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Jiang Xuyuan X Department of Radiology, The First Affiliated Hospital of China Medical University, Shenyang, - - 2014
To apply 3D multifrequency MR elastography (3DMMRE) to the uterus and analyse the viscoelasticity of the uterine tissue in healthy volunteers considering individual variations and variations over the menstrual cycle. Sixteen healthy volunteers participated in the study, one of whom was examined 12 times over two menstrual cycles. Pelvic 3DMMRE ...
Wichmann Julian L JL Department of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany, - - 2014
To intra-individually compare single-portal-phase low-tube-voltage (100-kVp) computed tomography (CT) with 120-kVp images for short-term follow-up assessment of CT severity index (CTSI) of acute pancreatitis, interobserver agreement and radiation dose. We retrospectively analysed 66 patients with acute pancreatitis who underwent initial dual-contrast-phase CT (unenhanced, arterial, portal phase) at admission and short-term ...
Higaki Atsushi A Department of Radiology, Kawasaki Medical School, 577 Matsushima, Kurashiki City, Okayama, 701-0192, Japan, - - 2014
To evaluate the prognosis of "strict" high-risk nodules (small hepatocellular nodules detected only in the hepatobiliary phase of initial Gd-EOB-DTPA-enhanced MR examination) in patients with cirrhosis or chronic hepatitis. The study included thirty-three patients with 60 "strict" high-risk nodules showing hypointensity at the hepatobiliary phase that was undetectable at the ...
Legrand Laurence L Radiology Department, Fondation Hôpital Saint-Joseph, 185 rue Raymond Losserand, 75014, Paris, France, - - 2014
To identify the MRI sequences producing the greatest pancreatic adenocarcinoma conspicuity and to assess correlations linking MRI signal intensity and apparent diffusion coefficient to histopathological findings. We retrospectively included 22 patients with pancreatic adenocarcinoma who underwent MRI (1.5 or 3 T) before surgical resection. Fat-suppressed (FS) T1- and T2-weighted sequences; 3D ...
Nishie Akihiro A Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, - - 2014
The relationship between the washout pattern and constituent cell in adrenal hyperplasia (AH) has not been fully investigated. The purpose of this study was to elucidate the radiological or pathological factors determining the washout pattern of AH on dynamic CT. Ten patients with 14 surgically proven AHs were enrolled. Dynamic ...
Ginat Daniel Thomas DT Department of Radiology, University of Chicago, Chicago, Illinois - - 2014
Computed tomography (CT) is an essential tool in diagnostic imaging for evaluating many clinical conditions. In recent years, there have been several notable advances in CT technology that already have had or are expected to have a significant clinical impact, including extreme multidetector CT, iterative reconstruction algorithms, dual-energy CT, cone-beam ...
Haughton V V From the Department of Radiology (V.H.), University of Wisconsin, Madison, Wisconsin; and Center for Biological Computing (K.-A.M.), Simula, Lysaker, Norway. - - 2014
Flow imaging with cardiac-gated phase-contrast MR has applications in the management of neurologic disorders. Together with computational fluid dynamics, phase-contrast MR has advanced our understanding of spinal CSF flow. Phase-contrast MR is used to evaluate patients with Chiari I malformation who are candidates for surgical treatment. In theory, abnormal CSF ...
Schalkx Hanke J HJ Department of Radiology, University Medical Center Utrecht, PO Box 58800, 3584 CX, Utrecht, The Netherlands, - - 2014
Within-patient comparison of the enhancement patterns of normal liver parenchyma after gadobutrol and gadoxetate disodium, with emphasis on the start of hepatocytic uptake of gadoxetate disodium. Twenty-one patients (12 female, 9 male) without chronic liver disease underwent 1.5-T contrast-enhanced MRI twice, once with an extracellular contrast agent (gadobutrol) and once ...
