guidance for PVC could be implemented among apheresis nurses. Second, how implementation of ultrasound guidance affected the number of CVCs used for apheresis per patient...
March 20, 2017: Journal of Clinical Apheresis
https://www.readbyqxmd.com/read/28319265/derivation-of-a-performance-checklist-for-ultrasound-guided-arthrocentesis-using-the-modified-delphi-method
#18
Derek Kunz, Manoj Pariyadath, Mary Wittler, Kim Askew, David Manthey, Nicholas Hartman
OBJECTIVES: Arthrocentesis is an important skill for physicians in multiple specialties. Recent studies indicate a superior safety and performance profile for this procedure using ultrasound guidance for needle placement, and improving quality of care requires a valid measurement of competency using this modality. METHODS: We endeavored to create a validated tool to assess the performance of this procedure using the modified Delphi technique and experts in multiple disciplines across the United States...
March 20, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28319023/isolated-bilateral-simplex-ureteric-ectopia-bladder-capacity-as-an-indicator-of-continence-outcome
#19
Vasilis Stavrinides, Paul Charlesworth, Dan Wood, Divyesh Desai, Abraham Cherian, Imran Mushtaq, Peter Cuckow, Naima Smeulders
INTRODUCTION: Isolated bilateral simplex ectopic ureters (BSEUs) are rare but pose a therapeutic challenge: ureteric reimplantation alone does not accomplish continence in all. Identifying the patients needing additional procedures for continence early could prevent multiple operations. OBJECTIVE: Potential preoperative indicators for postoperative continence are explored in eight BSEU girls without cloacal, anorectal, or spinal anomalies. STUDY DESIGN: With institutional approval, all patients with BSEU between 1985 and 2012 were retrospectively reviewed...
March 6, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28318889/non-invasive-liver-ablation-using-histotripsy-preclinical-safety-study-in-an-in%C3%A2-vivo-porcine-model
#20
Eli Vlaisavljevich, Gabe Owens, Jonathan Lundt, Dejan Teofilovic, Kimberly Ives, Alexander Duryea, Jim Bertolina, Theodore H Welling, Zhen Xu
This study investigates the safety profile for use of histotripsy, a non-invasive ultrasonic ablation method currently being developed for the treatment of liver cancer, for liver ablation in an in vivo porcine model. Histotripsy treatments were applied to the liver and hepatic veins of 22 porcine subjects, with half of the subjects receiving systemic heparinization. Vital signs (heart rate, blood pressure, temperature, electrocardiogram and SpO2) were monitored throughout the procedure and for 1 h post-treatment...
March 16, 2017: Ultrasound in Medicine & Biology
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