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https://www.readbyqxmd.com/read/28806320/the-value-of-quality-assured-magnetic-resonance-imaging-of-the-breast-for-the-early-detection-of-breast-cancer-in-asymptomatic-women
#1
Uwe Fischer, Susanne Luftner-Nagel, Friedemann Baum, Katharina Marten-Engelke, Susanne Wienbeck
PURPOSE: The aim of this study was to evaluate the exclusive performance of quality-assured high-resolution breast magnetic resonance imaging (MRI) for early detection of breast cancer in a population of asymptomatic women. MATERIALS AND METHODS: A total of 1189 MRI examinations performed in 789 asymptomatic women (mean age, 51.1 years) were evaluated. All examinations were performed using open bilateral surface coil, dedicated compression device, and high spatial resolution (matrix, 512 × 512)...
August 12, 2017: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/28802329/skin-lesion-computational-diagnosis-of-dermoscopic-images-ensemble-models-based-on-input-feature-manipulation
#2
Roberta B Oliveira, Aledir S Pereira, João Manuel R S Tavares
BACKGROUND AND OBJECTIVES: The number of deaths worldwide due to melanoma has risen in recent times, in part because melanoma is the most aggressive type of skin cancer. Computational systems have been developed to assist dermatologists in early diagnosis of skin cancer, or even to monitor skin lesions. However, there still remains a challenge to improve classifiers for the diagnosis of such skin lesions. The main objective of this article is to evaluate different ensemble classification models based on input feature manipulation to diagnose skin lesions...
October 2017: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/28796045/with-a-little-help-from-a-computer-discriminating-between-bacterial-and-viral-meningitis-based-on-dominance-based-rough-set-approach-analysis
#3
Ewelina Gowin, Danuta Januszkiewicz-Lewandowska, Roman Słowiński, Jerzy Błaszczyński, Michał Michalak, Jacek Wysocki
Differential Diagnosis of bacterial and viral meningitis remains an important clinical problem. A number of methods to assist in the diagnoses of meningitis have been developed, but none of them have been found to have high specificity with 100% sensitivity.We conducted a retrospective analysis of the medical records of 148 children hospitalized in St. Joseph Children's Hospital in Poznań. In this study, we applied for the first time the original methodology of dominance-based rough set approach (DRSA) to diagnostic patterns of meningitis data and represented them by decision rules useful in discriminating between bacterial and viral meningitis...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28790911/plasma-levels-of-a%C3%AE-42-and-tau-identified-probable-alzheimer-s-dementia-findings-in-two-cohorts
#4
Lih-Fen Lue, Marwan N Sabbagh, Ming-Jang Chiu, Naomi Jing, Noelle L Snyder, Christopher Schmitz, Andre Guerra, Christine M Belden, Ta-Fu Chen, Che-Chuan Yang, Shieh-Yueh Yang, Douglas G Walker, Kewei Chen, Eric M Reiman
The utility of plasma amyloid beta (Aβ) and tau levels for the clinical diagnosis of Alzheimer's disease (AD) dementia has been controversial. The main objective of this study was to compare Aβ42 and tau levels measured by the ultra-sensitive immunomagnetic reduction (IMR) assays in plasma samples collected at the Banner Sun Health Institute (BSHRI) (United States) with those from the National Taiwan University Hospital (NTUH) (Taiwan). Significant increase in tau levels were detected in AD subjects from both cohorts, while Aβ42 levels were increased only in the NTUH cohort...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28790251/-resection-of-a-posterior-mediastinal-tumor-using-intraoperative-motor-evoked-potential-monitoring-report-of-a-case
#5
Motoaki Yasukawa, Tsunenori Takatani, Masahiko Kawaguchi, Takeshi Kawaguchi, Norikazu Kawai, Takashi Tojo, Shigeki Taniguchi
A 20-year-old man with a posterior mediastinal tumor incidentally found on a chest X-ray was referred to our hospital. Chest computed tomography showed a 3 cm nodule located on the left side of the 10-11th thoracic vertebra, where the artery of Adamkiewicz is presumed to arise. He underwent left thoracotomy to remove the lesion. The tumor was safely resected with the assistance of intraoperative motor evoked potential(MEP) monitoring. The postoperative diagnosis was a benign schwannoma. In thoracic surgery for posterior mediastinal tumors, intraoperative MEP monitoring is useful for preventing paraplegia...
