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https://www.readbyqxmd.com/read/29028279/liver-elastography-malignancy-prediction-lemp-score-for-noninvasive-characterization-of-focal-liver-lesions
#1
Ivica Grgurevic, Tomislav Bokun, Nermin N Salkic, Boris Brkljacic, Mirjana Vukelić-Markovic, Tajana Stoos-Veic, Gorana Aralica, Mislav Rakic, Tajana Filipec-Kanizaj, Annalisa Berzigotti
BACKGROUND & AIMS: To analyse elastographic characteristics of focal liver lesions (FLL)s and diagnostic performance of real-time two-dimensional shear-wave elastography (RT-2D-SWE) in order to differentiate benign and malignant FLLs. PATIENTS AND METHODS: Consecutive patients diagnosed with FLL by abdominal ultrasound (US) underwent RT-2D-SWE of FLL and non-infiltrated liver by intercostal approach over the right liver lobe. The nature of FLL was determined by diagnostic work-up, including at least one contrast-enhanced imaging modality (MDCT/MRI), check-up of target organs when metastatic disease was suspected and FLL biopsy in inconclusive cases...
October 13, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/29018236/automatic-digital-quantification-of-bone-marrow-myeloma-volume-in-appendicular-skeletons-clinical-implications-and-prognostic-significance
#2
Yuki Nishida, Shinya Kimura, Hideaki Mizobe, Junta Yamamichi, Kensuke Kojima, Atsushi Kawaguchi, Manabu Fujisawa, Kosei Matsue
Multiple myeloma (MM) is a clonal plasma cell disorder originating in bone marrow. Whole body low-dose multidetector CT (MDCT) can depict bone marrow infiltration by myeloma cells into the adipose-rich fatty marrow of the appendicular skeleton. However, automated and objective volume measurement of bone marrow infiltration has not been established, and its clinical relevance remains unclear. We therefore developed novel CT post-processing software (MABLE software) and measured the total sum of CT values (cumulative CT value, cCTv) representing bone marrow infiltration, by combining volume and voxel-based CT values...
October 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29017748/transcatheter-aortic-valve-implantation-in-patients-with-a-large-aortic-annulus
#3
Peter Barr, John Ormiston, Jim Stewart, Parma Nand, Tharumenthiran Ramanathan, Mark Webster
BACKGROUND: As the indications for transcatheter aortic valve implantation (TAVI) have expanded, so to have the demands on interventionists to allow as many patients to access this technology as possible. METHODS: We retrospectively reviewed our TAVI database for patients who had received a 29mm SAPIEN 3 valve despite having an annular area greater than the manufacturer-recommended upper limit of 683mm(2), as determined by multi-detector computed tomography (MDCT)...
September 28, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28992935/initial-experience-in-the-treatment-of-borderline-resectable-pancreatic-adenocarcinoma
#4
Juli Busquets, Juan Fabregat, Helena Verdaguer, Berta Laquente, Núria Pelaez, Luis Secanella, David Leiva, Teresa Serrano, María Cambray, Rafael Lopez-Urdiales, Emilio Ramos
INTRODUCTION: A borderline resectable group (APBR) has recently been defined in adenocarcinoma of the pancreas. The objective of the study is to evaluate the results in the surgical treatment after neoadjuvancy of the APBR. METHOD: Between 2010 and 2014, we included patients with APBR in a neoadjuvant and surgery protocol, staged by multidetector computed tomography (MDCT). Treatment with chemotherapy was based on gemcitabine and oxaliplatin. Subsequently, MDCT was performed to rule out progression, and 5-FU infusion and concomitant radiotherapy were given...
October 6, 2017: Cirugía Española
https://www.readbyqxmd.com/read/28988806/3d-assessment-of-damaged-bicycle-helmets-and-corresponding-craniomaxillo-mandibular-skull-injuries-a-feasibility-study
#5
Gustaaf J C van Baar, Muhammad Ruslin, Maureen van Eijnatten, George K Sándor, Tymour Forouzanfar, Jan Wolff
OBJECTIVES: In the Netherlands, cyclists continue to outnumber other road users in injuries and deaths. The wearing of bicycle helmets is not mandatory in the Netherlands even though research has shown that wearing bicycle helmets can reduce head and brain injuries by up to 88%. Therefore, the aim of this study was to assess the feasibility of using 3D technology to evaluate bicycle-related head injuries and helmet protection. METHODS: Three patients who had been involved in a bicycle accident while wearing a helmet were subjected to multi-detector row computed tomography (MDCT) imaging after trauma...
