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https://www.readbyqxmd.com/read/27909284/-organizing-pneumonia-with-high-radiotracer-concentration-on-fluorodeoxyglucose-positron-emission-tomography-mimicking-pleural-dissemination-of-lung-cancer-report-of-a-case
#1
Takahisa Matsuoka, Tetsu Yamada, Shinjiro Nagai, Katsunari Matsuoka, Mitsuhiro Ueda, Yoshihiro Miyamoto
A 68-year-old man was referred to our hospital because of an abnormal shadow in the chest roentgenogram. Chest computed tomography (CT) showed the nodule in the right upper lobe (S3), 17 mm in size. One month later, fluorodeoxyglucose-positron emission tomography (FDG-PET)/CT scanning revealed positive reaction in the right upper lobe lesion and new lesion close to another lobe. In addition, interloblar small nodules were detected, 5 mm and 7 mm in size. A transbronchial brush cytology by bronchoscopy was performed, and the microscopic findings demonstrated the presence of atypical cells, suspected adenocarcinoma...
December 2016: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/27906021/video-assisted-thoracoscopic-surgery-for-adult-bochdalek-hernia-a-case-report
#2
Yu-Guang Shen, Na-Na Jiao, Wei Xiong, Quan Tang, Qing-Yong Cai, Gang Xu, Gui-You Liang
BACKGROUND: Bochdalek hernia is a type of congenital diaphragmatic hernia that typically presents in childhood, while this diseases is extremely rare in adults. CASE PRESENTATION: We review a case of a 63-year-old man with a left-sided Bochdalek hernia who was experiencing occasional pain at the left side of his chest for 8 months. The diagnosis of Bochdalek hernia was made by chest computed tomography. A part of the retroperitoneal adipose tissue was herniated into the left thoracic cavity through the diaphragmatic defect...
December 1, 2016: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/27894347/estimation-of-utility-weights-for-human-papilloma-virus-related-health-states-according-to-disease-severity
#3
Minsu Ock, Jeong-Yeol Park, Woo-Seung Son, Hyeon-Jeong Lee, Seon-Ha Kim, Min-Woo Jo
BACKGROUND: A cost-utility study of a human papilloma virus (HPV) vaccine requires that the utility weights for HPV-related health states (i.e., cervical intraepithelial neoplasia (CIN), cervical cancer, and condyloma) be evaluated. The aim of the present study was to determine the utility weights for HPV-related health states. METHODS: Hypothetical standardised health states related to HPV were developed based on patient education material and previous publications...
November 28, 2016: Health and Quality of Life Outcomes
https://www.readbyqxmd.com/read/27889874/decision-support-provided-by-a-temporally-oriented-health-care-assistant-an-implementation-of-computer-interpretable-guidelines
#4
Tiago Oliveira, António Silva, José Neves, Paulo Novais
The automatic interpretation of clinical recommendations is a difficult task, even more so when it involves the processing of complex temporal constraints. In order to address this issue, a web-based system is presented herein. Its underlying model provides a comprehensive representation of temporal constraints in Clinical Practice Guidelines. The expressiveness and range of the model are shown through a case study featuring a Clinical Practice Guideline for the diagnosis and management of colon cancer. The proposed model was sufficient to represent the temporal constraints in the guideline, especially those that defined periodic events and placed temporal constraints on the assessment of patient states...
January 2017: Journal of Medical Systems
https://www.readbyqxmd.com/read/27879526/diagnostic-computed-tomography-coregistration-with-in-111-dtpa-octreotide-single-photon-emission-tomography-low-dose-computed-tomography
#5
Sagi Tshori, Moshe Bocher, Bella Yuzefovich, Rina Rubinstein, David J Gross, Merav Fraenkel, Yodphat Krausz
OBJECTIVES: In-111-DTPA-octreotide (OctreoScan) is still pivotal for neuroendocrine tumor imaging, despite the introduction of Ga-68-octreotide tracers. Low-dose computed tomography (LDCT) assists in the localization of SPECT findings but often results in uncertain interpretation. This retrospective study evaluates the impact of coregistration of In-111-DTPA-octreotide SPECT/LDCT with diagnostic CT on interpretation. METHODS: Thirty-five consecutive studies, in which coregistration was performed because of uncertain interpretation, were evaluated...
