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Sun Phillip Zhe PZ Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, 02129, - - 2014
Chemical exchange saturation transfer (CEST) MRI is sensitive to dilute proteins and peptides as well as microenvironmental properties. However, the complexity of the CEST MRI effect, which varies with the labile proton content, exchange rate and experimental conditions, underscores the need for developing quantitative CEST (qCEST) analysis. Towards this goal, ...
Nakazato Ryo R St. Luke's International Hospital, Tokyo, - - 2014
Positron emission tomography (PET) myocardial perfusion imaging (MPI) has high diagnostic accuracy and prognostic value. PET-MPI can also be used to quantitatively evaluate regional myocardial blood flow (MBF). This technique also allows the calculation of the coronary flow reserve (CFR)/myocardial flow reserve (MFR), which is the ratio of MBF at ...
Zhang Zai-Xian ZX Department of Radiology, Shanghai First People's Hospital, School of Medicine, 100# Haining Rd, Shanghai Jiao Tong University, Shanghai 200080, - - 2014
To assess the diagnostic performance of magnetic resonance imaging (MRI) for targeting prostate cancer in patients with previous negative biopsies and elevated prostate-specific antigen (PSA) levels. Pubmed, Scopus, and Cochrane Library databases were searched to identify suitable studies published from January 2001 to October 2013. Polled estimation and subgroup analysis ...
Bell Megan E ME Department of Radiology, Mayo Clinic, 5777 E. Mayo Blvd., Phoenix, AZ, 85054, - - 2014
To evaluate if and to what extent the degree of subspecialization in abdominal imaging (AI) affects rates of discrepancies identified on review of body CT studies initially interpreted by board-certified radiologists not specialized in AI. AI division radiologists at one academic medical center were classified as primary or secondary members ...
Cho Nariya N Form the Departments of Radiology (N.C., M.L., W.K.M.), Internal Medicine (S.A.I., K.H.L.), Pathology (I.A.P.), and Surgery (W.H., D.Y.N.), Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 110-744, Republic of - - 2014
Purpose To prospectively compare the performance of dynamic contrast material-enhanced (DCE) magnetic resonance (MR) imaging using parametric response map (PRM) analysis with that using pharmacokinetic parameters (transfer constant [K(trans)], rate constant [kep ], and relative extravascular extracellular space [ve]) in the early prediction of pathologic responses to neoadjuvant chemotherapy (NAC) ...
Runde Daniel D Department of Emergency Medicine, Harbor-UCLA Medical Center, David Geffen School of Medicine UCLA, Box 21, 1000, W Carson St. Torrance, Los Angeles, CA, 90509-2910, USA, - - 2014
The convenience of a computed tomography (CT) scanner in the emergency department (ED) may impact utilization rates. Our primary aim was to determine the rate of utilization before and after the placement of an ED CT scanner. Secondary aims were to determine the rate of utilization by anatomic region and ...
Butler Tracy T Center for Brain Health, Department of Psychiatry, New York University School of Medicine, 145 East 32nd Street, New York, NY 10016, USA; Comprehensive Epilepsy Center, Department of Neurology, New York University School of Medicine, 223 East 34th Street, New York, NY 10016, USA. Electronic address: - - 2014
Septal nuclei, located in basal forebrain, are strongly connected with hippocampi and important in learning and memory, but have received limited research attention in human MRI studies. While probabilistic maps for estimating septal volume on MRI are now available, they have not been independently validated against manual tracing of MRI, ...
Chanplakorn Pongsthorn - - 2014
Cervical pedicle screw (CPS) insertion is a technically demanding procedure. The quantitative understanding of cervical pedicle morphology, especially the narrowest part of cervical pedicle or isthmus, would minimize the risk of catastrophic damage to surrounding neurovascular structures and improve surgical outcome. The aim of this study was to investigate morphology ...
Mackintosh M L ML Department of Gynaecological Oncology, Central Manchester Foundation Trust , Manchester , - - 2014
Our aim was to design and validate a model of CT findings that predict suboptimal cytoreduction in primary surgery (PS) for Stage III-IV epithelial ovarian cancer (EOC). We performed a retrospective review of preoperative CT scans of patients undergoing PS for EOC in a cancer centre in London, UK, between ...
