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https://www.readbyqxmd.com/read/28230009/effect-of-heat-sink-on-the-recurrence-of-small-malignant-hepatic-tumors-after-radiofrequency-ablation
#1
Zheng-Yu Lin, Guo-Lin Li, Jin Chen, Zhong-Wu Chen, Yi-Ping Chen, Sun-Zhi Lin
AIMS: The aim of this study was to investigate the effect of heat sink on the recurrence of hepatic malignant tumors <3 cm after percutaneous radiofrequency ablation (RFA). SUBJECTS AND METHODS: This study included 564 hepatic malignant tumors <3 cm in 381 patients. Preoperative images were used to determine whether these tumors were adjacent to vessels, and the diameter of adjacent vessels was measured. RFA was performed computed tomography (CT), magnetic resonance imaging (MRI) and ultrasound (US) guidance, and postoperative imaging follow-up was then conducted...
December 2016: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28223114/imaging-utilization-for-the-diagnosis-of-appendicitis-in-stand-alone-children-s-hospitals%C3%A2-in%C3%A2-the-united-states-trends-and-costs
#2
Hansel J Otero, Lauren Crowder
OBJECTIVE: To describe the imaging utilization patterns for the diagnosis of appendicitis among children's hospitals in the United States over the last 10 years (2005-2014). METHODS: All patients with a primary discharge diagnosis of appendicitis included in a large administrative database of 45 pediatric institutions in the United States between 2005 and 2014 were selected. Demographics, imaging utilization, and costs were described. RESULTS: In all, 96,786 children with appendicitis (59% boys, 41% girls; mean age: 9...
February 10, 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/28221151/-techniques-for-percutaneous-access-during-percutaneous-nephrolithotomy
#3
Daniel Pérez-Fentes
The creation of the access is one of the main steps in percutaneous nephrolithotomy, the most complicated for many urologists and the one that limited most the universalization of the technique. From a purely technical point of view, it includes puncture of the excretory tract and dilatation of the percutaneous tract to end with the introduction of an Amplatz type working sheath. The objective of the puncture is to try to access the excretory system through the renal papilla, minimizing the risk of bleeding...
January 2017: Archivos Españoles de Urología
https://www.readbyqxmd.com/read/28217237/-caught-by-the-eye-of-sound-epigastric-swelling-due-to-xiphisternal-tuberculosis
#4
Shabnam Bhandari Grover, Sumit Arora, Amit Kumar, Hemal Grover, Amit Katyan, Deepthi Mohan Nair
BACKGROUND: Common causes of an epigastric mass include hepatomegaly, pancreatic pseudocyst and epigastric hernia, less common causes being carcinoma of the stomach or pancreas, whereas diseases of the sternum presenting as an epigastric swelling is extremely uncommon. We report a case of tubercular infection of the sternum located in the xiphoid process resulting in its presentation as an epigastric swelling. CASE REPORT: A 30-year-old immunocompetent woman with complaints of an epigastric swelling and undocumented pyrexia for four months was referred for sonographic evaluation with a clinical suspicion of an incompletely treated liver abscess...
2017: Polish Journal of Radiology
https://www.readbyqxmd.com/read/28214369/diagnostic-accuracy-of-history-physical-exam-laboratory-tests-and-point-of-care-ultrasound-for-pediatric-acute-appendicitis-in-the-emergency-department-a-systematic-review-and-meta-analysis
#5
Roshanak Benabbas, Mark Hanna, Jay Shah, Richard Sinert
BACKGROUND: Acute appendicitis (AA) is the most common surgical emergency in children. Accurate and timely diagnosis is crucial but challenging due to atypical presentations and the inherent difficulty of obtaining a reliable history and physical examination in younger children. OBJECTIVES: To determine the utility of history, physical exam, laboratory tests, Pediatric Appendicitis Score (PAS) and Emergency Department-Point-of-Care Ultrasound (ED-POCUS) in the diagnosis of AA in ED pediatric patients...