November 23, 2016: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/27875217/automatic-scoring-of-multiple-semantic-attributes-with-multi-task-feature-leverage-a-study-on-pulmonary-nodules-in-ct-images
#6
Sihong Chen, Jing Qin, Xing Ji, Baiying Lei, Tianfu Wang, Dong Ni, Jie-Zhi Cheng
The gap between the computational and semantic features is the one of major factors that bottlenecks the computer-aided diagnosis (CAD) performance from clinical usage. To bridge this gap, we exploit three multi-task learning (MTL) schemes to leverage heterogeneous computational features derived from deep learning models of stacked denoising autoencoder (SDAE) and convolutional neural network (CNN), as well as hand-crafted Haar-like and HoG features, for the description of 9 semantic features for lung nodules in CT images...
November 16, 2016: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/27872871/microscopic-medical-image-classification-framework-via-deep-learning-and-shearlet-transform
#7
Hadi Rezaeilouyeh, Ali Mollahosseini, Mohammad H Mahoor
Cancer is the second leading cause of death in US after cardiovascular disease. Image-based computer-aided diagnosis can assist physicians to efficiently diagnose cancers in early stages. Existing computer-aided algorithms use hand-crafted features such as wavelet coefficients, co-occurrence matrix features, and recently, histogram of shearlet coefficients for classification of cancerous tissues and cells in images. These hand-crafted features often lack generalizability since every cancerous tissue and cell has a specific texture, structure, and shape...
October 2016: Journal of Medical Imaging
https://www.readbyqxmd.com/read/27868092/endourologic-diagnosis-and-robotic-treatment-of-a-giant-fibroepithelial-polyp-of-the-ureter
#8
Francesco Cattaneo, Fabio Zattoni, Luca Meggiato, Claudio Valotto, Fabrizio Dal Moro, Marina Paola Gardiman, Paolo Beltrami, Filiberto Zattoni
Background: Fibroepithelial polyps (FEPs) are a rare cause of ureteropelvic junction (UPJ) obstruction. Radiologists and urologists are not always confident with this disease because of its rarity, complex diagnosis, and heterogeneity of the available treatment options. Case Presentation: We present the endourologic diagnosis and the robotic management of a ureteral polyp close to the left UPJ. A 16-year-old woman with a 12 years history of left lumbar pain was referred to our Center. A computed tomography scan detected a left hydronephrosis with no signs of obstructions at MAG-3 scintigraphy...
2016: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/27860078/pulmonologist-performed-transoesophageal-sampling-for-lung-cancer-staging-using-an-endobronchial-ultrasound-videobronchoscope-an-australian-experience
#9
Hari Wimaleswaran, Michael W Farmer, Louis B Irving, Barton R Jennings, Daniel P Steinfort
BACKGROUND: Transoesophageal endobronchial ultrasound (EBUS) video-bronchoscope insertion provides pulmonologists access to conduct endoscopic fine-needle aspiration (EUS-B-FNA) of mediastinal lymph node (LN) lesions and also assist in lung cancer staging by sampling left adrenal gland (LAG) lesions. Limited literature have described additional diagnostic value, whilst maintaining patient safety. METHODS: All eligible patients with paraoesophageal lesions on thoracic computed tomography (CT) underwent pulmonologist-performed EUS-B-FNA at two tertiary centres and were included in this prospective observational cohort study...