Buffa Vitaliano V UOC Radiologia Cardiovascolare e d'Urgenza, AO San Camillo Forlanini, Rome, Italy, - - 2014
This study was done to evaluate the possibility of reducing the dose of ionising radiation by using dual-source dual-energy computed tomography (CT) in patients undergoing CT angiography of the aorta to search for endoleaks after endovascular aneurysm repair (EVAR). One hundred and forty-eight patients (117 M, 31 F; mean age 75 ± 6.5) underwent ...
Pushkarsky Ivan I Department of Bioengineering, California NanoSystems Institute, Jonsson Comprehensive Cancer Center, University of California Los Angeles, 420 Westwood Plaza, 5121 Engineering V, Box 951600, Los Angeles, California 90095, USA. - - 2014
In this highlight we present a snapshot of recent work using magnetic forces and particles to perform lab on a chip operations. Magnetic micro- & nanoparticles have been widely used for separations in cell biology & clinical diagnostics and as solid phase supports for reactions and chemical assays. Microscale approaches ...
Ayache Jad Bou JB Department of Radiology, Northwestern University, 737 North Michigan Avenue, Suite 1600, Chicago, IL 60611, - - 2014
Magnetic resonance (MR) angiographic techniques optimize the visualization of the vasculature at MR imaging. MR angiography has several advantages over Doppler ultrsonography and computed tomographic angiography, with adaptable protocols to answer specific clinical questions. Novel noncontrast MR angiographic techniques now enable assessment of the abdominopelvic vasculature without administration of gadolinium-based ...
Davarpanah Amir H AH Department of Radiology, Yale-New Haven Hospital, 20 York Street, New Haven, CT 06510, USA. Electronic address: - - 2014
MR imaging has proven to be a versatile modality in evaluation of the kidneys, collecting system, and adrenal glands. By performing a comprehensive MR examination, it is not only possible to accurately characterize cystic and solid lesions of the kidneys, as well as urothelial masses, but also to provide important ...
Choudhri Tanvir F TF Department of Neurosurgery, Icahn School of Medicine at Mount Sinai, New York, New - - 2014
The ability to identify a successful arthrodesis is an essential element in the management of patients undergoing lumbar fusion procedures. The hypothetical gold standard of intraoperative exploration to identify, under direct observation, a solid arthrodesis is an impractical alternative. Therefore, radiographic assessment remains the most viable instrument to evaluate for ...
Ehman Eric C EC From the Departments of Radiology (E.C.E., L.Y., A.M., M.M.S., D.J., M.R.B., C.H.M., D.M.H., J.G.F.) and Biomedical Engineering (D.S.L., D.J.B.), Mayo Clinic, 200 First St SW, Rochester, MN 55905; and Department of Radiology, Mayo Clinic, Scottsdale, Ariz (A.K.H., - - 2014
Most noise reduction methods involve nonlinear processes, and objective evaluation of image quality can be challenging, since image noise cannot be fully characterized on the sole basis of the noise level at computed tomography (CT). Noise spatial correlation (or noise texture) is closely related to the detection and characterization of ...
Hao Sun S Department of Radiology,PUMC Hospital,CAMS and PUMC,Beijing - - 2014
Objective To assess the upper urinary tract opacification and the diagnostic performance of one-bolus dual-source dual-energy CT urography(CTU)for painless hematuria. Methods Totally 205 patients who underwent dual-source dual-energy CTU for painless hematuria were enrolled in this study. CTU included true non-enhanced phase,dual-energy mode nephrographic phase,and FLASH mode excretory phase imaging ...
Stelter Lars L Klinik für Radiologie, Charité - Universitätsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353 Berlin, Germany. Electronic address: - - 2014
To estimate the additional value of an increased flip angle of 35° in late phase Gd-EOB-DTPA-enhanced magnetic resonance cholangiography, as compared to T2w-MRCP. 40 adult patients underwent Gd-EOB-DTPA enhanced MRI of the liver including a T2-weighted 3D TSE MRCP (T2w-MRCP) as well as a late phase T1-weighted THRIVE sequences applying ...
