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https://www.readbyqxmd.com/read/27903081/percutaneous-microwave-ablation-of-renal-cell-carcinoma-is-safe-in-patients-with-renal-dysfunction
#1
Yan Lin, Ping Liang, Xiao-Ling Yu, Jie Yu, Zhi-Gang Cheng, Zhi-Yu Han, Fangyi Liu
OBJECTIVES: To present the clinical effect of microwave ablation(MWA) on renal cell carcinoma(RCC) of the patients with renal dysfunction, mainly focusing on the extent of renal tumor control and damage to the residual kidney function. METHODS AND MATERIALS: From 2006 to 2014, 19 tumors of 18 patients with renal dysfunction underwent percutaneous ultrasound-guided MWA in our institution. The tumor diameters range from 1.9 to 5.0cm. The serum creatinine and urea levels of each patient pre-MWA, 1 day after MWA and the most recent occasion on record at our institution were collected...
November 30, 2016: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/27895878/evaluation-of-visibility-of-foreign-bodies-in-the-maxillofacial-region-comparison-of-computed-tomography-cone-beam-computed-tomography-ultrasound-and-magnetic-resonance-imaging
#2
Solmaz Valizadeh, Hamidreza Pouraliakbar, Leila Kiani, Yaser Safi, Leila Alibakhshi
BACKGROUND: Detection of foreign bodies (FBs) is challenging. Selection of a fast and affordable imaging modality to locate the FB with minimal patient radiation dose is imperative. OBJECTIVES: This study sought to compare four commonly used imaging modalities namely cone beam computed tomography (CBCT), magnetic resonance imaging (MRI), computed tomography (CT), and ultrasound (US) for detection of FBs in the head and neck region. MATERIALS AND METHODS: In this in vitro study, iron, glass, stone, wood, asphalt, and tooth samples measuring 0...
October 2016: Iranian Journal of Radiology: a Quarterly Journal Published By the Iranian Radiological Society
https://www.readbyqxmd.com/read/27886003/mri-and-contrast-enhanced-ultrasound-ceus-image-fusion-of-renal-cysts
#3
J Rübenthaler, K J Paprottka, J Marcon, M Reiser, D A Clevert
Ultrasound is a common and established imaging method for the initial characterization of renal lesions. The widespread used Bosniak classification (I-IV) classifies renal lesions in five individual groups using contrast-enhanced computer tomography (CE-CT), magnetic resonance imaging (MRI) and/or contrast-enhanced ultrasound (CEUS) imaging criteria. For complex pathologies, CEUS/MRI image fusion is a novel imaging technique for the differentiation of benign and malignant renal lesions. Compared to CE-CT and MRI alone, ultrasound image fusion offers the additional possibility of being a real-time imaging technique that can be used together with other cross-sectional imaging techniques...
November 23, 2016: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/27884633/recent-trends-in-imaging-use-in-hospital-settings-implications-for-future-planning
#4
David C Levin, Laurence Parker, Vijay M Rao
PURPOSE: To compare trends in utilization rates of imaging in the three hospital-based settings where imaging is conducted. METHODS: The nationwide Medicare Part B databases for 2004-2014 were used. All discretionary noninvasive diagnostic imaging (NDI) CPT codes were selected and grouped by modality. Procedure volumes of each code were available from the databases and converted to utilization rates per 1,000 Medicare enrollees. Medicare's place-of-service codes were used to identify imaging examinations done in hospital inpatients, hospital outpatient departments (HOPDs), and emergency departments (EDs)...
November 21, 2016: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/27875009/3d-printing-from-mri-data-harnessing-strengths-and-minimizing-weaknesses
#5
Beth Ripley, Dmitry Levin, Tatiana Kelil, Joshua L Hermsen, Sooah Kim, Jeffrey H Maki, Gregory J Wilson
: 3D printing facilitates the creation of accurate physical models of patient-specific anatomy from medical imaging datasets. While the majority of models to date are created from computed tomography (CT) data, there is increasing interest in creating models from other datasets, such as ultrasound and magnetic resonance imaging (MRI). MRI, in particular, holds great potential for 3D printing, given its excellent tissue characterization and lack of ionizing radiation. There are, however, challenges to 3D printing from MRI data as well...