February 18, 2017: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
https://www.readbyqxmd.com/read/28209559/irreversible-electroporation-for-the-ablation-of-renal-cell-carcinoma-a-prospective-human-in-vivo-study-protocol-ideal-phase-2b
#6
Mara Buijs, Krijn P van Lienden, Peter Gk Wagstaff, Matthijs Jv Scheltema, Daniel M de Bruin, Patricia J Zondervan, Otto M van Delden, Ton G van Leeuwen, Jean Jmch de la Rosette, M Pilar Laguna
BACKGROUND: Irreversible electroporation (IRE) is an emerging technique delivering electrical pulses to ablate tissue, with the theoretical advantage to overcome the main shortcomings of conventional thermal ablation. Recent short-term research showed that IRE for the ablation of renal masses is a safe and feasible treatment option. In an ablate and resect design, histopathological analysis 4 weeks after radical nephrectomy demonstrated that IRE-targeted renal tumors were completely covered by ablation zone...
February 16, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/28207968/mri-vs-ultrasound-as-the-initial-imaging-modality-for-pediatric-and-young-adult-patients-with-suspected-appendicitis
#7
Daniel Imler, Christine Keller, Shyam Sivasankar, Nancy Ewen Wang, Shreyas Vasanawala, Matias Bruzoni, James Quinn
BACKGROUND: While ultrasound (US), given its lack of ionizing radiation is currently the recommended initial imaging study of choice for the diagnosis of appendicitis in pediatric and young adult patients, it does have significant shortcomings. US is time intensive, operator dependent, and results in frequent inconclusive studies, thus necessitating further imaging, and admission for observation or repeat clinical visits. A rapid focused Magnetic Resonance Imaging (MRI) for appendicitis has been shown to have definitive sensitivity and specificity, similar to Computed tomography (CT) but without radiation and offers a potential alternative to US...
February 16, 2017: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
https://www.readbyqxmd.com/read/28187994/defining-the-value-of-magnetic-resonance-imaging-in-prostate-brachytherapy-using-time-driven-activity-based-costing
#8
Nikhil G Thaker, Peter F Orio, Louis Potters
Magnetic resonance imaging (MRI) simulation and planning for prostate brachytherapy (PBT) may deliver potential clinical benefits but at an unknown cost to the provider and healthcare system. Time-driven activity-based costing (TDABC) is an innovative bottom-up costing tool in healthcare that can be used to measure the actual consumption of resources required over the full cycle of care. TDABC analysis was conducted to compare patient-level costs for an MRI-based versus traditional PBT workflow. TDABC cost was only 1% higher for the MRI-based workflow, and utilization of MRI allowed for cost shifting from other imaging modalities, such as CT and ultrasound, to MRI during the PBT process...
February 7, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28170371/imaging-tests-in-staging-and-surveillance-of-non-metastatic-breast-cancer-changes-in-routine-clinical-practice-and-cost-implications
#9
S De Placido, C De Angelis, M Giuliano, C Pizzi, R Ruocco, V Perrone, D Bruzzese, G Tommasielli, M De Laurentiis, S Cammarota, G Arpino, G Arpino
BACKGROUND: Although guidelines do not recommend computerised tomography (CT), positron emission tomography (PET) or magnetic resonance imaging (MRI) for the staging or follow-up of asymptomatic patients with non-metastatic breast cancer, they are often requested in routine clinical practice. The aim of this study was to determine the staging and follow-up patterns, and relative costs in a large population of breast cancer patients living and treated in a Southern Italian region. METHODS: We analysed the clinical computerised information recorded by 567 primary-care physicians assisting about 650 000 inhabitants in the Campania region...
February 7, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28168804/review-of-axillary-lesions-emphasising-some-distinctive-imaging-and-pathology-findings
#10
REVIEW
Amber Gupta, Cecily Metcalf, Donna Taylor
The axilla is often included on mammography, ultrasound (US), CT and MRI. Axillary masses can arise from any of the tissue components present in this region including breast parenchyma. Aetiologies include: lymphadenopathy due to inflammation, malignancy and degenerative causes; soft tissue tumours such as haemangioma, lymphangioma, peripheral nerve sheath tumours and lipomas; post-surgical complications such as seroma, lymphocoele and haematoma; lesions arising in accessory breast tissue such as fibroadenoma and carcinoma...