September 29, 2017: Injury
https://www.readbyqxmd.com/read/28988444/usefulness-of-epicardial-impedance-evaluation-for-epicardial-mapping-and-determination-of-epicardial-ablation-site-for-ventricular-tachycardia-a-pilot-study
#6
Takeshi Kitamura, Seiji Fukamizu, Satoshi Miyazawa, Iwanari Kawamura, Rintaro Hojo, Yuya Aoyama, Mitsuhiro Nishizaki, Harumizu Sakurada, Masayasu Hiraoka
BACKGROUND: During epicardial mapping, determination of appropriate ablation sites in low voltage areas (LVA) is challenging because of large epicardial areas covered by adipose tissue. OBJECTIVE: To evaluate the impedance difference between epicardial fat and the epicardial LVA using multiple detector computed tomography (MDCT). METHODS: We enrolled patients who underwent ventricular tachycardia (VT) ablation via the epicardial approach after endocardial ablation failure...
October 8, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28987695/primary-benign-liver-lesions
#7
REVIEW
Luigi Grazioli, Roberta Ambrosini, Barbara Frittoli, Marco Grazioli, Mario Morone
Benign focal liver lesions can origin from all kind of liver cells: hepatocytes, mesenchymal and cholangiocellular line. Their features at imaging may sometimes pose difficulties in differential diagnosis with malignant primary and secondary lesions. In particular, the use of MDCT and MRI with extracellular and hepatobiliary Contrast Agents may non invasively help in correct interpretation and definition of hepatocellular or mesenchymal and inflammatory nature, allowing to choose the best treatment option. The peculiarities of main benign liver lesions at US, CT and MRI are described, with special attention to differential diagnosis and diagnostic clues...
October 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28986917/optimization-of-data-acquisition-in-axial-ct-under-the-framework-of-sampling-on-lattice-for-suppression-of-aliasing-artifacts-with-algorithmic-detector-interlacing
#8
Huiqiao Xie, Xiangyang Tang
PURPOSE: We present the methodology for analyzing and optimizing the sampling structure of projection data acquisition in axial multi-detector CT (MDCT) and cone beam CT (CBCT) under the framework of sampling on lattice. Specifically, we propose and evaluate the scheme of interlaced detector cell binning for suppression of longitudinal aliasing artifacts. In addition, we investigate the proposed scheme's capability of mitigating shift-variation in spatial resolution and possibility of improving CB image reconstruction accuracy...
October 7, 2017: Medical Physics
https://www.readbyqxmd.com/read/28982888/accurate-estimation-of-functional-liver-volume-using-gd-eob-dtpa-mri-compared-to-mdct-99m-tc-spect-fusion-imaging
#9
Yuji Morine, Chinbold Enkhbold, Satoru Imura, Tetsuya Ikemoto, Syuichi Iwahashi, Y U Saito, Shinichiro Yamada, Tohru Utsunomiya, Mitsuo Shimada
BACKGROUND/AIM: We assessed the utility of dynamic magnetic resonance imaging (MRI) with gadoxetate-ethoxybenzyl-diethylenetriamine penta-aceticpenta-acetic acid (Gd-EOB-DTPA) (EOB-MRI) for estimating functional liver volume compared to (99m)Tc-galactosyl albumin single-photon-emission computed tomography ((99m)Tc-GSA SPECT). PATIENTS AND METHODS: Regional functional liver volume (left lateral, medial, right anterior, right posterior) of 58 hepatectomized patients was assessed using EOB-MRI and (99m)Tc-GSA SPECT, and compared to the actual liver volume with MDCT-3D volumetry...
October 2017: Anticancer Research
https://www.readbyqxmd.com/read/28981358/distinguishing-chronic-thromboembolic-pulmonary-hypertension-from-other-causes-of-pulmonary-hypertension-using-ct
#10
Alexandra Grosse, Claudia Grosse, Irene M Lang
OBJECTIVE: The purpose of this study was to discern imaging findings that separate chronic thromboembolic pulmonary hypertension (CTEPH) from other causes of pulmonary hypertension (PH). MATERIALS AND METHODS: A total of 143 patients with proven PH (group 1, pulmonary arterial hypertension; group 2, PH due to left heart disease; group 3, PH due to lung disease; group 4, CTEPH; and group 5, PH due to unclear or multifactorial mechanisms) underwent MDCT angiography...
