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Cheah Chan Y - - 2014
Abstract There are limited data regarding role of PET-CT scanning in primary mediastinal B-cell lymphoma (PMBL). We analyzed 28 patients with PMBL treated with chemotherapy, of whom 25 (89%) also received rituximab and 17 (61%) radiotherapy. PET-CT scans were interpreted using visual analysis and 5-point scale. After median follow up ...
Monfardini Lorenzo L Department of Radiology Milan, European Institute of Oncology, Via Ripamonti 435, 20100, Milan, Italy, - - 2014
The authors assessed the adequacy and sensitivity of CT-guided bone biopsy in 308 procedures performed in 286 cancer patients with suspected bone metastases. An electronic search of our CT-guided bone biopsy database was retrospectively performed to evaluate the adequacy of samples and, in the event of negative samples, whether the ...
Panagiotidis Emmanouil E Departments of aNuclear Medicine bRadiology, Evangelismos Hospital cDepartment of Clinical Therapeutics, Athens University, Medical School, Athens, - - 2014
The purpose of this prospective study was to investigate the role of 2-(fluorine-18)-fluoro-2-deoxy-D-glucose (F-FDG) PET/computed tomography (CT) in the diagnosis of recurrent colorectal cancer (CRC) in patients with increased tumor markers and negative contrast-enhanced computed tomography (CeCT) results. Forty-three patients (27 male; median age 66 years, range 31-93 years) with ...
Cheah Chan Y CY Department of Haematology, Peter MacCallum Cancer Centre, Locked Bag 1, A'Beckett St, East Melbourne, 8006, Victoria, - - 2014
The optimum follow-up of patients with transformed indolent lymphoma (TrIL) is not well defined. We sought to determine the utility of surveillance positron emission tomography-computed tomography (PET-CT) in patients with TrIL achieving complete metabolic remission (CMR) after primary therapy. We performed a retrospective analysis of patients with TrIL treated at ...
Rud Erik E 1 Department of Radiology and Nuclear Medicine, Division of Diagnostics and Intervention, Oslo University Hospital, Aker, Postboks 4959, Nydalen, 0424 Oslo, - - 2014
OBJECTIVE. The primary purpose of this study was to evaluate the detection rate of local radiorecurrent prostate cancer by using diffusion-weighted MR imaging (DWI) and targeted biopsies. The secondary purpose was to assess the value of performing random biopsies. MATERIALS AND METHODS. This study included 42 consecutive patients with biochemical ...
Mallee Wouter H WH Department of Orthopaedic Surgery, Academic Medical Center Amsterdam, Secretariaat Orthopaedie, G4-Noord, Meibergdreef 9, 1100 Amsterdam, The - - 2014
Definitive diagnosis of occult scaphoid fractures remains difficult. We tested the null hypothesis that, for diagnosis of true fractures among suspected scaphoid fractures, computed tomography (CT) reformations along the long axis of the scaphoid have the same accuracy as reformations made relative to the anatomical planes of the wrist. In ...
So Elson L EL aMayo Clinic College of Medicine, Rochester, Minnesota bUniversity of Arkansas for Medical Sciences, Central Arkansas Veterans Healthcare System, Little Rock, Arkansas, - - 2014
This study discusses the challenges of MRI-negative epilepsy surgery, and the strategies in using advanced MRI and functional imaging tests and their associated postsurgical outcome. Several methods for processing MRI postacquisition data have identified either previously undetectable or overlooked MRI abnormalities. The resection of these abnormalities is associated with excellent ...
Sulc Vlastimil V From the Departments of Neurology (V.S., B.H.B., D.T.J., G.D.C., L.C.W.-K., J.W.B., E.L.S., G.A.W.) and Radiology (M.L.S., B.P.M., R.E.W.) and Biomedical Imaging Resource (S.S., D.P.H., D.R.H., R.A.R.), Mayo Clinic, Rochester, MN; International Clinical Research Center (V.S., D.H.), St. Anne's University Hospital, Brno; and the Department of Neurology (V.S.), 2nd Faculty of Medicine, Charles University in Prague and Motol University Hospital, Prague, Czech - - 2014
To evaluate the benefit of statistical SPECT processing over traditional subtraction methods, we compared ictal-interictal SPECT analyzed by statistical parametric mapping (SPM) (ISAS), statistical ictal SPECT coregistered to MRI (STATISCOM), and subtraction ictal-interictal SPECT coregistered with MRI (SISCOM) in patients with MRI-negative focal temporal lobe epilepsy (nTLE) and extratemporal lobe ...