August 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/28781779/solitary-splenic-metastasis-of-pulmonary-carcinoid-a-rare-case-report-and-literature-review
#6
Toshio Nishikawa, Masahiko Takahashi, Masanobu Mori, Yasuaki Kamikawa, Fumiyuki Inoue
We herein report a rare case of solitary splenic metastasis of a pulmonary carcinoid, for which hand-assisted laparoscopic splenectomy was performed. A 73-year-old man was admitted to the Inoue Hospital (Fukuyama, Japan) in March 2015 with an abnormal shadow of the spleen. The patient had a history of right upper lobectomy with lymph node dissection for a pulmonary typical carcinoid (pT1N0M0 stage IA) 7 years earlier. Plain abdominal computed tomography (CT) revealed a low-density area in the spleen. Enhanced abdominal CT revealed a mass in the spleen measuring 3×3 cm...
August 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28774445/computed-tomography-and-mr-imaging-in-spondyloarthritis
#7
REVIEW
Antonio Leone, Victor N Cassar-Pullicino, Paola D'Aprile, Michelangelo Nasuto, Giuseppe Guglielmi
This article provides an overview of the computed tomography (CT) and MR imaging appearances suggestive of spondyloarthritis, with a specific emphasis on the MR imaging findings of vertebral and sacroiliac involvement, and presents relevant clinical features that assist early diagnosis. CT is a sensitive imaging modality for the assessment of structural bone changes, but its clinical utility is limited. MR imaging is the modality of choice for early diagnosis, because of its ability to depict inflammation long before structural bone damage occurs, for monitoring of disease activity, and for evaluating therapeutic response...
September 2017: Radiologic Clinics of North America
https://www.readbyqxmd.com/read/28774437/new-approach-to-detect-and-classify-stroke-in-skull-ct-images-via-analysis-of-brain-tissue-densities
#8
Pedro P Rebouças Filho, Róger Moura Sarmento, Gabriel Bandeira Holanda, Daniel de Alencar Lima
BACKGROUND AND OBJECTIVE: Cerebral vascular accident (CVA), also known as stroke, is an important health problem worldwide and it affects 16 million people worldwide every year. About 30% of those that have a stroke die and 40% remain with serious physical limitations. However, recovery in the damaged region is possible if treatment is performed immediately. In the case of a stroke, Computed Tomography (CT) is the most appropriate technique to confirm the occurrence and to investigate its extent and severity...
September 2017: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/28774432/automatic-methods-for-alveolar-bone-loss-degree-measurement-in-periodontitis-periapical-radiographs
#9
P L Lin, P Y Huang, P W Huang
BACKGROUND AND OBJECTIVE: Periodontitis involves progressive loss of alveolar bone around the teeth. Hence, automatic alveolar bone loss measurement in periapical radiographs can assist dentists in diagnosing such disease. In this paper, we propose an automatic length-based alveolar bone loss measurement system with emphasis on a cementoenamel junction (CEJ) localization method: CEJ_LG. METHOD: The bone loss measurement system first adopts the methods TSLS and ABLifBm, which we presented previously, to extract teeth contours and bone loss areas from periodontitis radiograph images...
September 2017: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/28770121/necrotizing-pneumonia-an-emerging-problem-in-children
#10
REVIEW
I Brent Masters, Alan F Isles, Keith Grimwood
BACKGROUND: In children, necrotizing pneumonia (NP) is an uncommon, severe complication of pneumonia. It is characterized by destruction of the underlying lung parenchyma resulting in multiple small, thin-walled cavities and is often accompanied by empyema and bronchopleural fistulae. REVIEW: NP in children was first reported in children in 1994, and since then there has been a gradual increase in cases, which is partially explained by greater physician awareness and use of contrast computed tomography (CT) scans, and by temporal changes in circulating respiratory pathogens and antibiotic prescribing...