November 22, 2016: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/27866871/endoscopic-ultrasound-of-pancreatic-tumors
#6
M Wangermez
Computed tomography (CT) and endoscopic ultrasound (EUS) are the two most effective techniques for the assessment of pancreatic cancers. CT has revolutionized the field of tumor imaging in pancreatic cancer and is now a well-established imaging technique for diagnosis and staging. However, EUS still plays an important role in several situations, especially when the diagnosis is uncertain or when histopathological confirmation of the lesion is needed. Similarly, regarding cystic lesions, magnetic resonance imaging and CT have very good performances but are often inadequate because the diagnosis can be difficult to establish, while the consequences for the patient are major...
December 2016: Diagnostic and Interventional Imaging
https://www.readbyqxmd.com/read/27865126/crossing-the-canal-looking-beyond-hernias-spectrum-of-common-uncommon-and-atypical-pathologies-in-the-inguinal-canal
#7
REVIEW
Subramaniyan Ramanathan, Yegu Palaniappan, Adnan Sheikh, John Ryan, Ania Kielar
Inguinal canal can have diverse range of pathologies due to its complex anatomy and multiple different contents in the males and females. Imaging plays a dominant role in the appropriate diagnosis and management as inguinal pathologies have fairly similar clinical presentation with pain and swelling. Various pathologies in the inguinal region include congenital, infectious/inflammatory, vascular, neoplastic and iatrogenic. This paper gives an overview of the role of various modalities like Ultrasound, CT and MRI in the evaluation of inguinal pathologies...
November 5, 2016: Clinical Imaging
https://www.readbyqxmd.com/read/27858916/evaluating-rectal-tumor-staging-with-magnetic-resonance-imaging-computed-tomography-and-endoluminal-ultrasound-a-meta-analysis
#8
Xiao-Ting Li, Xiao-Yan Zhang, Ying-Shi Sun, Lei Tang, Kun Cao
BACKGROUND: Magnetic resonance imaging (MRI), endoluminal ultrasound (EUS), and computed tomography (CT) are commonly used imaging tools to evaluate rectal tumor staging, but there was no recent meta-analysis to define the present role of the 3 tools. Here, we proposed to systematically compare the accuracy of the 3 imaging tools for rectal tumor staging. METHODS: We systematically searched diagnostic accuracy studies of MRI, CT, or EUS on rectal cancer staging, written in English or Chinese, published between January 1, 2003 and Dec 31, 2015 from database of PubMed, EMBASE, and Cochrane Library...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27858365/tumor-blood-vessel-visualization
#9
Clarissa Gillmann, Tobias Bäuerle
Noninvasive multimodal imaging of tumor blood vessels allows the qualitative and quantitative assessment of morphological, functional, and molecular features of tumor angiogenesis longitudinally in a living organism. In this chapter we focus on the application of magnetic resonance imaging (MRI), computed tomography (CT), ultrasound (US), and positron emission tomography (PET) in tumor blood vessel visualization on the example of breast cancer bone metastasis in a nude rat model. Thereby, materials and methods are described that are needed to obtain complementary data on tumor vascularization from these imaging techniques...
2016: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27858233/utility-of-contemporaneous-dual-read-in-the-setting-of-emergency-teleradiology-reporting
#10
Anjali Agrawal, D B Koundinya, Jayadeepa Srinivas Raju, Anurag Agrawal, Arjun Kalyanpur
PURPOSE: Emergency radiology requires rapid and accurate interpretation of imaging examinations. Missed findings may lead to adverse outcomes. Double reporting may be used to minimize errors. Limited contemporaneous double reporting may be most efficient and cost-effective, but no data exists. This study is intended to examine the benefits of double reading and identify examinations where this would be most useful. METHODS: In this study, dual reporting was conducted in a parallel reading environment in a teleradiology practice for 3779 radiological procedures performed at two radiology centers in the USA over a period of 4 months...
November 18, 2016: Emergency Radiology
https://www.readbyqxmd.com/read/27843693/treatment-and-imaging-of-intracranial-atherosclerotic-stenosis-current-perspectives-and-future-directions
#11
REVIEW
Ido R van den Wijngaard, Ghislaine Holswilder, Marianne A A van Walderveen, Ale Algra, Marieke J H Wermer, Osama O Zaidat, Jelis Boiten
BACKGROUND AND PURPOSE: Intracranial atherosclerosis is a common cause of stroke worldwide. It results in ischemic stroke due to different mechanisms including artery-to-artery embolism, in situ thrombo-occlusion, occlusion of perforating arteries, and hemodynamic failure. In this review, we present an overview of current treatment and imaging modalities in intracranial atherosclerotic stenosis. METHODS: PubMed was searched for relevant articles in English that evaluated the treatment and imaging of intracranial atherosclerotic stenosis (ICAS)...