Kuru Timur H TH From the *Department of Urology, University Hospital Heidelberg, Heidelberg, Germany; †Department of Radiology, ‡Quantitative Imaging-based Disease Characterization, and §Medical and Biological Informatics, German Cancer Research Center (DKFZ), Heidelberg, - - 2014
To compare 2 previously presented algorithms for extracting parameters from intravoxel incoherent motion (IVIM) studies and investigate them in the context of tissue differentiation. Magnetic resonance imaging (MRI) was performed in 23 patients without histologically proven prostate carcinoma (PCa) and 27 patients with histologically proven PCa. Two methods were used ...
Zajac Jakub J Division of Cardiovascular Medicine, Department of Medical and Health Sciences, Linköping University, Linköping, Sweden; Center for Medical Image Science and Visualization (CMIV), Linköping University, Linköping, Sweden; Department of Clinical Physiology, UHL, County Council of Östergötland, Linköping, - - 2014
To assess turbulent kinetic energy (TKE) within the left ventricle (LV) of healthy subjects using novel 4D flow magnetic resonance imaging (MRI) methods and to compare TKE values to those from a limited group of patients with a spectrum of dilated cardiomyopathy (DCM). 4D flow and morphological MRI data were ...
Baunin C C Department of Paediatric Imaging, hôpital des Enfants, CHU de Toulouse, 31059 Toulouse, - - 2014
To evaluate diffusion MRI of the proximal femoral epiphysis and metaphysis as a prognosis factor in Legg Calvé Perthes (LCP) disease. Thirty-one children (mean age 5.5 years, range 2.5-10.5) with unilateral LCP were included in a prospective, consecutive series. Radiographs were analysed and classified as per Herring criteriae. Mean follow-up ...
Valencia Victoria V University of California, San Francisco, 533 Parnassus Ave. Ste. U368, San Francisco CA 94143-0628. Electronic address: - - 2014
Urolithiasis (kidney stones) is a common reason for Emergency Department (ED) visits, accounting for nearly 1% of all visits in the United States. Computed Tomography (CT) has become the most common imaging test for these patients but there are few comparative effectiveness data to support its use in comparison to ...
Picardi Marco M From the Departments of Clinical Medicine and Surgery (M.P., N.P., M.C., C.Q., F.P.), and Advanced Biomedical Science (I.C., G.C., G.P.), Federico II University Medical School, Naples, Italy; Department of Medicine and Surgery, University Medical School, Salerno, Italy (P.Z.); and Department of Economics, Management, Society and Institutions, University of Molise, Campobasso, Italy - - 2014
Purpose To compare the use of fluorine 18 fluorodeoxyglucose (FDG) positron emission tomography (PET)/computed tomography (CT) with the use of a combination of ultrasonography (US) and chest radiography for systematic follow-up of patients with high-risk Hodgkin lymphoma. Materials and Methods Institutional review board approval and informed consent were obtained. In ...
Choi Won Seok WS Department of Radiology (W.S.C., H.-C.K., S.H., J.W.Cho., J.W.Chu.), Seoul National University College of Medicine; Institute of Radiation Medicine (W.S.C., H.-C.K., S.H., J.W.Cho., J.W.Chu.), Seoul National University Medical Research Center; Clinical Research Institute (W.S.C., H.-C.K., S.H., J.W.Cho., J.W.Chu.), Seoul National University - - 2014
To evaluate the role of C-arm computed tomography (CT) performed at the proper hepatic artery or equivalent in patients with caudate-lobe hepatocellular carcinoma (HCC) for the detection of tumor-feeding arteries during chemoembolization. From July 2009 to June 2012, 1,785 patients received initial chemoembolization at a single institution. Among them, 52 ...
Paulides M M MM Erasmus Medical Center, Rotterdam, - - 2014
Clinical studies have established a strong benefit from adjuvant mild hyperthermia (HT) to radio- and chemotherapy for many tumor sites, including the head and neck (H&N). The recently developed HYPERcollar allows the application of local radiofrequency HT to tumors in the entire H&N. Treatment quality is optimized using electromagnetic and ...
