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Image guided surgery

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https://www.readbyqxmd.com/read/27905093/magnetic-resonance-imaging-guided-laser-interstitial-thermal-therapy-for-treatment-of-drug-resistant-epilepsy
#1
Joon Y Kang, Michael R Sperling
Surgery is the most effective treatment for drug-resistant epilepsy. Long-term studies demonstrate that about 60% to 80% of patients become seizure-free after anterior temporal lobectomy and a majority of patients (about 95%) report significant seizure reduction after surgery. In the last few years, there has been significant advances in minimally invasive surgical techniques to treat drug-resistant epilepsy. These minimally invasive procedures have significant advantages over open surgery in that they produce less immediate discomfort and disability, while allowing for greater preservation of functional tissue...
November 30, 2016: Neurotherapeutics: the Journal of the American Society for Experimental NeuroTherapeutics
https://www.readbyqxmd.com/read/27903338/-ultrasound-imaging-increases-first-attempt-success-rate-of-neuraxial-block-in-elderly-patients
#2
J Geng, X L Chen, X D Wang, X Y Guo, M Li
Objective: To verify whether preprocedural ultrasound of the lumbar spine could improve first-attempt success rate (defined as a successful neuraxial anesthesia with only one skin puncture) of neuraxial block in elderly patients. Methods: From septemble 2015 to February 2016, 200 elderly patients undergoing lower-limb surgery with neuraxial block at the Peking Universty Third Hospital were enrolled in this study.RandA 1.0 software was used to randomize patients into two groups: conventional surface landmark-guided group (group LM) and ultrasound-assisted group (group US)...
November 22, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/27903114/a-quantitative-analysis-of-craniopharyngioma-cyst-expansion-during-and-after-radiation-therapy-and-surgical-implications
#3
Kelly Lamiman, Kenneth K Wong, Benita Tamrazi, Jason D Nosrati, Arthur Olch, Eric L Chang, Erin N Kiehna
OBJECTIVE When complete resection of craniopharyngioma is not achievable or the sequelae are prohibitive, limited surgery and radiation therapy have demonstrated excellent local disease control while minimizing treatment-related sequelae. When residual tissue exists, there is a propensity for further cyst development and expansion during and after radiation therapy. This can result in obstructive hydrocephalus, visual changes, and/or clinical decline. The authors present a quantitative analysis of cyst expansion during and after radiotherapy and examine how it affected subsequent management...
December 2016: Neurosurgical Focus
https://www.readbyqxmd.com/read/27902614/associating-pancreaticostomy-and-biliary-irrigation-for-staged-pancreaticoduodenectomy-approach-to-pancreatic-intraductal-papillary-mucinous-neoplasm-with-recurrent-cholangitis-and-severe-jaundice-a-case-report
#4
Chao Dai, Siyuan Lou, Fan Zhou
PATIENT CONCERNS: A 63-year-old man was hospitalized with history of abdominal pain since more than 1 year, and that of fever with chills since 2 weeks. DIAGNOSES: Based on the laboratory investigations and radiologic findings, a preliminary diagnosis of pancreatic intraductal papillary mucinous neoplasm (IPMN) with recurrent cholangitis and severe jaundice was made. INTERVENTIONS: An initial attempt at endoscopic and image-guided drainage proved unsuccessful...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27900764/a-novel-thyroid-cancer-nodal-map-classification-system-to-facilitate-nodal-localization-and-surgical-management-the-a-to-d-map
#5
Marybeth Cunnane, Natalia Kyriazidis, Dipti Kamani, Amy F Juliano, Hillary R Kelly, Hugh D Curtin, Samuel R Barber, Gregory W Randolph
OBJECTIVES/HYPOTHESIS: To evaluate the effectiveness, reproducibility, and usability of our proposed nodal nomenclature and classification system employed for several years in our high-volume thyroid cancer unit, for the adequate localization and mapping of lymph nodes in thyroid cancer patients with extensive nodal disease. STUDY DESIGN: Retrospective review. METHODS: Thirty-three thyroid cancer patients with extensive nodal disease treated from January 2004 to May 2013 were included in our study...
