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Percutaneous biopsy

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https://www.readbyqxmd.com/read/29325491/safety-of-outpatient-percutaneous-native-renal-biopsy-in-systemic-autoimmune-diseases-results-from-a-monocentric-cohort
#1
D Roccatello, S Sciascia, D Rossi, C Naretto, M Bazzan, L Solfietti, M Sandrone, M Radin, S Baldovino, E Menegatti
No abstract text is available yet for this article.
January 1, 2018: Lupus
https://www.readbyqxmd.com/read/29322559/cest-dixon-for-human-breast-lesion-characterization-at-3-t-a-preliminary-study
#2
Shu Zhang, Stephen Seiler, Xinzeng Wang, Ananth J Madhuranthakam, Jochen Keupp, Emily E Knippa, Robert E Lenkinski, Elena Vinogradov
PURPOSE: Chemical exchange saturation transfer (CEST) MRI for breast lesion characterization is promising. However, artifacts are prone to develop in breast CEST imaging as a result of strong lipid signals. The aims of the study are (i) to develop and validate the CEST-Dixon imaging sequence for simultaneous water-fat separation and B0 mapping; and (ii) use the CEST-Dixon method to characterize suspicious lesions in patients undergoing percutaneous biopsy. METHODS: The gradient-echo multi-echo Dixon acquisition is used to create fat-free CEST and B0 maps...
January 10, 2018: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/29319916/1-0t-mr-guided-percutaneous-coaxial-cutting-needle-biopsy-in-pancreatic-lesion-diagnosis
#3
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/29319774/renal-artery-pseudoaneurysm
#4
Luiz Inácio Roman, Cauana Fabrício Efel, Victória Teles França, Carolina Meert Merten, Claus Dieter Dummer
The renal artery pseudoaneurysm embody a rare vascular complication coming of percutaneous procedures, renal biopsy, nephrectomy, penetrating traumas and more rarely blunt traumas. The clinical can be vary according the patient, the haematuria is the symptom more commom. Is necessary a high level of clinical suspicion for your diagnosis, this can be elucidated by through complementary exams as the eco-color Doppler and the computed tomography scan (CT). This report is a case of a patient submitted a right percutaneous renal biopsy and that, after the procedure started with macroscopic haematuria, urinary tenesmus and hypogastric pain...
October 2017: Jornal Brasileiro de Nefrologia: ʹorgão Oficial de Sociedades Brasileira e Latino-Americana de Nefrologia
https://www.readbyqxmd.com/read/29319492/risk-of-complications-with-use-of-aspirin-during-renal-biopsy-a-systematic-review
#5
Vinayak Kumar, Matthew D Mitchell, Craig A Umscheid, Jeffrey S Berns, Jonathan J Hogan
BACKGROUND: Bleeding is a well-known complication of percutaneous renal biopsy (PRB). Thus, antiplatelet agents are routinely held for most patients undergoing elective PRB to decrease bleeding risk. MATERIALS AND METHODS: In this systematic review, we examine the association between antiplatelet use and bleeding during PRB. MEDLINE and EMBASE were searched from inception to December 2016 using terms that included "renal biopsy", "antiplatelet","aspirin", and "bleeding"...
January 10, 2018: Clinical Nephrology
https://www.readbyqxmd.com/read/29319027/comparison-of-diagnostic-yield-and-safety-profile-of-radial-endobronchial-ultrasound-guided-bronchoscopic-lung-biopsy-with-computed-tomography-guided-percutaneous-needle-biopsy-in-evaluation-of-peripheral-pulmonary-lesions-a-randomized-controlled-trial
#6
Ayush Gupta, Jagdish Chander Suri, Dipak Bhattacharya, Manas Kamal Sen, Shibdas Chakrabarti, Abhijeet Singh, Tulsi Adhikari
BACKGROUND: Peripheral pulmonary lesions (PPLs) pose a diagnostic challenge, and the optimal investigation in many such cases remains unclear. Computed tomography (CT)-guided percutaneous needle biopsy (CT-PNB) has been the modality of choice for such lesions with a high diagnostic accuracy but with high rates of pneumothorax. Endobronchial ultrasound (EBUS) with a radial probe is an alternate diagnostic modality with increased diagnostic yield of bronchoscopy in the evaluation of PPL...