Choi Hongyoon H aDepartment of Nuclear Medicine, Seoul National University Hospital bDepartment of Neurosurgery, Seoul National University College of Medicine, Seoul National University Hospital cDepartment of Molecular Medicine and Biopharmaceutical Science, Graduate School of Convergence Science and Technology dCancer Research Institute eSchool of Chemical and Biological Engineering fCenter for Nanoparticle Research, Institute for Basic Science Seoul National University, Departments of gRadiology hPathology, Seoul National University College of Medicine, Seoul, Korea iDepartment of Radiological Sciences, University of California at Irvine, Irvine, California, - - 2014
C-Methionine (MET) PET and diffusion-weighted (DW) MRI are commonly used for evaluation of gliomas. We assessed the correlation between MET uptake and diffusion restriction measured on DW MRI in glioma. Thirty-one patients with gliomas, who were initially examined with MET PET and DW MRI, were enrolled retrospectively. MET PET and ...
Jacquot A A Service d'orthopédie-traumatologie, centre chirurgical E.-Galle, 49, rue Hermite, 54000 Nancy, - - 2014
Distal humerus fractures are difficult to characterise and to classify according to the AO system. In this multicentre study, our objectives were to assess the usefulness of computed tomography (CT) and to measure intra-observer and inter-observer reliability according to observer experience. An online survey of professional practice was performed using ...
Tsou Kuan-Chuan KC Department of Surgery, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, - - 2014
The role computed tomography (CT) performed prior to thoracoscopic surgery for primary spontaneous pneumothorax (PSP) remains unclear. We retrospectively reviewed medical records of all patients who underwent thoracoscopic surgery for PSP during 2008-2012. Patients were stratified into two groups: CT group (patients who received preoperative CT scanning) and control group ...
Ramarajan Naresh N Division of Emergency Medicicine, University of California Los Angeles, 924 Westwood Boulevard, Suite 300, Los Angeles, CA, - - 2014
Although follow-up CT is recommended for pediatric appendicitis if initial ultrasound (US) is equivocal, many physicians observe the patient at home. There are limited data to understand currently how common or safe this practice is. Our objectives are to assess prevalence of acute appendicitis and outcomes in patients with equivocal ...
Martin-Vaquero Paula P Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH, - - 2014
Great Danes are predisposed to osseous-associated cervical spondylomyelopathy (Wobbler syndrome). The first aim of this prospective study was to compare values measured using previously published intravertebral and intervertebral ratio methods and a novel ventrodorsal ratio method in radiographs of clinically normal and affected Great Danes. The second aim was to ...
Fernández-Pérez G C GC Servicio de Radiodiagnóstico, Complejo Asistencial de Ávila, Ávila, España. Electronic address: - - 2014
In cardiac magnetic resonance imaging studies, left ventricular systolic function is usually calculated automatically. To understand and interpret parameters of left ventricular systolic function correctly, it is fundamental to understand how each parameter is obtained and why values obtained with different techniques, for example, ultrasonography and magnetic resonance imaging, can ...
Oakden Wendy W Department of Medical Biophysics, University of Toronto, Toronto, ON, - - 2014
Carr-Purcell-Meiboom-Gill-based sequences are often assumed to be insensitive to diffusion. However, imaging gradients always contribute some degree of diffusion weighting which increases with resolution. This may cause an apparent decrease in T2 when using a multi-echo sequence, such as quantitative T2 (qT2) at high resolution. This study investigated the impact ...
Liu Qi Q Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA; Department of Biomedical Engineering, Northwestern University, Chicago, Illinois, - - 2014
Low pH is associated with intervertebral disc (IVD)-generated low back pain (LBP). The purpose of this work was to develop an in vivo pH level-dependent magnetic resonance imaging (MRI) method for detecting discogenic LBP, without using exogenous contrast agents. The ratio of R1ρ dispersion and chemical exchange saturation transfer (CEST) ...