November 30, 2016: Laryngoscope
https://www.readbyqxmd.com/read/27896640/role-of-axillary-ultrasound-magnetic-resonance-imaging-and-ultrasound-guided-fine-needle-aspiration-biopsy-in-the-preoperative-triage-of-breast-cancer-patients
#6
I Barco, C Chabrera, A García-Fernández, M Fraile, S González, L Canales, J M Lain, C González, M C Vidal, E Vallejo, J Deu, A Pessarrodona, N Giménez, M García Font
PURPOSE: Roughly two-thirds of early breast cancer cases are associated with negative axillary nodes and do not benefit from axillary surgery at all. Accordingly, there is an ongoing search for non-surgical staging procedures to avoid lymph-node dissection or sentinel node biopsy (SNB). Non-invasive imaging techniques with very high sensitivity (Se) and negative predictive value (NPV) could eventually replace SNB. We aimed to establish the role of axillary US and MRI, alone or in combination, associated with ultrasound-guided fine-needle aspiration biopsy (US-FNAB) in the prediction of axillary node involvement...
November 28, 2016: Clinical & Translational Oncology
https://www.readbyqxmd.com/read/27896519/image-guidance-technology-and-the-surgical-resection-of-spinal-column-tumors
#7
REVIEW
Bhargav Desai, Jonathan Hobbs, Grant Hartung, Guoren Xu, Ziya L Gokaslan, Andreas Linninger, Ankit I Mehta
Precision imaging is paramount to achieving success in surgical resection of many spinal tumors, whether the goal involves guiding a surgical cure for primary tumors or improving neurological decompression for metastatic lesions. Pre-operatively, image visualization is intimately involved with defining a clear target and surgical planning. Intra-operatively, image-guidance technology allows for surgeons to maximize the probability for gross total resection of spinal cord tumors and minimize damage to adjacent structures...
November 28, 2016: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/27885893/tumor-vessel-relationships-in-pancreatic-ductal-adenocarcinoma-at-multidetector-ct-different-classification-systems-and-their-influence-on-treatment-planning
#8
Ahmed M Zaky, Christopher L Wolfgang, Matthew J Weiss, Ammar A Javed, Elliot K Fishman, Atif Zaheer
Treatment of pancreatic ductal adenocarcinoma (PDAC) remains a challenge, given its propensity for early systemic spread and growth into the adjacent vital vascular structures. With the advent of newer surgical techniques and chemoradiation therapies, multidetector computed tomography (CT) plays a crucial role in the identification of patients with borderline resectable disease who may benefit from such treatments. Stage III PDAC is divided into two categories-locally advanced, defined by arterial encasement or nonreconstructible portovenous axis involvement; and borderline resectable, defined by limited arterial involvement and/or reconstructible portovenous involvement...
November 25, 2016: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/27885452/the-zero-ischemia-index-zii-a-novel-criterion-for-predicting-complexity-and-outcomes-of-off-clamp-partial-nephrectomy
#9
Yaohui Li, Lin Zhou, Tingchang Bian, Zhuoyi Xiang, Yeqing Xu, Yanjun Zhu, Xiaoyi Hu, Shuai Jiang, Jianming Guo, Hang Wang
PURPOSES: Although several anatomical classification systems that aimed to standardize the description of renal tumors were previously reported, a special classification system is required to help predict the complexity and perioperative outcomes of off-clamp nephron-sparing surgery (NSS). We developed a novel criterion-zero ischemia index (ZII), aiming to help predict the perioperative outcomes after off-clamp NSS and guide patient selection. METHODS: We retrospectively evaluated 149 patients between June 2009 and July 2014 in our institution who underwent off-clamp NSS with available computed tomography images...
