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https://www.readbyqxmd.com/read/29456862/thin-laryngeal-foreign-bodies-in-infants-diagnostic-potential-of-mdct
#1
Antonella Concerto, Marco Cavallaro, Carmela Visalli, Anna Maria Bagnato, Ugo Barbaro, Ignazio Salamone
A laryngeal foreign body (FB) is a significant, life-threatening event in the paediatric population. Incomplete airways obstruction by a thin, laminar, radiolucent FB lodged in the glottis or supraglottis is a rare occurrence that may present with non-specific symptoms, absence of chest findings, and normal radiographic investigations, resulting in misdiagnosis, delay in diagnosis, or prolonged recovery. We report two cases of 10-month-old male infants, each with a thin radiolucent FB lodged between the vocal folds that was detected with low-dose multidetector computed tomography (MDCT) and thin-slice reconstruction...
April 2018: Respirology Case Reports
https://www.readbyqxmd.com/read/29456558/prevalence-of-lymph-node-and-maximum-short-axis-in-traumatic-patients
#2
Mehdi Karami, Maryam Taki
Background: Normal size of mesenteric lymph nodes has not been well evaluated, as these lymph nodes are small but may be seen frequently in computed tomography (CT). The aim of this study is to determine the prevalence of mesenteric lymph nodes at root of mesentery and mesentery itself. Materials and Methods: This is a cross-sectional study on traumatic patients with normal multidetector CT (MDCT) referred to Al-Zahra Hospital in 2014-2016. The largest short axis of lymph nodes was recorded...
2018: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
https://www.readbyqxmd.com/read/29444912/analysis-of-airway-pathology-in-copd-using-a-combination-of-computed-tomography-micro-computed-tomography-and-histology
#3
Naoya Tanabe, Dragoş M Vasilescu, Miranda Kirby, Harvey O Coxson, Stijn E Verleden, Bart M Vanaudenaerde, Daisuke Kinose, Yasutaka Nakano, Peter D Paré, James C Hogg
The small conducting airways are the major site of obstruction in chronic obstructive pulmonary disease (COPD). This study examined small airway pathology using a novel combination of multidetector row computed tomography (MDCT), micro-computed tomography (microCT) and histology.Airway branches visible on specimen MDCT were counted and the dimensions of the third- to fifth-generation airways were computed, while the terminal bronchioles (designated TB), preterminal bronchioles (TB-1) and pre-preterminal bronchioles (TB-2) were examined with microCT and histology in eight explanted lungs with end-stage COPD and seven unused donor lungs that served as controls...
February 2018: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/29439461/early-diagnosis-to-improve-the-poor-prognosis-of-pancreatic-cancer
#4
REVIEW
Masataka Kikuyama, Terumi Kamisawa, Sawako Kuruma, Kazuro Chiba, Shinya Kawaguchi, Shuzo Terada, Tatsunori Satoh
Pancreatic cancer (PC) has a poor prognosis due to delayed diagnosis. Early diagnosis is the most important factor for improving prognosis. For early diagnosis of PC, patients with clinical manifestations suggestive of PC and high risk for developing PC need to be selected for examinations for PC. Signs suggestive of PC (e.g., symptoms, diabetes mellitus, acute pancreatitis, or abnormal results of blood examinations) should not be missed, and the details of risks for PC (e.g., familial history of PC, intraductal mucin producing neoplasm, chronic pancreatitis, hereditary pancreatitis, or life habit) should be understood...
February 11, 2018: Cancers
https://www.readbyqxmd.com/read/29435741/the-pivotal-role-of-imaging-in-tavr-procedures
#5
REVIEW
Caroline Bleakley, Mark J Monaghan
PURPOSE OF REVIEW: Transcatheter aortic valve replacement (TAVR) is underpinned by an array of imaging techniques designed to not only select an appropriately sized implant but also to identify potential obstacles to procedural success. This review presents currently important aspects of TAVR imaging, describing the salient features of each modality as well as recent developments in the field. RECENT FINDINGS: The latest data on TAVR outcomes reflects the increasing experience of operators and the significant role of pre-procedural imaging...
February 12, 2018: Current Cardiology Reports
https://www.readbyqxmd.com/read/29434740/a-pilot-study-of-a-cardiovascular-virtual-endoscopy-system-based-on-multi-detector-computed-tomography-in-diagnosing-tetralogy-of-fallot-in-pediatric-patients
#6
Li-Ping Yao, Li Zhang, Ju Mei, Fang-Bao Ding, Hui-Ming Li, Ming Ding, Xin Yang, Xiao-Ming Li, Kun Sun
The present study aimed to investigate the capabilities of the cardiovascular virtual endoscopy (VE) system in diagnosing tetralogy of Fallot (TOF) and performing measurements. A total of 37 patients underwent two-dimensional echocardiography (2-DE) and multi-detector computed tomography (MDCT) examinations. The obtained MDCT images were applied to a cardiovascular VE system. Diagnostic time by VE was first studied and compared with MDCT. Subsequently, with surgical findings as the ground truth, the capabilities of VE, 2-DE and MDCT in diagnosing TOF and its complications were investigated...