January 2018: Lung India: Official Organ of Indian Chest Society
https://www.readbyqxmd.com/read/29317373/impact-of-an-abbreviated-protocol-for-breast-mri-in-diagnostic-accuracy
#7
Guillaume Oldrini, Imad Derraz, Julia Salleron, Frédéric Marchal, Philippe Henrot
PURPOSE: We aimed to compare the diagnostic accuracy and interpretation time of an abbreviated protocol relative to the complete protocol of breast magnetic resonance imaging (MRI) with the use of breast imaging reporting and data system (BI-RADS). Between-reader and between-protocol variability for BI-RADS classification and influence of reader expertise on diagnostic accuracies were also evaluated. METHODS: We conducted a retrospective reader study in 90 women who underwent breast MRI: 30 benign examinations (graded as American College of Radiology [ACR] 1 or 2), 30 examinations graded as ACR 3 and 30 examinations requiring a histologic proof (graded as ACR 4 or 5)...
January 2018: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/29315567/the-influence-of-capillarization-on-satellite-cell-pool-expansion-and-activation-following-exercise-induced-muscle-damage-in-healthy-young-men
#8
Joshua P Nederveen, Sophie Joanisse, Tim Snijders, Aaron Cq Thomas, Dinesh Kumbhare, Gianni Parise
Factors that determine the skeletal muscle satellite cell (SC) response remain incompletely understood. It is known, however, that SC activation status is closely related to the anatomical relationship between SC and muscle capillaries. We investigated the impact of muscle fibre capillarization on the expansion and activation status of SC following a muscle damaging exercise protocol in healthy young men. Twenty-nine young men (21 ± 0.5 yrs) performed 300 unilateral eccentric contractions (180 deg·s-1 ) of the knee extensors...
January 6, 2018: Journal of Physiology
https://www.readbyqxmd.com/read/29314783/controlling-the-error-on-target-motion-through-real-time-mesh-adaptation-applications-to-deep-brain-stimulation
#9
Huu Phuoc Bui, Satyendra Tomar, Hadrien Courtecuisse, Michel Audette, Stéphane Cotin, Stéphane P A Bordas
An error-controlled mesh refinement procedure for needle insertion simulations is presented. As an example, the procedure is applied for simulations of electrode implantation for Deep Brain Stimulation. We take into account the brain shift phenomena occurring when a craniotomy is performed. We observe that the error in the computation of the displacement and stress fields is localised around the needle tip and the needle shaft during needle insertion simulation. By suitably and adaptively refining the mesh in this region, our approach enables to control, and thus to reduce, the error whilst maintaining a coarser mesh in other parts of the domain...
January 5, 2018: International Journal for Numerical Methods in Biomedical Engineering
https://www.readbyqxmd.com/read/29314236/needle-biopsy-derived-myofascial-tissue-samples-are-sufficient-for-quantification-of-myofibroblast-density
#10
R Schleip, J Wilke, S Schreiner, M Wetterslev, W Klingler
INTRODUCTION: Quantification of myofibroblasts is a promising method for assessing tissue properties in the field of fascia research. This is commonly performed by immunohistochemistry for α-smooth muscle actin. However, usually larger tissue samples sizes are required for quantification. The aim of this investigation was to explore whether a microscopic quantification of myofibroblasts can be conducted with fascial tissue samples derived via percutaneous needle biopsy. MATERIALS AND METHODS: Fascial tissues were derived via percutaneous needle biopsy from the fascia lata of 11 persons (aged 19 to 40 years)...
January 4, 2018: Clinical Anatomy
https://www.readbyqxmd.com/read/29312721/retrospective-review-of-the-diagnosis-and-treatment-of-pulmonary-sequestration-in-28-patients-surgery-or-endovascular-techniques
#11
Shi-Xin Zhang, Hai-Dong Wang, Kang Yang, Wei Cheng, Wei Wu
Background: Pulmonary sequestration (PS) is a rare congenital pulmonary malformation. In this study, we aimed to retrospect and evaluate the diagnosis, treatment, and outcomes of PS in 28 patients at our institute. Methods: The files of 28 patients with PS who were treated with surgery (21 cases) or endovascular intervention (7 cases) between May 2005 and June 2016 from a single institute were retrospectively reviewed. The following data of all patients were analyzed: age, sex, clinical symptoms, diagnostic methods, operative techniques, and treatment outcomes...
