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https://www.readbyqxmd.com/read/29138794/noninvasive-cardiac-testing-vs-clinical-evaluation-alone-in-acute-chest-pain-a-secondary-analysis-of-the-romicat-ii-randomized-clinical-trial
#1
Samuel W Reinhardt, Chien-Jung Lin, Eric Novak, David L Brown
Importance: The incremental benefit of noninvasive testing in addition to clinical evaluation (history, physical examination, an electrocardiogram [ECG], and biomarker assessment) vs clinical evaluation alone for patients who present to the emergency department (ED) with acute chest pain is unknown. Objective: To examine differences in outcomes with clinical evaluation and noninvasive testing (coronary computed tomographic angiography [CCTA] or stress testing) vs clinical evaluation alone...
November 14, 2017: JAMA Internal Medicine
https://www.readbyqxmd.com/read/29137818/molecular-imaging-for-the-diagnosis-of-infective-endocarditis-a-systematic-literature-review-and-meta-analysis
#2
Daniel Juneau, Mohammad Golfam, Samir Hazra, Fernanda Erthal, Lionel S Zuckier, Jordan Bernick, George A Wells, Rob S B Beanlands, Benjamin J W Chow
BACKGROUND: Infective endocarditis (IE) is a serious, potentially life-threatening condition. Currently, the modified Duke criteria is used to assist with the diagnosis of IE, but it can still remain difficult. Growing data supports the potential use of molecular imaging to assist in the diagnosis of IE. Our objective was to understand the potential utility of (18)F-fluorodeoxyglucose ((18)F-FDG) positron emission tomography-computed tomography (PET-CT), (67)Ga citrate and radiolabeled white blood cell (WBC) scintigraphy in the diagnosis of IE...
November 8, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/29114176/detecting-triple-vessel-disease-with-cadmium-zinc-telluride-based-single-photon-emission-computed-tomography-using-the-intensity-signal-to-noise-ratio-between-rest-and-stress-studies
#3
Yu-Hua Dean Fang, Tzu-Pei Su, Chi-Jen Chang, Kung-Chu Ho, May Su, Tzu-Chen Yen
The purpose of this study was to investigate if a novel parameter, the stress-to-rest ratio of the signal-to-noise ratio (RSNR) obtained with a cadmium zinc telluride (CZT) SPECT scanner, could be used to distinguish triple-vessel disease (TVD) patients. Methods. One hundred and two patients with suspected coronary artery disease were retrospectively involved. Each subject underwent a Tl-201 SPECT scan and subsequent coronary angiography. Subjects were separated into TVD (n = 41) and control (n = 61) groups based on coronary angiography results using 50% as the stenosis cutoff...
2017: Contrast Media & Molecular Imaging
https://www.readbyqxmd.com/read/29105019/texture-specific-bag-of-visual-words-model-and-spatial-cone-matching-based-method-for-the-retrieval-of-focal-liver-lesions-using-multiphase-contrast-enhanced-ct-images
#4
Yingying Xu, Lanfen Lin, Hongjie Hu, Dan Wang, Wenchao Zhu, Jian Wang, Xian-Hua Han, Yen-Wei Chen
PURPOSE: The bag of visual words (BoVW) model is a powerful tool for feature representation that can integrate various handcrafted features like intensity, texture, and spatial information. In this paper, we propose a novel BoVW-based method that incorporates texture and spatial information for the content-based image retrieval to assist radiologists in clinical diagnosis. METHODS: This paper presents a texture-specific BoVW method to represent focal liver lesions (FLLs)...
November 5, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/29104685/the-use-of-computed-tomography-in-the-diagnosis-of-fatty-liver-and-abdominal-fat-distribution-among-a-saudi-population
#5
Gasim Ibrahim Gasim, Fahd Mohamed Elshehri, Mahmoud Kheidr, Fahad Khalid Alshubaily, ElZaki Mohamed ElZaki, Imad R Musa
BACKGROUND: The pandemic of obesity is striking heavily worldwide and particularly among the affluent Gulf States where it is expected to continue to rise along with its complications. AIM: To examine the link between liver fat infiltration and abdominal fat amount using plain computer-assisted tomography (CT). METHODS: Fifty patients visiting the obesity clinic of "King Fahd Specialist Hospital" or Dr Suliman Alhabeeb Hospital between January 2015 and April 2016 were included...