2017: Pneumonia
https://www.readbyqxmd.com/read/28759887/the-diagnostic-accuracy-of-magnetic-resonance-angiography-for-blunt-vertebral-artery-injury-detection-in-trauma-patients-a-systematic-review-and-meta-analysis
#11
REVIEW
Georgios P Karagiorgas, Alexandros G Brotis, Theofanis Giannis, Christos D Rountas, Katerina G Vassiou, Kostas N Fountas, Eftychia Z Kapsalaki
The role of magnetic resonance angiography (MRA) in the evaluation of patients with blunt vertebral artery has not been fully established. Our aim is to define the diagnostic accuracy of MRA in comparison to digital subtraction angiography (DSA) for the detection of blunt vertebral artery injury in trauma patients. A computer-assisted literature search of the PubMed, Scopus, Highwire, Web of Science, and LILACS was conducted, in order to identify studies reporting on the sensitivity and specificity of MRA in comparison to DSA for the detection of blunt vertebral artery injury in trauma patients...
September 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28757916/bone-scintigraphy-in-patients-with-pain
#12
REVIEW
Seung Hyeon Shin, Seong Jang Kim
Nuclear medicine imaging is widely used in pain medicine. Low back pain is commonly encountered by physicians, with its prevalence from 49% to 70%. Computed tomography (CT) or magnetic resonance imaging (MRI) are usually used to evaluate the cause of low back pain, however, these findings from these scans could also be observed in asymptomatic patients. Bone scintigraphy has an additional value in patients with low back pain. Complex regional pain syndrome (CRPS) is defined as a painful disorder of the extremities, which is characterized by sensory, autonomic, vasomotor, and trophic disturbances...
July 2017: Korean Journal of Pain
https://www.readbyqxmd.com/read/28754078/3d-simulation-assisted-resection-of-giant-hepatic-mesenchymal-hamartoma-in-children
#13
Jing Zhao, Xian-Jun Zhou, Cheng-Zhan Zhu, Ying Wu, Bin Wei, Gang Zhang, Xi-Wei Hao, Hong Zhang, Zhong Jiang, Qian Dong
OBJECTIVE: To evaluate the usefulness of Hisense Computer Assisted Surgery System (Hisense CAS) in pre-operative surgical planning and intra-operative navigation for resection of pediatric giant hepatic mesenchymal hamartoma (HMH). METHODS: Five children with HMH underwent hepatectomy in our hospital. Pre-operative abdominal enhanced CT was performed for diagnosis and treatment planning. Using CT DICOM files, three-dimensional reconstruction was performed in three cases for operation planning and intra-operative navigation, with SID carrying out precise liver resection during the operation with Hisense CAS...
December 2017: Computer Assisted Surgery (Abingdon, England)
https://www.readbyqxmd.com/read/28748455/resection-of-rectal-cancer-resembling-submucosal-tumor-that-was-preoperatively-diagnosed-with-endoscopic-ultrasound-guided-biopsy
#14
Akimitsu Tanio, Hiroaki Saito, Keigo Ashida, Shouichi Urushibara, Manabu Yamamoto, Naruo Tokuyasu, Teruhisa Sakamoto, Soichiro Honjo, Yoshihiko Maeta, Yoshiyuki Fujiwara
BACKGROUND: Colorectal cancer (CRC) resembling submucosal tumor (SMT; CRC/SMT) is very rare. Because its biopsy is challenging, accurate preoperative diagnosis is also very rare. CASE PRESENTATION: A 55-year-old woman with a high serum carcinoembryonic antigen level underwent a computed tomography colonoscopy, which showed extrinsic rectum compression. A coronal magnetic resonance image showed a 4-cm low-intensity tumor between her rectum and sacrum. Endoscopic ultrasound (EUS) showed a 30-mm low-echoic lesion originating from the rectum...
December 2017: Surgical Case Reports
https://www.readbyqxmd.com/read/28743197/evaluation-of-parkinson-s-disease-by-neuromelanin-sensitive-magnetic-resonance-imaging-and-123-i-fp-cit-spect
#15
Keita Kuya, Toshihide Ogawa, Yuki Shinohara, Mana Ishibashi, Shinya Fujii, Naoko Mukuda, Yoshio Tanabe
Background Both neuromelanin-sensitive magnetic resonance imaging (NmMRI) and (123)I-FP-CIT single photon emission computed tomography (SPECT) (DaTSCAN) assist the diagnosis of Parkinson's disease (PD). However, there have been few studies investigating a correlation between them. Purpose To correlate the utility of NmMRI and DaTSCAN and to evaluate the relationship between both imaging findings and the Unified PD rating scale part III (UPDRS III) score for the diagnosis and management of PD. Material and Methods Seventeen patients with PD who underwent both NmMRI and DaTSCAN were included...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28740696/uniportal-video-assisted-thoracoscopic-thymectomy-and-resection-of-a-giant-thymoma-in-a-patient-witness-of-jehova
#16
Diego Gonzalez-Rivas, Ching Feng Wu, Mercedes de la Torre
A rare case of a giant thymoma in a patient witness of Jehova treated by single port thoracoscopic resection is reported. A 78-year-old man with chest pain and mild dyspnea had been previously diagnosed with giant thymoma went to our hospital and asked for second opinion of operation. Computed tomography showed a 12.5 cm × 9.5 cm × 10 cm mass in the anterior mediastinum. Under the request of this patient, he is only willing to receive minimal invasive surgery without blood transfusion. Thirty-six hours after surgical resection, the patient safely discharged from our hospital without complication...