Harteela Markus M Department of Mathematics and Statistics, University of Turku , Turku , - - 2014
Background. Respiratory motion in positron emission tomography/computed tomography (PET/CT) causes underestimation of standardized uptake value (SUV) and variation of lesion volume, while PET and CT attenuation correction (CTAC) mismatch may introduce artefacts. The aim was to compare end-expiratory gating methods of PET and CTAC. Material and methods. Three methods named ...
Kritsaneepaiboon Supika S Department of Radiology, Faculty of Medicine, Prince of Songkla University, Hat Yai, 90110, - - 2014
Objectives: To compare multi-detector CT (MDCT) radiation doses between default settings and a revised dose reduction protocol and to determine whether the diagnostic confidence can be maintained with imaging quality made under the revised protocol in pediatric head, chest and abdominal CT studies. Methods: The study retrospectively reviewed head, chest, ...
Hennedige Tiffany T Department of Diagnostic Imaging, National University Hospital, Singapore, - - 2014
To determine the utility of non-contrast-enhanced CT (NC-CT) for improved detection of hyperenhancement in hepatocellular carcinomas (HCC). We performed a retrospective analysis on CT studies of 104 consecutive patients with 124 HCCs between October 2006 and December 2012. The enhancement of HCC was evaluated on quadriphasic CT: non-contrast (NC), arterial ...
Zouitina Yassine - - 2014
Transient visual disturbances constitute the most commonly reported neurological side effect during and immediately after sclerotherapy. A few studies, based on clinical and diffusion-weighted MRI assessments, have suggested that these transient neurological symptoms correspond to migraine with aura. Recently, it has been reported that brain magnetic resonance imaging can reveal ...
Vantine Paul R PR Department of Radiology, University of New Mexico Health Science Center, MSC10 5530, 1 University of New Mexico, Albuquerque, NM, 87131-0001, - - 2014
This work was conducted to determine whether non-contrast-enhanced CT (NECT) of patients with suspected acute aortic syndrome (AAS) can identify patients with a very low likelihood of a positive diagnosis. In the derivation phase, patients who received both NECT and contrast-enhanced CT angiography (CTA) for suspected AAS were identified. Two ...
Christian Eisha E Department of Neurosurgery, Keck School of Medicine of USC, Los Angeles, CA, USA. Electronic address: - - 2014
Although the concept of focused ultrasonography emerged over seventy years ago, the need for a craniectomy obviated its development as a noninvasive technology. Since then, advances in phased array transducers and magnetic resonance imaging technology have resurrected the ultrasound as a noninvasive therapeutic for a plethora of neurologic conditions ranging ...
Shin Kyung Eun KE Department of Radiology and Center for Imaging Science, Sungkyunkwan University School of Medicine, Seoul, - - 2014
Subcentimeter nodules without change in size during long-term follow-up period (for minimum 2 years) are assumed as benign lesions. However, the 2-year stability rule has not been fully verified so far and is still questionable. Thus, we aimed to retrospectively investigate long-term follow-up results for 2-year stable subcentimeter nodules at ...
Kang Do Hyun DH Department of Mechanical and Aerospace Engineering, WCU Program for Multiscale Mechanical Design, ‡Institute of Advanced Machinery and Design, Department of Mechanical and Aerospace Engineering, §Department of Agricultural Biotechnology, Center for Food and Bioconvergence, and Research Institute for Agriculture and Life Sciences, Seoul National University , Seoul, 151-742, Republic of - - 2014
Janus-compartmental alginate microbeads having two divided phases of sensory polydiacetylene (PDA) liposomes and magnetic nanoparticles were fabricated for facile sensory applications. The sensory liposomes are composed of PDA for label-free signal generation and 1,2-dipalmitoyl-sn-glycero-3-galloyl (DPGG) lipids whose galloyl headgroup has specific interactions with lead(II). The second phase having magnetic nanoparticles ...