Sudarski Sonja S Institute of Clinical Radiology and Nuclear Medicine, University Medical Center Mannheim, Medical Faculty Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, D-68167 Mannheim, Germany. Electronic address: - - 2014
To compare in dual-energy CT (DECT) conventionally reconstructed polyenergetic images (PEI) at 120 kVp to virtual monoenergetic images (MEI) at different kiloelectron volt (keV) levels for evaluation of liver and gastrointestinal stromal tumor (GIST) hepatic metastases with regard to objective (IQob) and subjective image quality (IQsub) assessed by two readers ...
Thompson John D JD University of Salford, Directorate of Radiography, 6th Floor Allerton Building, Frederick Road Campus, Greater Manchester, M6 6PU, UK; University Hospitals of Morecambe Bay NHS Foundation Trust, Nuclear Medicine, Furness General Hospital, Dalton Lane, Barrow-in-Furness, Cumbria, LA14 4LF, UK. Electronic address: - - 2014
The purpose of this study was to compare lesion-detection performance when interpreting computed tomography (CT) images that are acquired for attenuation correction when performing single photon emission computed tomography/computed tomography (SPECT/CT) myocardial perfusion studies. In the United Kingdom, there is a requirement that these images be interpreted; thus, it is ...
Callahan Michael J MJ 1 Department of Radiology, Boston Children's Hospital, 300 Longwood Ave, Boston, MA - - 2014
OBJECTIVE. There are limited data available on the use of IV contrast media for CT studies in the pediatric population. The purpose of this study is to determine the practice patterns of IV contrast media usage for pediatric CT by members of the Society for Pediatric Radiology (SPR). MATERIALS AND ...
Huang Yan-Hao YH Department of Computer Science and Information Engineering, National Taiwan University, Taipei, Taiwan, 10617, Republic of - - 2014
This study aimed to investigate a computer-aided system for detecting breast masses using dynamic contrast-enhanced magnetic resonance imaging for clinical use. Detection performance of the system was analyzed on 61 biopsy-confirmed lesions (21 benign and 40 malignant lesions) in 34 women. The breast region was determined using the demons deformable ...
Podleska Lars Erik - - 2014
Exact drug dosing in isolated limb perfusion (ILP) and infusion (ILI) is essential. We developed and evaluated a model for calculating the volume of extremities and compared this model with body weight- and height-dependent parameters. The extremity was modeled by a row of coupled truncated cones. The sizes of the ...
Kamal N M NM Pediatric department, Faculty of medicine, Cairo University and Pediatric consultant, Al Hada Forced Arm Hospital, Taif, Saudia Arabia - - - 2014
To assess the prognostic role of interim 18FFDGPET/CT in pediatric patients with Hodgkin's lymphoma (PHL). Prospective analysis of 254 Saudi patients with pathologically proven PHL, they underwent interim 18F-FDG-PET/CT after 2 cycles of ABVD with baseline study, analysis of interim 18F-FDG-PET/CT was done visually according to the Deauville score (5-point ...
Terrier A A École Polytechnique Fédéral de Lausanne, EPFL-LBO, Station 19, Lausanne, 1015, - - 2014
The three-dimensional (3D) correction of glenoid erosion is critical to the long-term success of total shoulder replacement (TSR). In order to characterise the 3D morphology of eroded glenoid surfaces, we looked for a set of morphological parameters useful for TSR planning. We defined a scapular coordinates system based on non-eroded ...
Park Kang Min KM Department of Neurology, Haeundae Paik Hospital, Inje University, Busan, South - - 2014
The calculated electrophysiological parameters, such as terminal latency index (TLI), residual latency, modified F ratio, and F-wave inversion, have been investigated as a diagnostic tool for detection of early stage of carpal tunnel syndrome (CTS) in the literature. However, the correlation of these calculated electrophysiological parameters with the clinical severity ...
Nakamaru Yuji Y Department of Otolaryngology-Head & Neck Surgery, Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, - - 2014
Accurate preoperative identification of the attachment site is the key to the successful surgical management of sinonasal inverted papillomas (IPs). This study investigated the value of preoperative imaging to identify the attachment sites of IPs. We analyzed 10 consecutive patients with pathologically proven IPs. Two radiologists predicted the attachment sites ...