November 16, 2016: Internal Medicine Journal
https://www.readbyqxmd.com/read/27858861/laparoscopic-assisted-low-anterior-resection-for-advanced-rectal-cancer-in-a-kidney-transplant-recipient-a-case-report
#10
Zenan Xia, Weijie Chen, Ru Yao, Guole Lin, Huizhong Qiu
INTRODUCTION: Development of de novo malignancy has become a major cause of late mortality in solid organ transplant recipients. Surgery is currently the most important treatment of choice for transplant patients with resectable CRC. However, conventional open surgery represents a great risk to these high-risk patients. They seem to benefit more from laparoscopic surgery, based on the favorable oncological outcome and remarkable short-term advantages of this approach. PATIENT CONCERNS: In this study, we have reported a case of a 50-year-old man who had underwent kidney transplantation for 4 years...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27854091/images-diagnosis-and-emergent-endovascular-treatment-of-acute-hemorrhagic-basilar-artery-dissection-a-case-report
#11
Chia-Ju Lee, Kwo-Whei Lee, Wei-Liang Chen, Chun-Ching Chiu
PURPOSE: Basilar artery dissection (BAD) is a rare but possibly fatal disease with specific neuroimage findings. The management of BAD varies. This report describes a case with hemorrhagic BAD treated by endovascular stent-assisted coil embolization. CASE REPORT: We report an 82-year-old case of acute mid basilar artery dissection complicated with acute subarachnoid hemorrhage (SAH), intraventricular hemorrhage (IVH) and hydrocephalus, which was diagnosed by complete neuroimage surveys including computed tomography angiography (CTA), magnetic resonance angiography (MRA), and digital subtraction angiography (DSA)...
June 15, 2016: Acta Neurologica Taiwanica
https://www.readbyqxmd.com/read/27854032/haustral-loop-extraction-for-ct-colonography-using-geodesics
#12
Yongkai Liu, Chaijie Duan, Jerome Liang, Jing Hu, Hongbing Lu, Mingyue Luo
PURPOSE: The human colon has complex geometric structures because of its haustral folds, which are thin flat protrusions on the colon wall. The haustral loop is the curve (approximately triangular in shape) that encircles the highly convex region of the haustral fold, and is regarded as the natural landmark of the colon, intersecting the longitude of the colon in the middle. Haustral loop extraction can assist in reducing the structural complexity of the colon, and the loops can also serve as anatomic markers for computed tomographic colonography (CTC)...
November 16, 2016: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/27852415/-the-diagnosis-and-treatment-for-pyriform-sinus-fistula-in-children
#13
T Liu, Z Wen, Q F Liang, F Liu, Z Wang, J K Liang
Objective: To discuss the diagnosis and management for pyriform sinus fistula in children. Methods: Eight cases of pyriform sinus fistula admitted in Guangzhou Women and Children's Medical Center from May 2013 to August 2015 were retrospectively analyzed. The median age at onset was 54 months (range from 11 months to 12 years). All 8 cases presented recurrent neck infection (typical of redness, swelling, heat and pain) and 2 accompanied with acute suppurative thyroiditis. The diagnosis was confirmed by the preoperative barium esophagography combined with neck computed tomography scan (plain scan, enhancement and reconstruction)...
October 25, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/27847657/rare-case-of-an-epithelial-cyst-in-an-intrapancreatic-accessory-spleen-treated-by-robot-assisted-spleen-preserving-distal-pancreatectomy
#14
Willemijn P M van Dijck, Vincent P Groot, Lodewijk A A Brosens, Jeroen Hagendoorn, Inne H M Borel Rinkes, Maarten S van Leeuwen, I Quintus Molenaar
Epithelial cyst in an intrapancreatic accessory spleen (ECIPAS) is exceedingly rare with only 57 cases reported since the first publication in 1980. Comprehensive clinical and diagnostic features remain to be clarified. We present a case of ECIPAS in a 21-year-old Philippine woman who was admitted with right upper quadrant abdominal pain. A cystic lesion in the pancreatic tail was discovered and evaluated by computed tomography and magnetic resonance images. Based on clinical and radiological features a solid pseudopapillary neoplasm was suspected...
2016: Case Reports in Gastrointestinal Medicine
https://www.readbyqxmd.com/read/27846217/feature-learning-based-random-walk-for-liver-segmentation
#15
Yongchang Zheng, Danni Ai, Pan Zhang, Yefei Gao, Likun Xia, Shunda Du, Xinting Sang, Jian Yang
Liver segmentation is a significant processing technique for computer-assisted diagnosis. This method has attracted considerable attention and achieved effective result. However, liver segmentation using computed tomography (CT) images remains a challenging task because of the low contrast between the liver and adjacent organs. This paper proposes a feature-learning-based random walk method for liver segmentation using CT images. Four texture features were extracted and then classified to determine the classification probability corresponding to the test images...