Benamira Lina Zahra LZ From the Division of Otolaryngology-Head and Neck Surgery, Montreal University Hospital Center (CHUM), Otology and Neurotology, University of Montreal, Montreal, Quebec, - - 2014
Identify independent clinical and audiometric factors to predict a positive high-resolution computed tomography (HRCT) scan for superior canal dehiscence (SCD). Retrospective chart review. Tertiary referral center. Patients presenting SCD. Audiogram, VEMP, temporal bone HRCT, and SCD symptoms and signs chart. ABG, VEMP threshold, and symptoms and signs. Approximately 106 patients ...
Xu Na N Department of General Internal Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, - - 2014
Integrated positron emission tomography and computed tomography (PET/CT) is increasingly used for the preoperative nodal staging of non-smail cell lung cancer (NSCLC). The aim of this study was to evaluate the accuracy of PET/CT in comparison with CT in detection of nodal metastasis and preoperative nodal staging in patients with ...
Koshkareva Yekaterina Y Department of Otolaryngology, University of Pittsburgh School of Medicine, Pittsburgh, - - 2014
To determine whether the result of first post-treatment positron emission tomography and computed tomography (PET/CT) is predictive of outcome in patients with oropharyngeal squamous cell carcinoma (OPSCC), and whether PET/CT accuracy is affected by human papillomavirus(HPV) status. Retrospective review LEVEL OF EVIDENCE: 2b METHODS: Demographic, clinical and radiographic data were ...
Shen Pei P Department of Oral and Maxillofacial Surgery, Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, No. 639, Zhi Zao Ju Rd, 200011 Shanghai, People's Republic of - - 2014
To investigate the diagnostic accuracy of magnetic resonance imaging (MRI) for perforation of temporomandibular joint (TMJ). Consecutive 1845 patients (2524 joints) diagnosed as internal derangement (ID) of TMJ were collected from April 2003 to March 2010 in our department. All the patients were examined by MRI and treated by arthroscopy ...
Chan Michael W MW Department of Diagnostic Imaging, The Hospital for Sick Children, 555 University Ave., Toronto, Canada, M5G - - 2013
Blood-oxygen-level-dependent (BOLD) MRI has the potential to identify regions of early hypoxic and vascular joint changes in inflammatory arthritis. There is no standard protocol for analysis of BOLD MRI measurements in musculoskeletal disorders. To optimize the following BOLD MRI reading parameters: (1) statistical threshold values (low, r > 0.01 versus high, r > 0.2); ...
Kornmann Verena N N VN Department of Surgery, St. Antonius Hospital, Koekoekslaan 1, 3435 CM, Nieuwegein, The Netherlands, - - 2013
Anastomotic leakage is one of the most life-threatening complications after colonic surgery. Correct diagnosis and treatment is important to reduce morbidity and mortality. An abdominal CT scan is one of the main diagnostic tools in diagnosing anastomotic leaks. The aim of this study was to examine the accuracy of abdominal ...
Coppola Francesca F Radiology Unit, Department of Digestive Disease and Internal Medicine, S. Orsola Malpighi Hospital, Bologna, Italy, - - 2013
The purpose of this study is to describe our experience with cases of false negative findings at conventional colonoscopy (CC) that were identified by CT colonography (CTC). Conventional colonoscopy (CC) is the universally accepted gold-standard technique for the diagnosis of colonic polyps and cancers, however occasionally this method can generate ...
Hebel Carolin B CB University Hospital Aachen, Department of Nuclear Medicine, Pauwelsstraße 30, 52074 Aachen, - - 2013
The aim of the present study was to investigate the diagnostic and prognostic value of combined (18)F-2-fluorodeoxyglucose positron emission tomography and contrast enhanced X-ray computed tomography (FDG-PET/CT) in women with a suspicion of recurrent ovarian cancer. We retrospectively reviewed 48 patients with a suspicion of recurrent ovarian cancer who were ...