December 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29305935/hedgehog-yap-signaling-pathway-regulates-glutaminolysis-to-control-hepatic-stellate-cell-activation
#12
Kuo Du, Jeongeun Hyun, Richard T Premont, Steve S Choi, Gregory A Michelotti, Marzena Swiderska-Syn, George D Dalton, Eric Thelen, Bahar Salimian Rizi, Youngmi Jung, Anna Mae Diehl
BACKGROUND & AIMS: Cirrhosis results from accumulation of myofibroblasts derived from quiescent hepatic stellate cells (Q-HSCs); it regresses when myofibroblastic HSCs are depleted. Hedgehog signaling promotes transdifferentiation of HSCs by activating Yes-associated protein 1 (YAP1 or YAP) and inducing aerobic glycolysis. However, increased aerobic glycolysis alone cannot meet the high metabolic demands of myofibroblastic HSCs. Determining the metabolic processes of these cells could lead to strategies to prevent progressive liver fibrosis, so we investigated whether glutaminolysis (conversion of glutamine to alpha-ketoglutarate) sustains energy metabolism and permits anabolism when Q-HSCs become myofibroblastic, and whether this is controlled by hedgehog signaling to YAP...
January 3, 2018: Gastroenterology
https://www.readbyqxmd.com/read/29305201/initial-assessment-of-the-efficacy-of-irreversible-electroporation-ire-in-the-focal-treatment-of-localised-renal-cell-carcinoma-rcc-with-delayed-interval-kidney-tumour-resection-irene-trial-an-ablate-and-resect-pilot-study
#13
Johann J Wendler, Maciej Pech, Frank Fischbach, Julian Jürgens, Björn Friebe, Daniel Baumunk, Markus Porsch, Simon Blaschke, Daniel Schindele, Sandra Siedentopf, Jens Ricke, Martin Schostak, Jens Köllermann, Uwe B Liehr
OBJECTIVES: To assess the efficacy of irreversible electroporation (IRE) ablation of pT1a renal-cell carcinoma (RCC) in the first prospective, monocentric Phase 2a pilot ablate-and-resect study (IRENE trial). It has been postulated that focal IRE can bring about complete ablation of soft-tissue tumours with protection of healthy peritumoral tissue and anatomical structures. METHODS: The first seven study patients, with biopsy-proven pT1a RCC (15-39mm) underwent IRE...
January 2, 2018: Urology
https://www.readbyqxmd.com/read/29299514/percutaneous-gastrostomy-site-metastasis-from-head-and-neck-tumors-a-single-institution-case-series
#14
James S Metkus, David Cognetti, Joseph Curry
Objectives: Head and neck cancer (HNC) patients often require percutaneous gastrostomy (PEG) tube placement due to malnutrition and dysphagia. While beneficial, PEG tube placement can cause a rare but reportable complication of metastasis of the original tumor to the gastrostomy exit site. The objectives of this case series were to present HNC patients at a single institution that developed PEG tube metastases, their subsequent treatment, and review of the literature for similar cases...
December 2017: Laryngoscope Investigative Otolaryngology
https://www.readbyqxmd.com/read/29299351/a-phase-2-trial-of-personalized-cytotoxic-therapy-based-on-tumor-immunohistochemistry-in-previously-treated-metastatic-pancreatic-cancer-patients
#15
Ramesh K Ramanathan, Glen J Weiss, Richard G Posner, N V Rajeshkumar, Gayle Jameson, Meraj Aziz, Antje Hoering, Vanessa Bolejack, Anirban Maitra, Monica Fulk, Edward C Stites, William S Hlavacek, Zoran Gatalica, Joanne Xiu, Manuel Hidalgo, Daniel D Von Hoff, Michael T Barrett
Background: The choice of a regimen in metastatic pancreatic cancer patients following progression on 1st line therapy is empiric and outcomes are unsatisfactory. This phase II study was performed to evaluate the efficacy of therapy selected by immunohistochemistry (IHC) in these patients following progression after one or more therapies. Methods: Eligible patients underwent a percutaneous biopsy of a metastatic lesion and treatment selection was determined by IHC...
December 2017: Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/29299093/systemic-air-embolism-after-percutaneous-lung-biopsy-a-manageable-complication
#16
Lucas Fiore, Nathan Elie Frenk, Guilherme Lopes Pinheiro Martins, Publio Cesar Cavalcante Viana, Marcos Roberto de Menezes
CT-guided percutaneous biopsy is a resourceful and widely used tool to evaluate pulmonary nodules that frequently avoids costly and unnecessary surgeries. Severe complications occur in less than 1% of cases and include gas embolism, which is rarely documented. We report a case of gas embolism after transthoracic biopsies and discuss the pathophysiology and the benefits of early diagnosis and proper management.