November 24, 2016: World Journal of Urology
https://www.readbyqxmd.com/read/27877237/near-infrared-fluorescent-nanoparticles-derived-from-hyaluronic-acid-improve-tumor-contrast-for-image-guided-surgery
#10
Tanner K Hill, Sneha S Kelkar, Nicholas E Wojtynek, Joshua J Souchek, William M Payne, Kristina Stumpf, Frank C Marini, Aaron M Mohs
Tumor tissue that remains undetected at the primary surgical site can cause tumor recurrence, repeat surgery, and treatment strategy alterations that impose a significant patient and healthcare burden. Intraoperative near infrared fluorescence (NIRF) imaging is one potential method to identify remaining tumor by visualization of NIR fluorophores that are preferentially localized to the tumor. This requires development of fluorophores that consistently identify tumor tissue in different patients and tumor types...
2016: Theranostics
https://www.readbyqxmd.com/read/27876186/randomized-trial-for-superiority-of-high-field-strength-intra-operative-magnetic-resonance-imaging-guided-resection-in-pituitary-surgery
#11
Vivek Tandon, Amol Raheja, Ashish Suri, P Sarat Chandra, Shashank S Kale, Rajinder Kumar, Ajay Garg, Mani Kalaivani, Ravindra M Pandey, Bhawani S Sharma
Till date there are no randomized trials to suggest the superiority of intra-operative magnetic resonance imaging (IOMRI) guided trans-sphenoidal pituitary resection over two dimensional fluoroscopic (2D-F) guided resections. We conducted this trial to establish the superiority of IOMRI in pituitary surgery. Primary objective was to compare extent of tumor resection between the two study arms. It was a prospective, randomized, outcome assessor and statistician blinded, two arm (A: IOMRI, n=25 and B: 2D-F, n=25), parallel group clinical trial...
November 18, 2016: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/27875119/image-guided-interventions-we-ve-come-a-long-way-but-are-we-there
#12
Cristian A Linte, Ziv R Yaniv
While the term "image-guided surgery" has gained popularity fairly recently, the use of imaging for medical interventions dates as far back as the beginning of the 20th century. Dr. George H. Gray of Lynn, Massachusetts, reported in his 1908 article "X-rays in Surgical Work," published in volume 2 of the Journal of Therapeutics and Dietetics, that "the one great stride in the handling of difficult cases was the accurate diagnosis made possible by the use of the X-rays." His story points to the day when a seamstress presented to his office with a broken sewing needle embedded in her hand...
November 2016: IEEE Pulse
https://www.readbyqxmd.com/read/27872946/implementation-of-image-guided-intensity-modulated-accelerated-partial-breast-irradiation-three-year-results-of-a%C3%A2-phase%C3%A2-ii-clinical-study
#13
Norbert Mészáros, Tibor Major, Gábor Stelczer, Zoltán Zaka, Emőke Mózsa, Dávid Pukancsik, Zoltán Takácsi-Nagy, János Fodor, Csaba Polgár
PURPOSE: To report 3‑year results of accelerated partial breast irradiation (APBI) using image-guided intensity-modulated radiotherapy (IG-IMRT) following breast conserving surgery (BCS) for low-risk early invasive breast cancer. PATIENTS AND METHODS: Between July 2011 and March 2014, 60 patients with low-risk early invasive breast cancer underwent BCS and were enrolled in this phase II prospective study. The total dose was 36.9 Gy (9 fractions of 4.1 Gy, two fractions/day)...
November 21, 2016: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/27872527/role-of-axillary-ultrasound-fine-needle-aspiration-cytology-and-sentinel-lymph-node-biopsy-in-clinically-n0-breast-cancer
#14
Gaurav Goel, P D Janaki, N V Smitha, Rajanbabu Anupama, P Shanmugha Sundaram, Y S Nataraj, D K Vijaykumar
This study evaluates the combined role of axillary ultrasound, fine needle aspiration cytology and sentinel lymph node biopsy in clinically N0 axilla. Between January 2014 and June 2015, 150 women with early breast cancer underwent axillary ultrasound as a first investigation for nodal status. Suspicious nodes were subjected to image guided fine needle aspiration cytology. Non-suspicious and fine needle aspiration cytology negative axillary nodes proceeded to sentinel lymph node biopsy at time of primary breast surgery...