Collins Benjamin B Department of Otorhinolaryngology, University of Oklahoma Health Sciences Center, P.O. Box 26901 WP 1290, Oklahoma City, OK 73126-0901, United States. Electronic address: - - 2013
There are no studies comparing the accuracy of ultrasound and computed tomography in the same population of pediatric patients with lateral neck abscesses. This case series assesses the accuracy of the two imaging techniques. One hundred and forty imaging studies (ultrasound n=39 or CT n=101) that were performed from 2005 ...
Linsen Sabine S SS Associate Professor, Department of Prosthodontics, Preclinical Education and Dental Material Science, University of Bonn School of Dentistry, Bonn, Germany. Electronic address: - - 2014
This study aimed to evaluate effects of different registration positions on the condyle-disk position changes in the mandibular fossa in symptomatic individuals. Vertical and sagittal condyle position and thickness of the bilaminar zone were measured by magnetic resonance imaging during maximal intercuspation (MI) and with jigs in Gothic arch tracing ...
Adams Hugo J A - - 2013
To assess the prognostic implications of whole-body bone marrow MRI findings in diffuse large B-cell lymphoma (DLBCL) patients with a negative blind bone marrow biopsy (BMB). Thirty-eight patients with newly diagnosed DLBCL and negative blind BMB prospectively underwent whole-body MRI (T1-weighted, T2-weighted short inversion time inversion recovery, and diffusion-weighted sequences), ...
Biscaldi Ennio - - 2013
To compare the accuracy of multidetector computerized tomography enema (MDCT-e) and magnetic resonance enema (MRI-e) in determining the presence of sigmoid and rectal endometriotic nodules. 260 women (32.6±4.3 years) with symptoms suggestive of rectosigmoid endometriosis underwent MDCT-e and MRI-e prior to laparoscopy. After retrograde colonic distention and injection of intravenous ...
Choe Hyonmin - - 2013
and Context: Rapid diagnosis and accurate detection of etiological agents in pyogenic spinal infection (PSI) patients are important. The purpose of this study was to evaluate the clinical usefulness of Methicillin-resistant Staphylococcus specific PCR (MRS-PCR) and broad-range universal PCR (U-PCR) for diagnosing PSI. A prospective diagnostic study. Thirty-two clinically-suspect PSI ...
Kelders Anita - - 2013
In patients with differentiated thyroid carcinoma (DTC), metastases can either show iodine-131 (I) uptake on whole-body scintigraphy or F-2-fluoro-2-deoxy-D-glucose (F-FDG) uptake on combined PET and X-ray computed tomography (PET/CT), or a mix of both. The present study investigates the relationship between uptake patterns and prognosis in DTC patients, using thyroglobulin ...
Mylam Karen J - - 2013
ABSTRACT The aim of this study was to evaluate the prognostic value of clinician-interpretation of PET/CT reports at mid-therapy, interim PET (I-PET) and after end of first-line therapy (E-PET) in patients with diffuse large B-cell lymphoma (DLBCL). Four hundred and thirty patients were enrolled in this study comprising a total ...
Sharma Punit - - 2013
The objective of this study was to evaluate the predictive value of Ga-DOTANOC PET/CT in patients with suspected neuroendocrine tumor (NET). Data of 164 patients (mean age, 42.5 ± 17.3 years; 54.8% male) who underwent Ga-DOTANOC PET/CT for suspected NET were retrospectively analyzed. Neuroendocrine tumor was suspected based on clinical ...
Chen Qun - - 2013
Self-supported Mn3O4 patterns of aligned nanorods and nanotubes were synthesized through a bi-directional-bi-dimensionality growth model by using sodium gluconate and urea as additives under mild hydrothermal conditions without the use of any substrates. In one direction, Mn3O4 grows to form one-dimensional nanorods or nanotubes, while in the other direction Mn3O4 ...
Kimura Hiroaki - - 2013
A single-center case-referent study. To assess whether the "pedicle screw (PS) fluid sign" on magnetic resonance imaging (MRI) can be used to diagnose deep surgical site infection (SSI) after posterior spinal instrumentation (PSI). MRI is a useful tool for the early diagnosis of a deep SSI. However, the diagnosis is ...