February 7, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28166142/detection-and-viability-of-colorectal-liver-metastases-after-neoadjuvant-chemotherapy-a-multiparametric-pet-ct-mri-study
#11
Vincent Dunet, Nermin Halkic, John O Prior, Anass Anaye, Reto A Meuli, Christine Sempoux, Alban Denys, Sabine Schmidt
PURPOSE: The aim of this study was to compare combined gadolinium-ethoxybenzyl-diethylenetriamine-pentaacetic acid (Gd-EOB-DTPA)-enhanced and diffusion-weighted (DW) MRI with IV contrast-enhanced F-FDG PET/CT to detect and assess the viability of colorectal liver metastases (CLMs) after neoadjuvant chemotherapy (NAC). PATIENTS AND METHODS: After NAC, 45 patients with CLMs were prospectively enrolled and underwent combined Gd-EOB-DTPA-enhanced and DW-MRI and contrast-enhanced F-FDG PET/CT...
February 3, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28157745/diagnosis-and-management-of-transient-ischemic-attack
#12
Shelagh B Coutts
PURPOSE OF REVIEW: This article reviews the diagnosis, investigation, and recommended management after a transient ischemic attack (TIA) and discusses how to make an accurate diagnosis, including the diagnosis of mimics of TIAs. RECENT FINDINGS: Up to a 10% risk of recurrent stroke exists after a TIA, and up to 80% of this risk is preventable with urgent assessment and treatment. Imaging of the brain and intracranial and extracranial blood vessels using CT, CT angiography, carotid Doppler ultrasound, and MRI is an important part of the diagnostic assessment...
February 2017: Continuum: Lifelong Learning in Neurology
https://www.readbyqxmd.com/read/28147365/measurement-of-fibrosis-in-crohn-s-disease-strictures-with-imaging-and-blood-biomarkers-to-inform-clinical-decisions
#13
REVIEW
Peter D R Higgins
BACKGROUND: Distinguishing fibrosis from inflammation in an intestinal stricture in Crohn's disease is quite difficult. The absence of signs of inflammation on CT or MRI does not prove the absence of inflammation, as most strictures have a mix of fibrosis and inflammation. Identifying refractory fibrosis and distinguishing the patients who will respond to anti-inflammatory therapy from those who will require surgery are important clinical requirements, and several new technologies in imaging and serum biomarkers are being applied to this problem...
2017: Digestive Diseases
https://www.readbyqxmd.com/read/28144721/focal-fat-deposition-in-the-liver-diagnostic-challenges-on-imaging
#14
REVIEW
Jong Keon Jang, Hyun-Jung Jang, Jin Sil Kim, Tae Kyoung Kim
While focal fat deposition in the liver mostly occurs in typical locations related to non-portal venous supply, unusual patterns of focal fat deposition, including multi-nodular, mass-like, and perivascular patterns, mimic malignancies and cause diagnostic challenges. Patients with unusual focal fat deposition often have potential underlying etiologies such as diabetes, alcohol abuse, metabolic disease, or various medications/chemotherapy. Some cases can be explained by non-portal venous supply or ischemia...
February 1, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28137404/relevant-aspects-of-imaging-in-the-diagnosis-and-management-of-gout
#15
Eloy De Avila Fernandes, Samuel Brighenti Bergamaschi, Tatiane Cantarelli Rodrigues, Gustavo Coelho Dias, Ralff Malmann, Germano Martins Ramos, Soraya Silveira Monteiro
Gout is an inflammatory arthritis characterized by the deposition of monosodium urate crystals in the synovial membrane, articular cartilage and periarticular tissues leading to inflammation. Men are more commonly affected, mainly after the 5th decade of life. Its incidence has been growing with the population aging. In the majority of the cases, the diagnosis is made by clinical criteria and synovial fluid analysis, in search for monosodium urate crystals. Nonetheless, gout may sometimes have atypical presentations, complicating the diagnosis...