February 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29427821/image-based-criteria-to-identify-the-presence-of-epicardial-arrhythmogenic-substrate-in-patients-with-transmural-myocardial-infarction
#7
David Soto-Iglesias, Juan Acosta, Diego Penela, Juan Fernández-Armenta, Mario Cabrera, Mikel Martínez, Francesca Vassanelli, Alejandro Alcaine, Markus Linhart, Beatriz Jáuregui, Elena Efimova, Rosario J Perea, Susana Prat-González, José T Ortiz-Pérez, Xavier Bosch, Luis Mont, Oscar Camara, Antonio Berruezo
BACKGROUND: Patients with transmural myocardial infarction (MI) who undergo endocardial-only substrate ablation are at an increased risk of ventricular tachycardia (VT) recurrence. Late gadolinium-enhanced cardiac magnetic resonance (LGE-CMR) could be used to assess infarct transmurality (IT). However, the degree of IT associated to epicardial arrhythmogenic substrate (AS) has not been determined. OBJECTIVE: To determine the degree of IT observed in LGE-CMR and multi-detector computed tomography (MDCT) that predicts the presence of epicardial AS...
February 7, 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/29422538/dose-and-slice-thickness-evaluation-with-nmag-gel-dosimeters-in-computed-tomography
#8
Chun-Chao Chuang, Jay Wu
Computed tomography (CT) has been widely used in clinical diagnosis. It is important to estimate radiation dose and perform image quality assurance procedures for CT scans. In this study, nMAG gel dosimeters were used to simultaneously measure the 300-mm weighted CT dose index (CTDI) and slice sensitivity profile (SSP) for multiple detector CT (MDCT). Magnetic resonance imaging (MRI) was performed on the irradiated gel to create R2‒dose response curves for the tube voltages of 120 and 140 kVp. The gel dosimeters were loaded in three home-made cylindrical phantoms to obtain CTDI100 and CTDI300...
February 8, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29413233/adult-to-adult-living-donor-liver-transplantation-preoperative-survey-using-mdct-a-single-medical-center-experience-in-taiwan
#9
Te-Cheng Su, Siu-Wan Hung, Ming-Cheng Liu, Yen-Ting Lin, Jeon-Hor Chen, Shao-Bin Cheng, Clayton Chi-Chang Chen
This study evaluated multi-detector computed tomography (MDCT) scans performed on potential living donors for adult-to-adult liver transplantation (LDLT), with the aim of identifying significant findings that could be used to exclude potential transplantation donors. We retrospectively reviewed the medical records of 151 consecutive potential adult donors for LDLT from May 2007 to January 2015. Liver parenchyma steatosis, focal hepatic mass or intraabdominal malignancy, vascular variations, and donor liver volume were evaluated via MDCT...
February 2018: Kaohsiung Journal of Medical Sciences
https://www.readbyqxmd.com/read/29402376/pet-panc-multicentre-prospective-diagnostic-accuracy-and-health-economic-analysis-study-of-the-impact-of-combined-modality-18fluorine-2-fluoro-2-deoxy-d-glucose-positron-emission-tomography-with-computed-tomography-scanning-in-the-diagnosis-and-management-of
#10
Paula Ghaneh, Robert Hanson, Andrew Titman, Gill Lancaster, Catrin Plumpton, Huw Lloyd-Williams, Seow Tien Yeo, Rhiannon Tudor Edwards, Colin Johnson, Mohammed Abu Hilal, Antony P Higginson, Tom Armstrong, Andrew Smith, Andrew Scarsbrook, Colin McKay, Ross Carter, Robert P Sutcliffe, Simon Bramhall, Hemant M Kocher, David Cunningham, Stephen P Pereira, Brian Davidson, David Chang, Saboor Khan, Ian Zealley, Debashis Sarker, Bilal Al Sarireh, Richard Charnley, Dileep Lobo, Marianne Nicolson, Christopher Halloran, Michael Raraty, Robert Sutton, Sobhan Vinjamuri, Jonathan Evans, Fiona Campbell, Jon Deeks, Bal Sanghera, Wai-Lup Wong, John P Neoptolemos
BACKGROUND: Pancreatic cancer diagnosis and staging can be difficult in 10-20% of patients. Positron emission tomography (PET)/computed tomography (CT) adds precise anatomical localisation to functional data. The use of PET/CT may add further value to the diagnosis and staging of pancreatic cancer. OBJECTIVE: To determine the incremental diagnostic accuracy and impact of PET/CT in addition to standard diagnostic work-up in patients with suspected pancreatic cancer...