Satahoo Shevonne S - - 2013
Evaluating the cervical spine in the obtunded trauma patient is a subject fraught with controversy. Some authors assert that a negative computed tomography (CT) scan is sufficient. Others argue that CT alone misses occult unstable injuries, and magnetic resonance imaging (MRI) will alter treatment. This study examines the data in ...
Yamada Hiroyuki - - 2013
This study investigated the diagnostic accuracy of hybrid positron-emission tomography/computed tomography (PET/CT) for lymph node (LN) metastasis of esophageal cancer. We also investigated the correlation between the size of metastatic nests and the detection by PET/CT. Two hundred and fifty-eight patients with esophageal squamous cell carcinoma who underwent esophagectomy with ...
Lungren Matthew P - - 2013
Purpose:To determine whether ownership of magnetic resonance (MR) imaging equipment by ordering physicians affects the likelihood of positive findings at MR imaging of the knee and to evaluate rates of knee abnormalities seen at MR imaging as a metric for comparison of utilization.Materials and Methods:The institutional review board approved this ...
Amrhein Timothy J - - 2013
OBJECTIVE. The purpose of this article is to determine whether ownership of MRI equipment by ordering physicians influences the frequency of negative shoulder MRI scans. MATERIALS AND METHODS. A retrospective review was performed of 1140 consecutive shoulder MRI scans ordered by two separate referring physician groups serving the same geographic ...
Marcinow Anna M - - 2013
IMPORTANCE Sentinel lymph node biopsy has been proposed as an alternative to up-front elective neck dissection (END) for determination of pathologic nodal status in patients undergoing surgical treatment for oral cavity squamous cell carcinoma (OSCC) with clinically negative neck (cN0). Sentinel lymph node biopsy using current standard tracer agents and ...
Lim Lee Kai - - 2013
Current management guidelines for CT scan-negative subarachnoid haemorrhage (SAH) patients recommend cerebral digital subtraction angiography (DSA). We aimed to investigate the utility of CT angiography (CTA) as a substitute for DSA in these patients. We included patients who presented with SAH confirmed by spectrophotometric xanthochromia analysis of cerebrospinal fluid (CSF) ...
Takeuchi Mikinobu - - 2013
In this paper the authors report the case of a patient with ossification of the posterior longitudinal ligament (OPLL) below the axial vertebra (C-2) at the kyphotic cervical spine, with an atlas vertebra (C-1) posterior arch that compressed the spinal cord with the head in a pathognomonic position, similar to ...
Stoppino L P - - 2013
To evaluate the diagnostic performance of magnetic resonance arthrography (MR-A) of the shoulder in the diagnosis of rotator cuff tears involving the humeral insertion of the supraspinatus and infraspinatus tendon (footprint), using arthroscopy as the reference standard. The study population included 90 consecutive patients with history and clinical diagnosis of ...
Liu Kai - - 2013
Various methods have been used to image and measure the normal range of axial rotation of the atlanto-occipital joint (AOJ), but a simple, precise, and reliable method is needed for everyday practice. To generate normative ranges for AOJ rotation in various in-vivo positions and to investigate the reliability of a ...
Hotter Benjamin - - 2013
A significant amount of strokes are reported to be diffusion-weighted imaging (DWI) negative in acute imaging. We attempted to quantify the rate of false-negative high-resolution (hr) DWI and to identify a valid screening tool to guide follow-up MRI to diagnose infarction initially not visible on hrDWI. An a priori-defined post ...
Poletti Pierre-Alexandre - - 2013
To assess the value of contrast-enhanced sonography (CES) for the detection of delayed post-traumatic splenic pseudo-aneurysms, usually considered an indication for angiographic embolization. Sixty-three consecutive hemodynamically stable trauma patients in whom admission CT displayed a splenic injury of grade II or higher (AAST classification), without evidence of vascular involvement, were ...
Ko Seok Min - - 2013
The objective of this study was to determine the patterns of erroneous interpretation of preoperative computed tomography (CT) for detection of peritoneal lesions in advanced ovarian cancer. Between 2007 and 2011, 148 patients with International Federation of Gynecology and Obstetrics stage IIIC-IV ovarian cancer, who underwent multi-detector-row CT before primary ...