November 2016: Brain and Behavior
https://www.readbyqxmd.com/read/27843428/a-rare-case-of-gastric-variceal-hemorrhage-secondary-to-infiltrative-b-cell-lymphoma
#12
Adrienne Lenhart, Juan Fernandez-Castillo, Keith Mullins, Reena Salgia
Portal hypertension commonly arises in the setting of advanced liver cirrhosis and is the consequence of increased resistance within the portal vasculature. Less commonly, left-sided noncirrhotic portal hypertension can develop in a patient secondary to isolated obstruction of the splenic vein. We present a rare case of left-sided portal hypertension and isolated gastric varices in a patient with large B-cell lymphoma, who was treated with splenic artery embolization. The patient is a 73-year-old male with no previous history of liver disease, who presented with coffee ground emesis and melena...
September 2016: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/27825433/advancement-of-mr-and-pet-mr-in-prostate-cancer
#13
REVIEW
Liza Lindenberg, Mark Ahlman, Baris Turkbey, Esther Mena, Peter Choyke
Multiparametric magnetic resonance (mpMRI) imaging has assumed a larger role in the diagnosis and management of prostate cancer. The current method of detecting prostate cancer relies on blind systematic biopsy, guided only by transrectal ultrasound that generally directs the needle biopsy to sextants of the prostate rather than specific lesions. MpMRI is playing an increasing role in the detection of primary cancer as it can visualize cancers and direct biopsies. However, even mpMRI is inherently nonspecific and numerous biopsies performed under MR guidance prove to be negative...
November 2016: Seminars in Nuclear Medicine
https://www.readbyqxmd.com/read/27818540/applicability-of-three-dimensional-imaging-techniques-in-fetal-medicine
#14
Heron Werner Júnior, Jorge Lopes Dos Santos, Simone Belmonte, Gerson Ribeiro, Pedro Daltro, Emerson Leandro Gasparetto, Edson Marchiori
OBJECTIVE: To generate physical models of fetuses from images obtained with three-dimensional ultrasound (3D-US), magnetic resonance imaging (MRI), and, occasionally, computed tomography (CT), in order to guide additive manufacturing technology. MATERIALS AND METHODS: We used 3D-US images of 31 pregnant women, including 5 who were carrying twins. If abnormalities were detected by 3D-US, both MRI and in some cases CT scans were then immediately performed. The images were then exported to a workstation in DICOM format...
September 2016: Radiologia Brasileira
https://www.readbyqxmd.com/read/27815615/ultrasound-computed-tomography-or-magnetic-resonance-imaging-which-is-preferred-for-acute-appendicitis-in-children-a-meta-analysis
#15
Hanfei Zhang, Meiyan Liao, Jie Chen, Dongyong Zhu, Sama Byanju
BACKGROUND: There is no established consensus about the relative accuracies of US, CT and MRI in childhood appendicitis. OBJECTIVE: To compare, through meta-analysis, the accuracies of US, CT and MRI for clinically suspected acute appendicitis in children. MATERIALS AND METHODS: PubMed, Embase, Web of Science and the Cochrane Library were searched. After study selection, data extraction and quality assessment, the sensitivity, specificity and the area under the curve of summary receiver operating characteristic were calculated and compared...
November 4, 2016: Pediatric Radiology
https://www.readbyqxmd.com/read/27814833/acr-appropriateness-criteria-imaging-after-shoulder-arthroplasty
#16
Soterios Gyftopoulos, Zehava S Rosenberg, Catherine C Roberts, Jenny T Bencardino, Marc Appel, Steven J Baccei, R Carter Cassidy, Eric Y Chang, Michael G Fox, Bennett S Greenspan, Mary G Hochman, Jon A Jacobson, Douglas N Mintz, Joel S Newman, Nehal A Shah, Kirstin M Small, Barbara N Weissman
There has been a rapid increase in the number of shoulder arthroplasties, including partial or complete humeral head resurfacing, hemiarthroplasty, total shoulder arthroplasty, and reverse total shoulder arthroplasty, performed in the United States over the past two decades. Imaging can play an important role in diagnosing the complications that can occur in the setting of these shoulder arthroplasties. This review is divided into two parts. The first part provides a general discussion of various imaging modalities, comprising radiography, CT, MRI, ultrasound, and nuclear medicine, and their role in providing useful, treatment-guiding information...