June 2017: Journal of Radiology Case Reports
https://www.readbyqxmd.com/read/29288237/genomics-driven-precision-medicine-for-advanced-pancreatic-cancer-early-results-from-the-compass-trial
#17
Kyaw Lwin Aung, Sandra E Fischer, Robert E Denroche, Gun-Ho Jang, Anna Dodd, Sean Creighton, Bernadette Southwood, Sheng-Ben Liang, Dianne Chadwick, Amy Zhang, Grainne M O'Kane, Hamzeh Adel Amin Albaba, Shari Moura, Robert C Grant, Jessica K Miller, Faridah Mbabaali, Danielle Pasternack, Ilinca M Lungu, John M S Bartlett, Sangeet Ghai, Mathieu Lemire, Spring Holter, Ashton A Connor, Richard A Moffitt, Jen Jen Yeh, Lee Timms, Paul M Krzyzanowski, Neesha C Dhani, David W Hedley, Faiyaz Notta, Julie M Wilson, Malcolm J Moore, Steven Gallinger, Jennifer J Knox
PURPOSE: To perform real time whole genome sequencing (WGS) and RNA sequencing (RNASeq) of advanced pancreatic ductal adenocarcinoma (PDAC) to identify predictive mutational and transcriptional features for better treatment selection.  Experimental Design: Patients with advanced PDAC were prospectively recruited prior to first-line combination chemotherapy. Fresh tumor tissue was acquired by image guided percutaneous core biopsy for WGS and RNASeq. Laser capture microdissection was performed for all cases...
December 29, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29285688/pancreatoblastoma-an-unusual-diagnosis-in-an-adult-patient
#18
Gonçalo Nunes, Hélder Coelho, Marta Patita, Rita Barosa, Pedro Pinto Marques, Lídia Roque Ramos, Maria José Brito, Aurora Tomaz, Jorge Fonseca
The authors describe a 31-year-old man admitted due to progressive weight loss, diarrhea and massive hepatomegaly. Laboratory data showed anemia (haemoglobin 11.7 g/dl), abnormal liver tests (total bilirubin 1.4 g/dl, aspartate aminotransferase 70 U/l, alanine aminotransferase 37 U/l and alkaline phosphatase 520 U/l). Abdominal ultrasound (US) displayed a large heterogeneous liver with a segment IV 25 mm nodule. Magnetic resonance revealed a 4 cm pancreatic tail mass and several liver nodules consistent with metastasis...
December 28, 2017: Clinical Journal of Gastroenterology
https://www.readbyqxmd.com/read/29281680/characteristics-of-percutaneous-core-biopsies-adequate-for-next-generation-genomic-sequencing
#19
Sharjeel H Sabir, Savitri Krishnamurthy, Sanjay Gupta, Gordon B Mills, Wei Wei, Andrea C Cortes, Kenna R Mills Shaw, Rajyalakshmi Luthra, Michael J Wallace
PURPOSE: Determine the characteristics of percutaneous core biopsies that are adequate for a next generation sequencing (NGS) genomic panel. MATERIALS AND METHODS: All patients undergoing percutaneous core biopsies in interventional radiology (IR) with samples evaluated for a 46-gene NGS panel during 1-year were included in this retrospective study. Patient and procedure variables were collected. An imaging-based likelihood of adequacy score incorporating targeting and sampling factors was assigned to each biopsied lesion...
2017: PloS One
https://www.readbyqxmd.com/read/29251269/ii-brazilian-consensus-statement-on-endoscopic-ultrasonography
#20
Fauze Maluf-Filho, Joel Fernandez de Oliveira, Ernesto Quaresma Mendonça, Augusto Carbonari, Bruno Antônio Maciente, Bruno Chaves Salomão, Bruno Frederico Medrado, Carlos Marcelo Dotti, César Vivian Lopes, Cláudia Utsch Braga, Daniel Alencar M Dutra, Felipe Retes, Frank Nakao, Giovana Biasia de Sousa, Gustavo Andrade de Paulo, Jose Celso Ardengh, Juliana Bonfim Dos Santos, Luciana Moura Sampaio, Luciano Okawa, Lucio Rossini, Manoel Carlos de Brito Cardoso, Marco Antonio Ribeiro Camunha, Marcos Clarêncio, Marcos Eduardo Lera Dos Santos, Matheus Franco, Nutianne Camargo Schneider, Ramiro Mascarenhas, Rodrigo Roda, Sérgio Matuguma, Simone Guaraldi, Viviane Figueiredo
BACKGROUND AND OBJECTIVES: At the time of its introduction in the early 80s, endoscopic ultrasonography (EUS) was indicated for diagnostic purposes. Recently, EUS has been employed to assist or to be the main platform of complex therapeutic interventions. METHODS: From a series of relevant new topics in the literature and based on the need to complement the I Brazilian consensus on EUS, twenty experienced endosonographers identified and reviewed the pertinent literature in databases...
November 2017: Endoscopic Ultrasound
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