Hulme K W KW Department of Imaging Physics, The University of Texas M.D. Anderson Cancer Center, Houston, Texas 77030 and The University of Texas Graduate School of Biomedical Sciences, Houston, Texas - - 2014
This paper evaluates the effects of computed tomography (CT) image noise and artifacts on quantitative single-photon emission computed-tomography (SPECT) imaging, with the aim of establishing an appropriate range of CT acquisition parameters for low-dose protocols with respect to accurate SPECT attenuation correction (AC). SPECT images of two geometric and one ...
Freifeld Y Y Urology department, Carmel Medical Center, Technion, the Ruth & Bruce Rappaport Faculty of - - 2014
Due to its high specificity and sensitivity non-contrast computed tomography is being increasingly used for diagnosis and follow up of patients with ureteral stones, we evaluate the feasibility of limited field non-contrast CT for follow-up of patients with ureteral stones. 71 patients who underwent both a diagnostic and a follow-up ...
Plautz Tia - - 2014
Proton radiography has applications in patient alignment and verification procedures for proton beam radiation therapy. In this paper, we report an experiment which used 200 MeV protons to generate proton energy-loss and scattering radiographs of a hand phantom. The experiment used the first-generation proton computed tomography (CT) scanner prototype, which ...
Finkenstaedt Tim T From the *Institute of Diagnostic and Interventional Radiology and †Division of Plastic and Reconstructive Surgery, University Hospital Zurich; ‡Institute of Anatomy, University Zurich; and §Department of Radiology, Orthopaedic University Hospital of Balgrist, Zurich, - - 2014
The aim of this study was to compare image quality and extent of artifacts from scaphoid fracture fixation screws using different computed tomography (CT) modalities and radiation dose protocols. Imaging of 6 cadaveric wrists with artificial scaphoid fractures and different fixation screws was performed in 2 screw positions (45° and ...
Mischi Massimo M From the *Department of Electrical Engineering, Eindhoven University of Technology, Eindhoven; Departments of †Radiology, ‡Urology, Academic Medical Center, University of Amsterdam, Amsterdam; §Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven; and ∥Department of MR Clinical Science, Philips Healthcare, Best, the - - 2014
Cancer angiogenesis can be imaged by using dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI). Pharmacokinetic modeling can be used to assess vascular perfusion and permeability, but the assessment of angiogenic changes in the microvascular architecture remains challenging. This article presents 2 models enabling the characterization of the microvascular architecture by DCE-MRI. ...
Agarwal Amit A Department of Radiology, Penn State University Hershey Medical Center, 500 University Drive, Hershey, PA, 17036, USA, - - 2014
Developmental venous anomaly (DVA), formally known as venous angioma, is a congenital anatomic variant of the venous drainage of the brain. Although they typically have a benign clinical course and a low symptomatic rate, thrombosis of a drainage vein may occur, leading to potentially debilitating complications. We report a unique ...
Omori Yasushi Y Department of Orthopaedic Biomaterial Science, Osaka University Graduate School of Medicine, Suita, - - 2014
BACKGROUND:A Hill-Sachs lesion is a common injury associated with anterior glenohumeral instability, and a Hill-Sachs lesion that engages with the anterior glenoid rim is 1 factor related to recurrent instability. In a cadaveric study in 2007, a new concept, the "glenoid track," was proposed to evaluate the risk of engagement ...
Himoto Yuki Y Departments of *Diagnostic Imaging and Nuclear Medicine, and †Gynecology and Obstetrics, Graduate School of Medicine, Kyoto University, Kyoto, - - 2014
The purpose of this study was to quantitatively evaluate 3 types of magnetic resonance imaging (MRI) parameters in parallel for the early prediction of neoadjuvant chemotherapy (NACT) effectiveness in cervical cancer-tumor volume parameters, diffusion parameters, and perfusion parameters. We prospectively evaluated 13 patients with International Federation of Gynecology and Obstetrics ...
Sheth Kevin N KN Departments of Neurology and Neurosurgery, Yale University School of Medicine, 15 York Street, LCI 710A, New Haven, CT, 06520, USA, - - 2014
Malignant infarction is characterized by the formation of cerebral edema, and medical treatment is limited. Preclinical data suggest that glyburide, an inhibitor of SUR1-TRPM4, is effective in preventing edema. We previously reported feasibility of the GAMES-Pilot study, a two-center prospective, open label, phase IIa trial of 10 subjects at high ...