January 2017: Revista Brasileira de Reumatologia
https://www.readbyqxmd.com/read/28127678/gallbladder-adenomyomatosis-imaging-findings-tricks-and-pitfalls
#16
REVIEW
Matteo Bonatti, Norberto Vezzali, Fabio Lombardo, Federica Ferro, Giulia Zamboni, Martina Tauber, Giampietro Bonatti
: Gallbladder adenomyomatosis (GA) is a benign alteration of the gallbladder wall that can be found in up to 9% of patients. GA is characterized by a gallbladder wall thickening containing small bile-filled cystic spaces (i.e., the Rokitansky-Aschoff sinuses, RAS). The bile contained in RAS may undergo a progressive concentration process leading to crystal precipitation and calcification development. A correct characterization of GA is fundamental in order to avoid unnecessary cholecystectomies...
January 26, 2017: Insights Into Imaging
https://www.readbyqxmd.com/read/28123971/advanced-imaging-in-acute-and-chronic-deep-vein-thrombosis
#17
REVIEW
Gita Yashwantrao Karande, Sandeep S Hedgire, Yadiel Sanchez, Vinit Baliyan, Vishala Mishra, Suvranu Ganguli, Anand M Prabhakar
Deep venous thrombosis (DVT) affecting the extremities is a common clinical problem. Prompt imaging aids in rapid diagnosis and adequate treatment. While ultrasound (US) remains the workhorse of detection of extremity venous thrombosis, CT and MRI are commonly used as the problem-solving tools either to visualize the thrombosis in central veins like superior or inferior vena cava (IVC) or to test for the presence of complications like pulmonary embolism (PE). The cross-sectional modalities also offer improved visualization of venous collaterals...
December 2016: Cardiovascular Diagnosis and Therapy
https://www.readbyqxmd.com/read/28118551/the-utility-of-in-office-ultrasound-in-the-diagnosis-of-parotid-lesions
#18
Yarah M Haidar, Omid Moshtaghi, Amin Mahmoodi, Mohammad Helmy, Julie A Goddard, William B Armstrong
Objective To determine whether the use of in-office ultrasound (US) by a head and neck surgeon is a useful adjunct to clinical assessment of parotid lesions and decrease the need of additional imaging, such as magnetic resonance imaging (MRI) or computed tomography (CT). Study Design Case series with chart review. Setting Tertiary care academic center. Subjects Seventy patients presenting with a parotid lesion who obtained an in-office US and ultrasound-guided fine-needle aspiration (USGFNA) from a head and neck surgeon from 2006 to 2015...
January 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28116271/intraosseous-lipoma-of-the-proximal-radius-with-extra-osseous-extension-leading-to-posterior-interosseous-nerve-compression-hrus-diagnosis
#19
S Narayan, V Verma Ahluwalia, P Singh Saharan, A Kumar Gupta
INTRODUCTION: Benign musculoskeletal lipomatous lesions are common in both soft tissue and bone. Imaging features of benign lipomatous lesions are often pathognomonic. Ultrasound (US) has been used to examine both soft tissue and bone tumors, allowing targeted CT or MRI examination of the region of interest. CASE REPORT: A 46-year-old female presented with a four year history of palpable mass lesion just below the lateral aspect of right elbow with clinical evidence of posterior interosseous nerve compression...
July 2016: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28115952/salvage-high-dose-rate-brachytherapy-for-histologically-confirmed-macroscopic-local-relapsed-prostate-cancer-after-radical-prostatectomy
#20
David Buchser, Alfonso Gomez-Iturriaga, J Ignacio Rodriguez Melcon, Francisco Casquero, Roberto Llarena, Jon Cacicedo, Pedro Bilbao
PURPOSE: To evaluate the feasibility of the use of real-time magnetic resonance imaging (MRI)-transrectal ultrasound (TRUS) fusion guided high-dose-rate brachytherapy (HDR-BT) +/- external beam radiation therapy (EBRT) in patients with histologically-proven local relapse after radical prostatectomy. MATERIAL AND METHODS: We retrospectively reviewed 13 patients treated with real-time MRI-TRUS fusion HDR-BT for a local relapse of prostate cancer after radical surgery...
December 2016: Journal of Contemporary Brachytherapy
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