October 15, 2017: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/29104652/plain-and-contrast-enhanced-chest-computed-tomography-scan-findings-of-pulmonary-cryptococcosis-in-immunocompetent-patients
#6
Rongshui Yang, Yan Yan, Yuhuan Wang, Xiaohuan Liu, Xinhui Su
Pulmonary cryptococcosis is most commonly reported in immunocompromised patients, whereas immunocompetent hosts are rarely affected and may be asymptomatic, resulting in reduced diagnostic performance of computed tomography (CT) imaging. Thus, the aim of the present study was to review the plain and contrast-enhanced chest CT scan findings of primary pulmonary cryptococcosis in immunocompetent patients, with the aim of improving the diagnosis of this type of pulmonary disease. In the present study, a total of 27 immunocompetent patients of clinically confirmed pulmonary cryptococcosis were analyzed retrospectively...
November 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29104206/-application-of-ultrasonography-in-detecting-multiple-schwannomas-from-a-single-intercostal-nerve-report-of-a-case
#7
Shota Mitsuboshi, Takako Matsumoto, Hideyuki Maeda, Yutaka Miyano, Tamami Isaka, Masato Kanzaki
A 31-year-old man was referred to our hospital for chest abnormal shadow on a routine health checkup. Two nodular lesions were found at the 2nd intercostal space by computed tomography. Chest wall ultrasonography showed 2 masses suspecting tumors. Tumors were resected through 3-cm skin incision with the assistance of thoracoscope. Pathological diagnosis was both schwannomas. Ultrasonography was useful in resecting chest wall tumor.
November 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/29104205/-mediastinal-hemangioma-mimicking-a-mature-cystic-teratoma-report-of-a-case
#8
Jun Nakano, Toshihiro Ikeda
A 16-year old young man was referred to our hospital due to abnormal mass of mediastinum on chest radiography. Chest computed tomography scan revealed 45 mm mass in diameter with low density areas and ring shaped calcification at right upper mediastinum. However, chest magnetic resonance imaging showed no existence of fat nor calcification. Although no typical findings was observed, surgical resection was performed because mature cystic teratoma was undeniable. At complete video-assisted thoracoscopic surgery, tumor was found to be in the upper mediastinum covered with mediastinal pleura and with dense fibrous structures around it, and was resected with surrounding fat tissue...
November 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/29102485/adhesive-internal-hernia-multidetector-ct-findings-and-clinical-relevance
#9
C-Y Lu, M Xu, J Lin, Y Chen, Y Gao, Z-F Wang, Z-W Zhao, J-J Song, H-F Que, J-J Ji
AIM: To review the clinical and multidetector computed tomography (MDCT) features of adhesive internal hernias (IHs) and to ascertain specific MDCT criteria to assist in the diagnosis of adhesive IHs and the early detection of intestinal strangulation. MATERIALS AND METHODS: Medical records and preoperative abdominal MDCT findings of 34 patients with surgically confirmed abdominal adhesive IHs were analysed retrospectively. RESULTS: The specific MDCT features of adhesive IHs included the following: dislocating and clustering of intestinal segments (100%); stretching and crowding of the mesenteric vessels (100%); presence of hernial orifice (88...
November 1, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/29099006/a-26-year-old-man-with-dyspnea-and-chest-pain
#10
Saurabh Mittal, Akanksha Jain, Sudheer Arava, Vijay Hadda, Anant Mohan, Randeep Guleria, Karan Madan
A 26-year-old smoker male presented with a history of sudden onset dyspnea and right-sided chest pain. Chest radiograph revealed large right-sided pneumothorax which was managed with tube thoracostomy. High-resolution computed tomography thorax revealed multiple lung cysts, and for a definite diagnosis, a video-assisted thoracoscopic surgery-guided lung biopsy was performed followed by pleurodesis. This clinicopathologic conference discusses the clinical and radiological differential diagnoses, utility of lung biopsy, and management options for patients with such a clinical presentation...