November 2016: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/27814824/acr-appropriateness-criteria-%C3%A2-stage-i-breast-carcinoma
#17
Phan Tuong Huynh, Sergy V Lemeshko, Mary C Mahoney, Mary S Newell, Lisa Bailey, Lora D Barke, Carl D'Orsi, Jennifer A Harvey, Mary K Hayes, Peter M Jokich, Su-Ju Lee, Constance D Lehman, Martha B Mainiero, David A Mankoff, Samir B Patel, Handel E Reynolds, M Linda Sutherland, Bruce G Haffty
Stage I breast carcinoma is classified when an invasive breast carcinoma is ≤2 cm in diameter (T1), with no regional (axillary) lymph node metastases (N0) and no distant metastases (M0). The most common sites for metastases from breast cancer are the skeleton, lung, liver, and brain. In general, women and health care professionals prefer intensive screening and surveillance after a diagnosis of breast cancer. Screening protocols include conventional imaging such as chest radiography, bone scan, ultrasound of the liver, and MRI of brain...
November 2016: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/27812640/applications-for-a-hybrid-operating-room-in-thoracic-surgery-from-multidisciplinary-procedures-to-image-guided-video-assisted-thoracoscopic-surgery
#18
Ricardo Mingarini Terra, Juliano Ribeiro Andrade, Alessandro Wasum Mariani, Rodrigo Gobbo Garcia, Jose Ernesto Succi, Andrey Soares, Paulo Marcelo Zimmer
The concept of a hybrid operating room represents the union of a high-complexity surgical apparatus with state-of-the-art radiological tools (ultrasound, CT, fluoroscopy, or magnetic resonance imaging), in order to perform highly effective, minimally invasive procedures. Although the use of a hybrid operating room is well established in specialties such as neurosurgery and cardiovascular surgery, it has rarely been explored in thoracic surgery. Our objective was to discuss the possible applications of this technology in thoracic surgery, through the reporting of three cases...
September 2016: Jornal Brasileiro de Pneumologia: Publicaça̋o Oficial da Sociedade Brasileira de Pneumologia e Tisilogia
https://www.readbyqxmd.com/read/27810214/comparison-of-ultrasound-imaging-and-video-otoscopy-with-cross-sectional-imaging-for-the-diagnosis-of-canine-otitis-media
#19
J Classen, A Bruehschwein, A Meyer-Lindenberg, R S Mueller
Ultrasound imaging (US) of the tympanic bulla (TB) for diagnosis of canine otitis media (OM) is less expensive and less invasive than cross-sectional imaging techniques including computed tomography (CT) and magnetic resonance imaging (MRI). Video otoscopy (VO) is used to clean inflamed ears. The objective of this study was to investigate the diagnostic value of US and VO in OM using cross-sectional imaging as the reference standard. Client owned dogs with clinical signs of OE and/or OM were recruited for the study...
November 2016: Veterinary Journal
https://www.readbyqxmd.com/read/27809936/impact-of-combined-fdg-pet-ct-and-mri-on-the-detection-of-local-recurrence-and-nodal-metastases-in-thyroid-cancer
#20
Johann-Martin Hempel, Roman Kloeckner, Sandra Krick, Daniel Pinto Dos Santos, Simin Schadmand-Fischer, Patrick Boeßert, Sotirios Bisdas, Matthias M Weber, Christian Fottner, Thomas J Musholt, Mathias Schreckenberger, Matthias Miederer
BACKGROUND: Suspected recurrence of thyroid carcinoma is a diagnostic challenge when findings of both a radio iodine whole body scan and ultrasound are negative. PET/CT and MRI have shown to be feasible for detection of recurrent disease. However, the added value of a consensus reading by the radiologist and the nuclear medicine physician, which has been deemed to be helpful in clinical routines, has not been investigated. This study aimed to investigate the impact of combined FDG-PET/ldCT and MRI on detection of locally recurrent TC and nodal metastases in high-risk patients with special focus on the value of the multidisciplinary consensus reading...
November 3, 2016: Cancer Imaging: the Official Publication of the International Cancer Imaging Society
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