Wintermark Max M Department of Radiology, Neuroradiology Division, University of Virginia, Charlottesville, VA, USA. Department of Radiology, Centre Hospitalier Universitaire Vaudois, Lausanne, - - 2014
Precise focusing is essential for transcranial MRI-guided focused ultrasound (TcMRgFUS) to minimize collateral damage to non-diseased tissues and to achieve temperatures capable of inducing coagulative necrosis at acceptable power deposition levels. CT is usually used for this refocusing but requires a separate study (CT) ahead of the TcMRgFUS procedure. The ...
Ventriglia Anna A Department of Radiology, University of Verona, P.le L. A. Scuro 10, 37134, Verona, Italy, - - 2014
To evaluate the magnetic resonance imaging (MRI) findings of solid pseudopapillary neoplasm (SPN) of the pancreas. From January 2006 to December 2013, 41 patients with SPN of the pancreas were retrospectively evaluated. Inclusion criteria were the execution of an MR examination and tumor resection with an histopathological evaluation at our ...
Freesmeyer Martin M Clinic of Nuclear Medicine, Jena University Hospital, Bachstrasse 18, 07740, Jena, Germany, - - 2014
To detect hypervascularized liver lesions, early dynamic (ED) (18)F-FDG PET may be an alternative when contrast-enhanced (CE) imaging is infeasible. This retrospective pilot analysis compared contrast between such lesions and liver parenchyma, an important objective image quality variable, in ED PET versus CE CT. Twenty-eight hypervascularized liver lesions detected by ...
Le Fur Yann Y CRMBM UMR 7339, Aix-Marseille Université, CNRS, 13385, Marseille, France, - - 2014
In a previous study, we have shown that modulus post-processing is a simple and efficient tool to both phase correct and frequency align magnetic resonance (MR) spectra automatically. Furthermore, this technique also eliminates sidebands and phase distortions. The advantages of the modulus technique have been illustrated in several applications to ...
Valdés Olmos R A RA Diagnostic Oncology, Department of Nuclear Medicine, Netherlands Cancer Institute - Antoni van Leuwenhoek Hospital Amsterdam, The Netherlands - - - 2014
The popularity gained by the sentinel lymph node (SLN) procedure in the last two decades did increase the interest of the surgical disciplines for other applications of radioguided surgery. An example is the gamma-probe guided localization of occult or difficult to locate neoplastic lesions. Such guidance can be achieved by ...
Kang Stella K SK 1 Department of Radiology, NYU Langone Medical Center, 550 First Ave, New York, NY - - 2014
OBJECTIVE. Solid renal masses are most often incidentally detected at imaging as small (≤ 4 cm) localized lesions. These lesions comprise a wide spectrum of benign and malignant histologic subtypes, but are largely treated with surgical resection given the limited ability of imaging to differentiate among them with consistency and ...
Guijian Liu L Key Laboratory of Viral Heart Diseases, Ministry of Public Health, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, - - 2014
Asymptomatic cerebral injury (ACI) detected by diffusion-weighted magnetic resonance imaging (MRI) following atrial fibrillation (AF) ablation has been reported recently. The purpose of this study was to provide an overview of the incidence of ACI detected by MRI following AF ablation and to explore the association between ablation technology and ...
Aoyagi Jun J Department of Pediatrics, Jichi Medical University, Tochigi, - - 2014
It has been established that enhanced computed tomography (CT) and (99m) Tc-dimercaptosuccinic acid renal scintigraphy ((99m) Tc-DMSA scintigraphy) used in conjunction with single-photon emission CT is a useful tool for the diagnosis of acute pyelonephritis (APN). The utility of non-enhanced magnetic resonance imaging (MRI), however, has not been investigated extensively ...
Takei Yasutaka Y Department of Radiology, Hamamatsu University - - 2014
We carried out a nationwide questionnaire survey of pediatric computed tomography (CT) in 339 facilities. Most facilities operated multi detector-row CT (MDCT), and over half operated 64, 128, 256 and 320-slice MDCT. In 32% of facilities, pediatric CT protocols were set taking image quality and dose into consideration. However, in ...