October 5, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28974326/relationships-between-periventricular-epicardial-adipose-tissue-accumulation-coronary-microcirculation-and-left-ventricular-diastolic-dysfunction
#11
Koki Nakanishi, Shota Fukuda, Atsushi Tanaka, Kenichiro Otsuka, Haruyuki Taguchi, Kenei Shimada
BACKGROUND: Obesity is related to left ventricular (LV) diastolic dysfunction, although its pathophysiological mechanism remains unclear. Epicardial adipose tissue (EAT) is an ectopic fat with paracrine effects on coronary circulation and myocardium. We hypothesized that left ventricle-specific (periventricular) EAT may deteriorate diastolic function by impairing coronary microcirculation. METHODS: In protocol 1, 74 patients without obstructive narrowing of the left anterior descending artery on multidetector computed tomography (MDCT) underwent coronary flow reserve (CFR) examination to evaluate the relationship between EAT and coronary microcirculation...
August 7, 2017: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/28966320/association-of-dyslipidemia-and-sex-with-coronary-artery-calcium-assessed-by-coronary-computed-tomography-angiography
#12
Masahiko Asami, Kyohei Yamaji, Jiro Aoki, Shuzou Tanimoto, Mika Watanabe, Yu Horiuchi, Koichi Furui, Nahoko Kato, Kazuhiro Hara, Kengo Tanabe
Previous studies reporting that statin increases coronary artery calcium (CAC) were conducted exclusively on patients with statin as a prevention, regardless of the presence or absence of dyslipidemia. The impact of sex on CAC has not been fully evaluated. We aimed to determine the association of dyslipidemia and sex with CAC using 320-row multi-detector computed tomography (MDCT).Of the 356 consecutive patients who underwent coronary MDCT, 251 patients were enrolled, after excluding those with prior stenting and/or coronary bypass grafting or images showing motion artifacts...
September 30, 2017: International Heart Journal
https://www.readbyqxmd.com/read/28942654/endoscopic-ultrasound-versus-multidetector-computed-tomography-in-preoperative-gastric-cancer-staging
#13
Marta Cimavilla Román, Carlos de la Serna Higuera, Luz Andrea Loza Vargas, César Benito Fernández, Jesús Barrio Andrés, Beatriz Madrigal Rubiales, Gabriel Fernández Pérez, Manuel Pérez-Miranda
INTRODUCTION: Endoscopic ultrasonography (EUS) is the gold standard technique in loco-regional staging of gastric adenocarcinoma (GAC). Nevertheless, the introduction of multidetector-row computed tomography (MDCT) allows accurate studies to be performed. OBJECTIVE: To compare the diagnostic yield of EUS and MDCT in loco-regional preoperative staging of gastric adenocarcinoma. MATERIAL AND METHODS: This was a retrospective and comparative study of all surgical patients with GAC and preoperative staging by EUS and 64-row MDCT...
September 25, 2017: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/28936758/mucinous-cystic-neoplasms-of-the-pancreas-high-resolution-cross-sectional-imaging-features-with-clinico-pathologic-correlation
#14
Alejandro Garces-Descovich, Kevin Beker, Manuel Castillo-Angeles, Alexander Brook, Elena Resnick, Shweta Shinagare, Robert M Najarian, Koenraad J Mortele
PURPOSE: To describe the high-resolution cross-sectional (MDCT/MRI) features of mucinous cystic neoplasms (MCN) of the pancreas with clinico-pathologic correlation; to identify imaging predictors of high-grade dysplasia/carcinoma; and to estimate MCN growth rate. MATERIALS AND METHODS: Thirty-two women (mean age: 46; range, 25-79 years) with resected MCN who underwent preoperative MDCT (n = 20) or MRI (n = 12) examinations over a 14-year period were included...
September 21, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28932697/thoracic-wall-trauma-misdiagnosed-lesions-on-radiographs-and-usefulness-of-ultrasound-multidetector-computed-tomography-and-magnetic-resonance-imaging
#15
REVIEW
Xavier Tomas, Catherine Facenda, Nuno Vaz, Edgar Augusto Castañeda, Montserrat Del Amo, Ana Isabel Garcia-Diez, Jaime Pomes
Blunt injuries to the chest wall are an important chapter on emergency room (ER) departments, being the third most common injuries in trauma patients which ominous complications could appear. This article describes different types of traumatic events affecting the chest wall, which maybe misdiagnosed with conventional X-ray. Special emphasis has been done in computed tomography (CT) and multidetector CT (MDCT) imaging. This technique is considered the "gold-standard" for those traumatic patients, due to its fast acquisition covering the whole area of interest in axial plane, reconstructing multiplanar (2D, 3D) volume-rendered images with a superb quality and angiographic CT capabilities for evaluating vascular damage...