February 2018: Health Technology Assessment: HTA
https://www.readbyqxmd.com/read/29400694/all-plugged-up-noninvasive-mucus-score-to-assess-airway-dysfunction-in-asthma
#11
Steve N Georas
Asthma is remarkably heterogeneous, and there are multiple underlying inflammatory pathways and structural airway abnormalities that lead to symptomatic disease. Consequently, a current challenge in the field is to precisely characterize different types of asthma, with the goal of developing personalized approaches to therapy. In the current issue of the JCI, Dunican et al. developed a noninvasive way to assess airway dysfunction in asthma by measuring mucus accumulation using multidetector computed tomography (MDCT) and found that mucus plugging of small airways was remarkably common in subjects with severe asthma...
February 5, 2018: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29400693/mucus-plugs-in-patients-with-asthma-linked-to-eosinophilia-and-airflow-obstruction
#12
Eleanor M Dunican, Brett M Elicker, David S Gierada, Scott K Nagle, Mark L Schiebler, John D Newell, Wilfred W Raymond, Marrah E Lachowicz-Scroggins, Selena Di Maio, Eric A Hoffman, Mario Castro, Sean B Fain, Nizar N Jarjour, Elliot Israel, Bruce D Levy, Serpil C Erzurum, Sally E Wenzel, Deborah A Meyers, Eugene R Bleecker, Brenda R Phillips, David T Mauger, Erin D Gordon, Prescott G Woodruff, Michael C Peters, John V Fahy
BACKGROUND: The link between mucus plugs and airflow obstruction has not been established in chronic severe asthma, and the role of eosinophils and their products in mucus plug formation is unknown. METHODS: In clinical studies, we developed and applied a bronchopulmonary segment-based scoring system to quantify mucus plugs on multidetector computed tomography (MDCT) lung scans from 146 subjects with asthma and 22 controls, and analyzed relationships among mucus plug scores, forced expiratory volume in 1 second (FEV1), and airway eosinophils...
February 5, 2018: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29395108/studying-the-complications-of-bariatric-surgery-with-intravenous-contrast-enhanced-multidetector-computed-tomography
#13
C Morandeira, M V Bárcena, A Bilbao, M Pérez, A M Ibáñez, M Isusi, G Lecumberri
OBJECTIVE: To review the complications of bariatric surgery and their diagnosis with intravenous contrast-enhanced multidetector computed tomography (MDCT). MATERIAL AND METHODS: We retrospectively studied all patients who underwent gastric bypass or sleeve gastrectomy at our center during 2013 or 2014. We classified complications into early complications (appearing within 30 days of the intervention) and late complications. RESULTS: We reviewed 155 cases and found 24 complications in 22 patients: 16 early complications (7 intraperitoneal hematomas, 5 anastomotic dehiscences, 2 intestinal obstructions, and 2 external hernias) and 8 late complications (3 internal hernias, 3 intestinal perforations, and 2 marginal ulcers)...
January 29, 2018: Radiología
https://www.readbyqxmd.com/read/29392433/impact-of-3d-printing-technology-on-comprehension-of-surgical-anatomy-of-retroperitoneal-tumor
#14
Tianyou Yang, Shuwen Lin, Tianbao Tan, Jiliang Yang, Jing Pan, Chao Hu, Jiahao Li, Yan Zou
OBJECTIVES: To investigate the impact of 3D printed model on understanding of surgical anatomy of retroperitoneal tumor. MATERIALS AND METHODS: Three-dimensional model was printed, based on multi-detectors computed tomography (MDCT) of a retroperitoneal tumor. Participants (10 students, 10 residents and 10 surgeons) were asked to identify vasculatures which were important in resection of the tumor, after viewing MDCT images, 3D visualization model and 3D printed model, respectively...
February 1, 2018: World Journal of Surgery
https://www.readbyqxmd.com/read/29388052/imaging-of-non-neoplastic-duodenal-diseases-a-pictorial-review-with-emphasis-on-mdct
#15
REVIEW
Sergi Juanpere, Laia Valls, Isabel Serra, Margarita Osorio, Arantxa Gelabert, Albert Maroto, Salvador Pedraza
A wide spectrum of abnormalities can affect the duodenum, ranging from congenital anomalies to traumatic and inflammatory entities. The location of the duodenum and its close relationship with other organs make it easy to miss or misinterpret duodenal abnormalities on cross-sectional imaging. Endoscopy has largely supplanted fluoroscopy for the assessment of the duodenal lumen. Cross-sectional imaging modalities, especially multidetector computed tomography (MDCT) and magnetic resonance imaging (MRI), enable comprehensive assessment of the duodenum and surrounding viscera...