December 2016: Indian Journal of Surgical Oncology
https://www.readbyqxmd.com/read/27870681/kidney-cancer
#15
S Brandon Hancock, Christos S Georgiades
The number of new cases of renal cell carcinoma has been steadily increasing since the 1960s, reaching 62,000 and 89,000 annually in the United States and Europe, respectively, in 2016. The current standard of care for early-stage disease is nephron-sparing surgery, which has a demonstrated long-term disease-free survival and an acceptable safety profile. Technical developments (thin, powerful probes and real-time image guidance systems) have allowed image-guided percutaneous ablation to become a viable option for stage I renal cell carcinoma...
November 2016: Cancer Journal
https://www.readbyqxmd.com/read/27870618/spinal-injections-for-pain-management
#16
William E Palmer
Image-guided spinal injection is commonly performed in symptomatic patients to decrease pain severity, confirm the pain generator, and delay or avoid surgery. This article focuses on the radiologist as spine interventionist and addresses the following four topics relevant to the radiologist who performs corticosteroid injections for pain management: (a) the rationale behind corticosteroid injection, (b) the interaction with patients, (c) the role of imaging in procedural selection and planning, and (d) the pearls and pitfalls of fluoroscopically guided injections...
December 2016: Radiology
https://www.readbyqxmd.com/read/27870572/impact-of-extent-of-resection-on-local-control-and-survival-in-patients-from-the-cog-a3973-study-with-high-risk-neuroblastoma
#17
Daniel von Allmen, Andrew M Davidoff, Wendy B London, Collin Van Ryn, Daphne A Haas-Kogan, Susan G Kreissman, Geetika Khanna, Nancy Rosen, Julie R Park, Michael P La Quaglia
Purpose This analysis of patients in the Children's Oncology Group A3973 study evaluated the impact of extent of primary tumor resection on local progression and survival and assessed concordance between clinical and central imaging review-based assessments of resection extent. Patients and Methods The analytic cohort (n = 220) included patients who had both central surgery review and resection of the primary tumor site. For this analysis, resection categories of < 90% and ≥ 90% were used, with data on resection extent derived from operating surgeons' assessments (all patients), as well as blinded central imaging review of computed tomography scans for a subset of 84 patients; assessment results were compared for concordance...
November 21, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/27867944/advances-in-fluorescent-image-guided-surgery
#18
REVIEW
Mark J Landau, Daniel J Gould, Ketan M Patel
Fluorescence imaging is increasingly gaining intraoperative applications. Here, we highlight a few recent advances in the surgical use of fluorescent probes.
October 2016: Annals of Translational Medicine
https://www.readbyqxmd.com/read/27866380/imaging-diagnosis-ultrasound-uncommon-features-of-an-abdominal-gossypiboma-in-a-dog
#19
Arnaud Louvet, Anne-Carole Duconseille
An abdominal mass was incidentally detected in a 12-year-old, neutered female, crossed breed dog. Abdominal ultrasonographic examination showed a well-delineated, irregular, heterogeneous mass that did not generate any distal acoustic shadowing. Transcutaneous US-guided biopsy of the mass were nonconclusive but raised the possibility of neoplasia. Surgery discovered a mass embedded in the omentum and a large quantity of surgical sponges were identified in cut section. To the authors' knowledge, this represents the first published case of gossypiboma casting no characteristic distal acoustic shadowing...
November 20, 2016: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/27866094/-neo-adjuvant-treatment-in-localised-soft-tissue-sarcoma-the-unsolved-affair
#20
REVIEW
Maristella Saponara, Silvia Stacchiotti, Paolo G Casali, Alessandro Gronchi
Soft tissue sarcomas (STS) are rare and heterogeneous tumours. A correct definition of STS is imperative from the very beginning of disease management, to guide the diagnostic and imaging work-up, and help to establish the prognosis on which the therapeutic strategy will be based. Over the last few years, many efforts have been made to identify characteristics that could predict disease behaviour and to enrich the therapeutic armamentarium against the advanced disease, that is still characterised by poor prognosis...
November 17, 2016: European Journal of Cancer
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