Corwin Michael T MT From the Department of Radiology, University of California Davis Medical Center, Sacramento, - - 2014
The objective of this study was to determine bony landmarks that can be used on computed tomographic (CT) localizer radiographs to prescribe a reduced scan range for noncontrast CT (NCCT) for suspected urolithiasis. This retrospective review comprised 243 patients who underwent NCCT for suspected urolithiasis. Scout line mode was used ...
Jaskolka Diana N DN From the *Department of Medical Imaging, The Ottawa Hospital, Ottawa, Ontario, Canada; and †Radiology State University of New York at Stony Brook, Stony Brook, - - 2014
We compared preoperative and postoperative computed tomography (CT) versus radiographic imaging in the evaluation of acetabular fractures (AFs). Fifty-four patients who underwent imaging for AFs were retrospectively evaluated. Postoperative reduction quality was assessed on radiographs and CT scan by 2 observers. Rate of reintervention was noted. Radiation exposure from CT ...
Müller Camillo Theo CT From the Departments of *Orthopedic Surgery and †Radiology, Orthopedic University Hospital Balgrist, Zurich, - - 2014
: Traumatic tendon tear of the rotator cuff occurs frequently and leads to fatty muscle infiltration. With regard to the outcome, fatty infiltration of the rotator cuff muscles constitutes a major negative predictive factor after rotator cuff surgery. In 1989, Goutallier et al established his classification system for assessment of ...
Ahmed Salmaan S From the Departments of *Diagnostic Radiology, † Neurosurgery, and ‡ Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, - - 2014
Resection cavity diameter of less than 40 mm is required to be eligible for stereotactic radiosurgery (SRS), after gross total resection of brain metastasis at our institution. Our study evaluates the correlation between vasogenic edema and change in cavity size for 30 days. Cavity size was measured on the postoperative ...
Ha R R Department of Radiology, Columbia University Medical Center, New York, NY, USA. Electronic address: - - 2014
To evaluate the risk of cancer of an enhancing focus identified at breast magnetic resonance imaging (MRI) by determining the positive predictive value (PPV) associated with specific characteristics of an enhancing focus. Retrospective, institutional review board-approved review of the database identified 111 consecutive patients who underwent short-term follow-up of 136 ...
Knutsson Linda L Department of Medical Radiation Physics, Lund University, Lund, - - 2014
To evaluate and mutually compare the tail-scaling approach and the prebolus administration concept for reduction of arterial partial volume effects (PVEs), because reproducible absolute quantification of cerebral blood flow (CBF) by dynamic susceptibility contrast magnetic resonance imaging (MRI) is often hampered by PVEs in the arterial input function (AIF) registration. ...
Caulo Massimo M From the Department of Neuroscience and Imaging (M.C., P.A.M., A.R.C., A.T.) and ITAB-Institute of Advanced Biomedical Technologies (M.C., V.P., D.T., P.A.M., C.B., E.P., S.S., A.T.), University G. d'Annunzio, Via Dei Vestini 33, 66100 Chieti, - - 2014
Purpose To grade brain gliomas by using a data-driven analysis of multiparametric magnetic resonance (MR) imaging, taking into account the heterogeneity of the lesions at MR imaging, and to compare these results with the most widespread current radiologic reporting methods. Materials and Methods One hundred eighteen patients with histologically confirmed ...
Cunha Edite E REQUIMTE, Departamento de Química, Faculdade de Farmácia, Universidade do Porto, Rua Jorge Viterbo Ferreira no 228, 4050-313 Porto, - - 2014
In the present work an automatic methodology, based on sequential injection analysis, (SIA) for the kinetic evaluation of α-chymotrypsin (α-CT) activity in cetyltrimethylammonium bromide (CTAB)/ionic liquid (IL) mixed micelles, was developed. The α-CT-catalysed hydrolysis of N-succinyl-l-phenylalanine-p-nitroanilide (SPpNA) was monitored by following the change in absorbance at 410nm brought about by ...
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