2016: PloS One
https://www.readbyqxmd.com/read/27831881/a-bottom-up-approach-for-pancreas-segmentation-using-cascaded-superpixels-and-deep-image-patch-labeling
#16
Amal Farag, Le Lu, Holger R Roth, Jiamin Liu, Evrim Turkbey, Ronald M Summers
Robust organ segmentation is a prerequisite for computer-aided diagnosis (CAD), quantitative imaging analysis, pathology detection and surgical assistance. For organs with high anatomical variability (e.g., the pancreas), previous segmentation approaches report low accuracies, compared to well studied organs, such as the liver or heart.We present an automated bottomup approach for pancreas segmentation in abdominal computed tomography (CT) scans. The method generates a hierarchical cascade of information propagation by classifying image patches at different resolutions and cascading (segments) superpixels...
November 1, 2016: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/27819965/computed-tomography-diagnosis-of-nonspecific-acute-chest-pain-in-the-emergency-department-from-typical-acute-coronary-syndrome-to-various-unusual-mimics
#17
Seung Min Yoo, Eun Ju Chun, Hwa Yeon Lee, Daniel Min, Charles S White
It is a challenging task for emergency department physicians to establish a precise and rapid diagnosis based only on clinical and laboratory findings in patients who present with nonspecific acute chest pain. In this circumstance, CT angiography can provide important clues to the diagnosis. To provide a rapid diagnosis of acute coronary syndrome (ACS) and its various mimics, the physician should enumerate each possible cause of acute chest pain on the basis of an objective assessment of pretest probability...
November 4, 2016: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/27816114/integrated-imaging-in-hypertrophic-cardiomyopathy
#18
REVIEW
Lubna Choudhury, Vera H Rigolin, Robert O Bonow
Hypertrophic cardiomyopathy (HC) has a very heterogeneous clinical spectrum and lends itself to multimodality imaging for evaluation and management. This review addresses clinical applications of cardiac imaging in patients with HC. Integrating various techniques of echocardiography and cardiac magnetic resonance (CMR) is discussed in the clinical context such as diagnosis, evaluation, management, risk stratification, and family screening of patients with HC. The utility of periprocedural imaging techniques is highlighted for guiding surgical and transcatheter septal reduction procedures...
October 11, 2016: American Journal of Cardiology
https://www.readbyqxmd.com/read/27804890/dynamic-cine-imaging-of-the-eustachian-tube-using-four-dimensional-computed-tomography
#19
N Jufas, N Deveau, M Bance
BACKGROUND: Imaging the Eustachian tube has proven difficult as it has an anatomical orientation that is not aligned with standard planes. In addition, the Eustachian tube is a dynamic structure, opening briefly during a variety of physiological manoeuvres. CASE REPORT: A 54-year-old healthy and asymptomatic man underwent computed tomography utilising an area detector scanner. Multiplanar reconstruction was performed at 1 mm intervals. In addition, dynamic clips were constructed to demonstrate air and its movement in the field...
November 2, 2016: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/27803776/balloon-assisted-enteroscopy-for-suspected-meckel-s-diverticulum-and-indefinite-diagnostic-imaging-workup
#20
Guilherme Francisco Gomes, Eduardo Aimore Bonin, Rafael William Noda, Leandro Totti Cavazzola, Thiago Ferreira Bartholomei
Meckel's diverticulum (MD) is estimated to affect 1%-2% of the general population, and it represents a clinically silent finding of a congenital anomaly in up to 85% of the cases. In adults, MD may cause symptoms, such as overt occult lower gastrointestinal bleeding. The diagnostic imaging workup includes computed tomography scan, magnetic resonance imaging enterography, technetium 99m scintigraphy (99mTc) using either labeled red blood cells or pertechnetate (known as the Meckel's scan) and angiography. The preoperative detection rate of MD in adults is low, and many patients ultimately undergo exploratory laparoscopy...
October 16, 2016: World Journal of Gastrointestinal Endoscopy
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