Gün Cem - - 2013
Our objective was to study the accuracy of emergency physician (EP) performed bedside ultrasonography (BUS) in patients with suspected anterior talofibular ligament (ATFL) injury. After a 6-h training program, from January to December 2011, an EP used BUS to prospectively evaluate patients presenting to the emergency department (ED) with suspected ...
van der Paardt Marije P - - 2013
Purpose:To obtain performance values of magnetic resonance (MR) imaging for restaging locally advanced rectal cancer after neoadjuvant treatment regarding tumor staging, nodal staging, and tumor-free circumferential resection margins (CRMs).Materials and Methods:MEDLINE, EMBASE, and Cochrane databases were searched for studies regarding restaging compared with a reference standard by using the terms ...
Tran Baotram - - 2013
There are variations in cervical spine (CS) clearance protocols in neurologically intact blunt trauma patients with negative radiological imaging but persistent neck pain. Current guidelines from the current Eastern Association for the Surgery of Trauma include options of maintaining the cervical collar or obtaining either magnetic resonance imaging (MRI) or ...
Bast Thomas - - 2013
MRI is one of the most important diagnostic tools in the presurgical evaluation of patients suffering from pharmaco-refractory focal epilepsies. Presence of a lesion on MRI influences both diagnostic classification as well as selection for surgery; however, the implications for MRI-negative cases are far from well defined for such patients. ...
Uno Atsuhiko - - 2013
Abstract Conclusion: Endolymphatic hydrops could be a reversible inner ear pathological condition. After sac surgery, hydrops was reduced and symptoms went into remission in some cases, although vertigo suppression was not always a result of the reduced hydrops. Objective: To examine the changes in endolymphatic hydrops detected by gadolinium (Gd) ...
De Pascale Agostino - - 2013
OBJECTIVES: The diagnosis of acute pyelonephritis (APN) requires demonstration of parenchymal involvement. When no predisposing conditions are found, non-complicated APN is suspected and CT or MRI should be performed. Diffusion-weighted (DW) MRI might be useful, quicker and cheaper than the standard gadolinium-enhanced (GE) MRI. The aim of this study is ...
Biesbroek J M - - 2013
Background: The aim of the current study was to determine the sensitivity and specificity of CT perfusion (CTP) for the detection of ischemic stroke by performing a systematic review and meta-analysis of published reports. Methods: We searched PubMed, Embase and the Cochrane library using the terms 'perfusion computed tomography', 'ischemic ...
Cornelis François - - 2013
Purpose:To retrospectively evaluate diagnostic accuracy of real-time contrast material-enhanced (CE) ultrasonography (US) transrectal US-guided biopsies in patients with persistently elevated prostate-specific antigen (PSA) levels, previous negative systematic transrectal US-guided biopsy results, and positive prostate multiparametric magnetic resonance (MR) findings.Materials and Methods:Institutional review board approval was obtained for this retrospective study. ...
McDermott M - - 2013
BACKGROUND AND PURPOSE:Optimizing the utilization of surveillance PET/CT in treated HNSCC is an area of ongoing research. Our aim was to determine the negative predictive value of PET/CT in patients with treated head and neck squamous cell cancer and to determine whether negative PET/CT reduces the need for further imaging ...
Cortés-Romera Montserrat - - 2013
PURPOSE: The evaluation of bone marrow infiltration (BMI) is of crucial importance in the staging of lymphoma. Although bone marrow biopsy (BMB) is the reference standard for the evaluation of BMI, it has limitations. PET/CT has become an excellent tool in staging of lymphoma, and bone marrow uptake is correlated ...
Tatarov Evgeny - - 2013
The application of a novel bipolar molecular glass in field-effect transistors leads to devices with photoinduced magnetoresistance (MR) sign change. In darkness a low external magnetic field increases the resistance (positive MR up to +0.1%), while a magnetic-field induced resistance decrease (negative MR up to -6.5%) can be achieved under ...
Wang Z Irene - - 2013
Patients with magnetic-resonance-imaging (MRI)-negative (or 'nonlesional') pharmacoresistant focal epilepsy are the most challenging group undergoing presurgical evaluation. Few large-scale studies have systematically reviewed the pathological substrates underlying MRI-negative epilepsies. In the current study, histopathological specimens were retrospectively reviewed from MRI-negative epilepsy patients (n=95, mean age=30 years, 50% female subjects). Focal ...
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