November 2017: Lung India: Official Organ of Indian Chest Society
https://www.readbyqxmd.com/read/29096349/extramedullary-hematopoiesis-mimicking-mediastinal-tumor-in-a-patient-with-hereditary-spherocytosis-case-report
#11
Jae Bum Park, Song Am Lee, Yo Han Kim, Woo Surng Lee, Jae Joon Hwang
INTRODUCTION: Extramedullary hematopoiesis (EMH) is a rare disorder, defined as the appearance of hematopoietic elements outside the bone marrow or peripheral blood. The exact mechanism of this development is still unknown. We herein report a case of intrathoracic EMH, manifesting as a posterior mediastinal tumor in a patient with hereditary spherocytosis. PRESENTATION OF CASE: A 45-year-old man who presented with anemia, jaundice and abdominal pain was diagnosed with hereditary spherocytosis...
October 27, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29090844/computer-aided-diagnosis-based-on-enhancement-of-degraded-fundus-photographs
#12
Kai Jin, Mei Zhou, Shaoze Wang, Lixia Lou, Yufeng Xu, Juan Ye, Dahong Qian
PURPOSE: Retinal imaging is an important and effective tool for detecting retinal diseases. However, degraded images caused by the aberrations of the eye can disguise lesions, so that a diseased eye can be mistakenly diagnosed as normal. In this work, we propose a new image enhancement method to improve the quality of degraded images. METHODS: A new method is used to enhance degraded-quality fundus images. In this method, the image is converted from the input RGB colour space to LAB colour space and then each normalized component is enhanced using contrast-limited adaptive histogram equalization...
November 1, 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/29090481/utility-of-flexible-bronchoscopy-with-polymerase-chain-reaction-in-the-diagnosis-and-management-of-pulmonary-infiltrates-in-allogeneic-hsct-patients
#13
Fei-Fei Tang, Xiao-Su Zhao, Lan-Ping Xu, Xiao-Hui Zhang, Yu-Hong Chen, Xiao-Dong Mo, Kai-Yan Liu, Xiao-Jun Huang
OBJECTIVES: Pulmonary infiltrates in allogeneic hematopoietic stem cell transplant (allo-HSCT) patients are potentially life-threatening and require early diagnosis and treatment. We aimed to retrospectively explore the clinical efficacy of polymerase chain reaction (PCR) in conjunction with flexible bronchoscopy (FB) in allo-HSCT patients with pulmonary infiltrates. PATIENTS AND METHODS: We retrospectively reviewed all patients undergoing FB after allo-HSCT at the Peking University Institute of Hematology from January 2013 to December 2016...
November 1, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/29089729/sensitivity-of-computed-tomography-guided-transthoracic-biopsies-in-a-nigerian-tertiary-institution
#14
Sunday Adoga Edaigbini, Muhammad Balarabe Aminu, Ibrahim Zira Delia, Ndubuisi Anumenechi, Ikechukwuka Ifeanyichukwu Alioke, Benjamine Fomete, Modupeola Omotara A Samaila
INTRODUCTION: The indications for open biopsies for intrathoracic lesions have become almost negligible. This development was made possible by less invasive maneuvers such as computed tomography-guided (CT-guided) biopsy, thoracoscopy or video-assisted thoracoscopy, and bronchoscopy. CT-guided percutaneous lung biopsy was first reported in 1976. AIM OF STUDY: The aim of the study is to report our experience with CT-guided transthoracic biopsy. MATERIALS AND METHODS: Patients with clinical and radiological evidence of intrathoracic mass were counseled and consent obtained for the procedure...
July 2017: Nigerian Journal of Surgery: Official Publication of the Nigerian Surgical Research Society
https://www.readbyqxmd.com/read/29080491/global-optimal-hybrid-geometric-active-contour-for-automated-lung-segmentation-on-ct-images
#15
Weihang Zhang, Xue Wang, Pengbo Zhang, Junfeng Chen
Lung segmentation on thoracic CT images plays an important role in early detection, diagnosis and 3D visualization of lung cancer. The segmentation accuracy, stability, and efficiency of serial CT scans have a significant impact on the performance of computer-aided detection. This paper proposes a global optimal hybrid geometric active contour model for automated lung segmentation on CT images. Firstly, the combination of global region and edge information leads to high segmentation accuracy in lung regions with weak boundaries or narrow bands...