January 31, 2018: Insights Into Imaging
https://www.readbyqxmd.com/read/29383620/correction-to-the-sternalis-muscle-radiologic-findings-on-mdct
#16
Motoi Shiotani, Takeshi Higuchi, Norihiko Yoshimura, Takao Kiguchi, Naoya Takahashi, Haruo Maeda, Hidefumi Aoyama
In the original publication of the article, the seventh author name was incorrectly published as Hidehumi Aoyama. The correct author name should read as Hidefumi Aoyama.
January 30, 2018: Japanese Journal of Radiology
https://www.readbyqxmd.com/read/29381379/comparing-dose-length-product-based-and-monte-carlo-simulation-organ-based-calculations-of-effective-dose-in-16-and-64-mdct-examinations-using-automatic-tube-current-modulation
#17
Shawn Haji-Momenian, Amy Ellenbogen, Nadia Khati, Myles Taffel, James Earls, Greggory Miller, Robert K Zeman
OBJECTIVE: The purpose of this study is to compare dose-length product (DLP)-based calculation of effective dose (EDDLP) with Monte Carlo simulation organ-based calculation of effective dose (EDMCO) in 16- and 64-MDCT examinations, with the use of clinical examinations with automatic tube current modulation. MATERIALS AND METHODS: Dose data were obtained from 50 consecutive unenhanced head CT examinations, unenhanced chest CT examinations, and unenhanced and contrast-enhanced abdominopelvic CT examinations performed using 16- and 64-MDCT scanners, as well as from 50 pulmonary CT angiography (CTA) examinations performed using a 64-MDCT scanner and 31 pulmonary CTA examinations performed using a 16-MDCT scanner...
January 30, 2018: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29370354/systematic-evaluation-of-collateral-pathways-to-the-artery-of-adamkiewicz-using-computed-tomography
#18
Kunihiro Yoshioka, Ryoichi Tanaka, Hidenobu Takagi, Yuta Ueyama, Tsuyoshi Sugawara, Takuya Chiba, Kazumasa Arakita, Joanne D Schuijf
OBJECTIVES: Preoperative identification of the artery of Adamkiewicz can help prevent postoperative spinal cord injury in patients undergoing thoracic and thoraco-abdominal aortic aneurysm repair. Although several studies have shown the feasibility of evaluating the artery of Adamkiewicz using multidetector row computed tomography (MDCT), no detailed investigations regarding the collateral circulation to the artery of Adamkiewicz have been performed. The purpose of this study was to investigate the collateral circulation to the artery of Adamkiewicz using MDCT in patients with thoracic and thoraco-abdominal aortic aneurysms...
January 22, 2018: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/29359035/ectopic-gastrointestinal-variceal-bleeding-with-portal-hypertension
#19
Keita Minowa, Shuhei Komatsu, Kenichiro Takashina, Sachie Tanaka, Tatsuya Kumano, Kenichiro Imura, Katsumi Shimomura, Jun Ikeda, Fumihiro Taniguchi, Yasuo Ueshima, Tecchuu Lee, Eito Ikeda, Eigo Otsuji, Yasuhiro Shioaki
Massive gastrointestinal bleeding from gastrointestinal varices is one of the most serious complications in patients with portal hypertension. However, if no bleeding point can be detected by endoscopy in the predilection sites of gastrointestinal varices, such as the esophagus and stomach, ectopic gastrointestinal variceal bleeding should be considered as a differential diagnosis. Herein, we report a case of ectopic ileal variceal bleeding in a 57-year-old woman, which was successfully diagnosed by multi-detector row CT (MDCT) and angiography and treated by segmental ileum resection...
December 27, 2017: World Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/29356386/significance-of-tumor-associated-autoantibodies-in-the-early-diagnosis-of-lung-cancer
#20
Qiang Du, Ruofei Yu, Han Wang, Dong Yan, Qi Yuan, Yixin Ma, Dennis Slamon, Dongmei Hou, Huiling Wang, Qi Wang
OBJECTIVES: Autoantibodies tumor-associated antigens (TAAs) could be a valuable tool for the diagnosis or early detection of cancer due to their relatively high specificity and stability. The purpose of this study is to detect the level of tumor-associated autoantibodies in lung cancer and assess the diagnostic potential of autoantibodies in screening strategy for early stage lung cancer. MATERIALS AND METHODS: Levels of tumor-associated autoantibodies (AAbs) were measured against a panel of seven tumor-associated antigens (p53, PGP9...
January 22, 2018: Clinical Respiratory Journal
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