Battaglini Marco M Department of Medicine, Surgery and Neuroscience, University of Siena, Siena, - - 2014
To propose and evaluate a new automated method for the identification of new/enlarging multiple sclerosis (MS) lesions on subtracted images (SI). The subtraction of serially acquired images has shown great potential in assessing new/enlarging brain magnetic resonance imaging (MRI) lesions in MS patients. However, this approach relies on the manual ...
Izutsu Ken-Ichi KI National Institute of Health Sciences, Setagaya, Tokyo, 158-8501, Japan, - - 2014
The objective of this study was to determine how different techniques used during the freezing step of lyophilization affect morphology of the dried protein solids. Aqueous solutions containing recombinant human albumin, trehalose, and sodium phosphate buffer were dried after their freezing by shelf-ramp cooling, immersion in liquid nitrogen, or controlled ...
Tan WenLi W From the *Department of Radiology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, PR China; †Department of Radiology, and ‡Department of Neuropathology, Huashan Hospital, Fudan University, Shanghai, PR - - 2014
The purpose of this study was to characterize the magnetic resonance imaging (MRI), and computed tomographic (CT) findings in a series of 8 patients with papillary glioneuronal tumor (PGNT). The routine MRI (n = 8), DWI (n = 7), and CT (n = 4) of 8 PGNTs verified by pathologic ...
Sofue Keitaro K Division of Diagnostic Radiology, National Cancer Center Hospital, Tokyo, - - 2014
To compare diagnostic performance in the detection of colorectal liver metastases between 64-detector-row contrast-enhanced CT (CE-CT) alone and the combination of CE-CT and gadoxetic acid-enhanced MRI (EOB-MRI) at 3.0T, and to assess whether EOB-MRI in addition to CE-CT results in a change to initially planned operative strategy. A total of ...
Matsuda Megumi M Department of Radiology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, 791-0295, Japan, - - 2014
The purpose of this study was to elucidate the incidence and risk factors for the progression of hyperintense nodules, observed in the hepatobiliary phase of gadolinium-ethoxybenzyl-diethylenetriamine pentaacetic acid-enhanced magnetic resonance imaging (Gd-EOB-DTPA-enhanced MRI), to hypervascular hepatocellular carcinoma (HCC). Hypovascular nodules (n = 157) showing hyperintensity in the hepatobiliary phase of Gd-EOB-DTPA-enhanced MRI ...
Honda Yukiko Y Department of Diagnostic Radiology, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8551, - - 2014
We compared the detectability of liver metastases on 2- and 3-phase images using robust statistical methods. Nine radiologists evaluated unenhanced CT plus portal venous phase (2-phase) images and 2-phase plus hepatic arterial phase (HAP) (3-phase) images. Our study included 54 patients with primary malignant tumors who underwent 3-phase hepatic dynamic ...
Reiter Michael J MJ Department of Radiology, Brooke Army Medical Center, 3551 Roger Brooke Drive, San Antonio, TX, 78234, USA, - - 2014
Solid adnexal masses, while less common than their cystic counterparts, may present a challenge for radiologists given the wide range of histologic entities that occur in this region. Pelvic masses, especially when large, can seem overwhelming at first but application of an algorithmic approach allows for more confident assessment. This ...
Lipsman Nir N Division of Neurosurgery, University Health Network, University of Toronto, 399 Bathurst Street, 4W-431, Toronoto, M5T 2S8, Canada, - - 2014
The ability to focus acoustic energy through the intact skull on to targets millimeters in size represents an important milestone in the development of neurotherapeutics. Magnetic resonance-guided focused ultrasound (MRgFUS) is a novel, noninvasive method, which-under real-time imaging and thermographic guidance-can be used to generate focal intracranial thermal ablative lesions ...
Jang Kyung Mi KM Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of - - 2014
With the advent of 3-T magnetic resonance imaging (MRI) and diffusion-weighted imaging (DWI), many subcentimeter hepatic nodules have been frequently detected in patients with chronic liver disease, and the prediction of subcentimeter nodules that progress to hypervascular hepatocellular carcinoma (HCC) is important. To reveal the imaging features of subcentimeter hypointense ...