October 12, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/29075939/web-enabled-distributed-health-care-framework-for-automated-malaria-parasite-classification-an-e-health-approach
#16
Maitreya Maity, Dhiraj Dhane, Tushar Mungle, A K Maiti, Chandan Chakraborty
Web-enabled e-healthcare system or computer assisted disease diagnosis has a potential to improve the quality and service of conventional healthcare delivery approach. The article describes the design and development of a web-based distributed healthcare management system for medical information and quantitative evaluation of microscopic images using machine learning approach for malaria. In the proposed study, all the health-care centres are connected in a distributed computer network. Each peripheral centre manages its' own health-care service independently and communicates with the central server for remote assistance...
October 26, 2017: Journal of Medical Systems
https://www.readbyqxmd.com/read/29065640/a-fast-svm-based-tongue-s-colour-classification-aided-by-k-means-clustering-identifiers-and-colour-attributes-as-computer-assisted-tool-for-tongue-diagnosis
#17
Nur Diyana Kamarudin, Chia Yee Ooi, Tadaaki Kawanabe, Hiroshi Odaguchi, Fuminori Kobayashi
In tongue diagnosis, colour information of tongue body has kept valuable information regarding the state of disease and its correlation with the internal organs. Qualitatively, practitioners may have difficulty in their judgement due to the instable lighting condition and naked eye's ability to capture the exact colour distribution on the tongue especially the tongue with multicolour substance. To overcome this ambiguity, this paper presents a two-stage tongue's multicolour classification based on a support vector machine (SVM) whose support vectors are reduced by our proposed k-means clustering identifiers and red colour range for precise tongue colour diagnosis...
2017: Journal of Healthcare Engineering
https://www.readbyqxmd.com/read/29065605/feature-extraction-and-classification-on-esophageal-x-ray-images-of-xinjiang-kazak-nationality
#18
Fang Yang, Murat Hamit, Chuan B Yan, Juan Yao, Abdugheni Kutluk, Xi M Kong, Sui X Zhang
Esophageal cancer is one of the fastest rising types of cancers in China. The Kazak nationality is the highest-risk group in Xinjiang. In this work, an effective computer-aided diagnostic system is developed to assist physicians in interpreting digital X-ray image features and improving the quality of diagnosis. The modules of the proposed system include image preprocessing, feature extraction, feature selection, image classification, and performance evaluation. 300 original esophageal X-ray images were resized to a region of interest and then enhanced by the median filter and histogram equalization method...
2017: Journal of Healthcare Engineering
https://www.readbyqxmd.com/read/29063447/stage-iv-gastric-cancer-successfully-treated-by-multidisciplinary-therapy-including-chemotherapy-immunotherapy-and-surgery-a-case-report
#19
Makoto Kawamoto, Hideya Onishi, Norihiro Koya, Hiroyuki Konomi, Kenji Mitsugi, Risa Tanaka, Junichi Motoshita, Takashi Morisaki, Masafumi Nakamura
BACKGROUND: The prognosis of stage IV gastric cancer (GC) still remains unfavorable. Multidisciplinary approaches should therefore be considered to improve the survival of patients with stage IV GC. We report here a case of primary GC with potentially unresectable metastasis, successfully treated by a multidisciplinary approach including chemotherapy, immunotherapy, and surgery. CASE PRESENTATION: A 74-year-old man presented with multiple left neck masses. Abdominal computed tomography showed a thickened gastric wall and multiple lymphadenopathies including left supraclavicular lymph node...
October 23, 2017: Surgical Case Reports
https://www.readbyqxmd.com/read/29061139/evaluation-of-lymphatic-vessel-dilatations-by-anterior-segment-swept-source-optical-coherence-tomography-case-report
#20
Eva Volek, Jeannette Toth, Zoltan Zsolt Nagy, Miklos Schneider
BACKGROUND: Conjunctival lymphangiectasia is a rare condition presumably caused by the obstruction of lymphatic channels or by an abnormal connection between conjunctival lymphatic and blood vessels. Diagnosis is based on clinical appearance and histology. We report a case of conjunctival lymphangiectasia in which anterior segment optical coherence tomography (OCT) was used to assist the diagnosis and the planning of the biopsy location. CASE PRESENTATION: A 31-year-old woman was referred with repeated episodes of conjunctival "hemorrhages" and chemosis with extended recovery periods over the last months...
October 23, 2017: BMC Ophthalmology
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