August 2017: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/28925490/multi-detector-spiral-ct-diagnosis-of-common-bile-duct-ampullary-carcinoma
#16
D-Z Zhao, Y Guo, Y-P Sun, H-M Liu, Z Zhang, Q-L Ma, Y-S Wang, C-L Chen
OBJECTIVE: The aim of this project was to study the imaging characteristics of multi-detector CT (MDCT) in different types of malignant tumor in the common bile duct ampulla. PATIENTS AND METHODS: We examined 30 cases of pancreatic head cancer, 35 of terminal cholangiocarcinoma, 26 of ampullary carcinoma, and 40 of benign lesions, all confirmed by pathology. We used 64-slice spiral CT plain scan and multi-phase enhanced scan with multi-planar reconstruction (MPR) and curved planar reconstruction (CPR) post-processing to obtain three-dimensional images...
August 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28923629/multidetector-computed-tomography-findings-of-splenic-artery-aneurysms-associated-with-liver-involvement-in-wilson-s-disease
#17
M Özdemir, R S Ökten, F Küçükay, M Ereren, F A E Özdemir, M Akdoğan, S Kaçar, E B Bostancı
PURPOSE: The purposed of this study was to examine the incidence and multidetector computed tomography (MDCT) findings of splenic artery aneurysms (SAAs) in patients with liver involvement related to Wilson's disease. METHODS: Eighteen patients with clinically and/or pathologically proven Wilson's disease underwent triphasic MDCT. Arterial, portal, and equilibrium phase images were obtained. The analysis of the CT features included the presence and characteristics of the SAA, splenic artery (SA) diameter, the presence and size of the portosystemic collateral vessels, and spleen volume...
October 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28917065/diagnosis-of-mesenteric-panniculitis-in-the-multi-detector-computed-tomography-era-association-with-malignancy-and-surgical-history
#18
Waleed S Mahafza, Karam A Manzalawi, Azza A Gharaibeh, Omar W Khayat, Awni Shahait, Malik E Juweid
OBJECTIVES: To assess the prevalence and associations of mesenteric panniculitis (MP) using multi-detector CT (MDCT). METHODS: This retrospective study included 4758 consecutive patients who underwent abdomino-pelvic MDCT between January 2012 and December 2014 at Jordan University Hospital, Amman, Jordan. Radiological database was searched for MP diagnosis and patients with suspected MP were re-evaluated by an experienced radiologist to confirm the diagnosis. Data on all patients with confirmed MP diagnosis were subsequently collected and analyzed...
October 2017: Saudi Medical Journal
https://www.readbyqxmd.com/read/28910264/estimation-and-comparison-of-the-radiation-effective-dose-during-coronary-computed-tomography-angiography-examinations-on-single-source-64-mdct-and-dual-source-128-mdct
#19
Daryoush Khoramian, Soroush Sistani
GOAL: To estimate and compare the radiation dose associated with coronary computed tomography angiography (CCTA) examinations on two multi-detector CT scanners (MDCT), 64-MDCT and 128-MDCT, in daily practice. METHODS: Scan parameters of 90 patients undergoing retrospective electrocardiographic gating spiral CCTA exam were recorded during a period on a single-source 64-MDCT and a dual-source 128-MDCT, and average scan parameters were derived that were used for dosimetry...
September 14, 2017: Journal of Radiological Protection: Official Journal of the Society for Radiological Protection
https://www.readbyqxmd.com/read/28905364/a-clinical-risk-score-for-pulmonary-artery-thrombosis-during-acute-chest-syndrome-in-adult-patients-with-sickle-cell-disease
#20
Anaïs Winchenne, Jérôme Cecchini, Jean-François Deux, Nicolas De Prost, Keyvan Razazi, Guillaume Carteaux, Frederic Galacteros, Anoosha Habibi, Pablo Bartolucci, Giovanna Melica, Mehdi Khellaf, Marc Michel, Bernard Maitre, Armand Mekontso Dessap
Pulmonary artery thrombosis (PAT) is involved in lung vascular dysfunction during acute chest syndrome (ACS) complicating sickle cell disease (SCD). No clinical score is available to identify patients eligible for multi-detector computed tomography (MDCT) angiography during ACS. This retrospective study aimed to develop a risk score for PAT during ACS (PAT-ACS risk score). Patients with SCD were investigated by MDCT during ACS. A logistic regression was performed to determine independent risks factors for PAT and to build the PAT-ACS risk score...
September 14, 2017: British Journal of Haematology
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