June 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28738751/a-single-center-retrospective-study-clinical-features-of-different-types-of-budd-chiari-syndrome-in-chinese-patients-in-the-hubei-area
#17
Gangping Li, Ying Huang, Shunyu Tang, Yuhu Song, Huimin Liang, Dehan Liu, Ling Yang, Xiaohua Hou
Background The characteristics and prevalence of Budd-Chiari syndrome in China remain unclear. This study aimed to analyze the clinical features of Budd-Chiari syndrome in Chinese patients in the Hubei area. Methods One-hundred and thirty patients with Budd-Chiari syndrome, admitted to Union Hospital from January 2002 to January 2011, were included in this retrospective study. Clinical features, laboratory data, imaging characteristics, and cumulative patency rates were analyzed. Results Of the 130 patients with Budd-Chiari syndrome, 77 were men (59...
January 1, 2017: Vascular
https://www.readbyqxmd.com/read/28712699/ct-scout-based-semi-automated-vertebral-morphometry-after-digital-image-enhancement
#18
Wojciech M Glinkowski, Jerzy Narloch
INTRODUCTION: Radiographic diagnosis of osteoporotic vertebral fracture is necessary to reduce its substantial associated morbidity. Computed tomography (CT) scout has recently been demonstrated as a reliable technique for vertebral fracture diagnosis. Software assistance may help to overcome some limitations of that diagnostics. We aimed to evaluate whether digital image enhancement improved the capacity of one of the existing software to detect fractures semi-automatically. METHODS: CT scanograms of patients suffering from osteoporosis, with or without vertebral fractures were analyzed...
June 29, 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28707110/what-factors-are-associated-with-90-day-episode-of-care-payments-for-younger-patients-with-total-joint-arthroplasty
#19
Shweta Pathak, Cecilia M Ganduglia, Samir S Awad, Wenyaw Chan, John M Swint, Robert O Morgan
BACKGROUND: Total joint arthroplasty (TJA) has been identified as a procedure with substantial variations in inpatient and postacute care payments. Most studies in this area have focused primarily on the Medicare population and rarely have characterized the younger commercially insured populations. Understanding the inpatient and postdischarge care service-component differences across 90-day episodes of care and factors associated with payments for younger patients is crucial for successful implementation of bundled payments in TJA in non-Medicare populations...
July 13, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28706850/pneumothorax-caused-by-cystic-and-nodular-lung-metastases-from-a-malignant-uterine-perivascular-epithelioid-cell-tumor-pecoma
#20
Shouichi Okamoto, Moegi Komura, Yasuhisa Terao, Aiko Kurisaki-Arakawa, Takuo Hayashi, Tsuyoshi Saito, Shinsaku Togo, Akira Shiokawa, Keiko Mitani, Etsuko Kobayashi, Toshio Kumasaka, Kazuhisa Takahashi, Kuniaki Seyama
Perivascular epithelioid cell tumors (PEComas) are mesenchymal neoplasms with immunoreactivity for both melanocytic and smooth muscle markers. PEComas occur at multiple sites, and malignant PEComas can undergo metastasis, recurrence and aggressive clinical courses. Although the lung is a common metastatic site of PEComas, they usually appear as multiple nodules but rarely become cystic or cavitary. Here, we describe a female patient whose lungs manifested multiple cystic, cavity-like and nodular metastases 3 years after the resection of uterine tumors tentatively diagnosed as epithelioid smooth muscle tumors with uncertain malignant potential...
2017: Respiratory Medicine Case Reports
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