Tian T-T TT Department of Radiology, Su Bei People's Hospital of Yangzhou University, No. 98, Nan Tong West Road, Yangzhou, 225009, Jiangsu, People's Republic of China, - - 2014
The purpose of this study was to investigate the imaging characteristics of solitary fibrous tumor (SFT) in the abdomen and pelvis. Nine cases of SFT confirmed by surgery and pathology were retrospectively analyzed in terms of computed tomography (CT, eight cases) and magnetic resonance imaging (MRI, one case). SFT were ...
Kramer Manuel - - 2014
The aim of the study was to compare the detectability of neck vessels with contrast enhanced magnetic resonance angiography (MRA) in the setting of a whole-body MRA and multislice computed tomography angiography (CTA) for preoperative vascular mapping of head and neck. In 20 patients MRA was performed prior to microvascular ...
Oktay Ayse Betul AB Department of Computer Engineering, Istanbul Medeniyet University, Istanbul, Turkey. Electronic address: - - 2014
This paper presents a novel method for the automated diagnosis of the degenerative intervertebral disc disease in midsagittal MR images. The approach is based on combining distinct disc features under a machine learning framework. The discs in the lumbar MR images are first localized and segmented. Then, intensity, shape, context, ...
Lee Mi Hee MH Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, - - 2014
To determine the computed tomographic (CT) findings of acute pelvic inflammatory disease (PID). This retrospective, single-institution case-control study was approved by our institutional review board, and the informed consent was waived owing to the retrospective nature of the study. CT images of 32 women with clinically proven acute PID and ...
Fingerle Alexander A AA From the Department of Radiology, Klinikum rechts der Isar, Technische Universität München, Ismaningerstr 22, 81675 Munich, Germany (A.A.F., D.M., E.J.R., P.B.N.); and Department of Physics and Institute of Medical Engineering, Technische Universität München, Garching, Germany (M.W., J.H., D.H., - - 2014
Purpose To determine if grating-based x-ray phase-contrast computed tomography (CT) can allow differentiation of simulated simple, protein-rich, hemorrhagic, and enhancing cystic renal lesions in an in vitro phantom. Materials and Methods An in vitro phantom specifically designed to simulate simple, protein-rich, hemorrhagic, and enhancing renal cysts was scanned with an ...
Lindsay Aaron J AJ Department of Radiology, Children's Hospital Colorado, Affiliated with the University of Colorado Denver School of Medicine, 13123 East 16th Ave, B125, Denver, CO, 80045, USA, - - 2014
Ganglioglioma (GG) is a rare pediatric brain tumor (1-4 %) with neoplastic glial and neuronal cells. Posterior fossa GGs (PF GGs) occur less frequently than supratentorial GGs (ST GGs). The BRAF V600E mutation has been reported in GGs and carries therapeutic implications. We compare the presenting symptoms, magnetic resonance imaging, BRAF ...
Kita Ryuichi R Department of Gastroenterology and Hepatology, Osaka Red Cross - - 2014
We report three cases of resected hepatocellular carcinomas with nodules showing different signal intensities in the hepatobiliary phase of gadolinium ethoxybenzyl diethylenetriamine pentaacetic acid-enhanced MRI (EOB-MRI). One case involved a nodule-in-nodule type hepatocellular carcinoma that showed high signal intensity for the outer tumor and low intensity for the inner tumor ...
Madelin Guillaume G New York University Langone Medical Center, Department of Radiology, Center for Biomedical Imaging, New York, NY 10016, - - 2014
Sodium NMR spectroscopy and MRI have become popular in recent years through the increased availability of high-field MRI scanners, advanced scanner hardware and improved methodology. Sodium MRI is being evaluated for stroke and tumor detection, for breast cancer studies, and for the assessment of osteoarthritis and muscle and kidney functions, ...
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