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https://www.readbyqxmd.com/read/29755685/selected-pet-radiomic-features-remain-the-same
#1
Tetsuya Tsujikawa, Hideaki Tsuyoshi, Masafumi Kanno, Shizuka Yamada, Masato Kobayashi, Norihiko Narita, Hirohiko Kimura, Shigeharu Fujieda, Yoshio Yoshida, Hidehiko Okazawa
Purpose: We investigated whether PET radiomic features are affected by differences in the scanner, scan protocol, and lesion location using 18 F-FDG PET/CT and PET/MR scans. Results: SUV, TMR, skewness, kurtosis, entropy, and homogeneity strongly correlated between PET/CT and PET/MR images. SUVs were significantly higher on PET/MR0-2 min and PET/MR0-10 min than on PET/CT in gynecological cancer ( p = 0.008 and 0.008, respectively), whereas no significant difference was observed between PET/CT, PET/MR0-2 min , and PET/MR0-10 min images in oral cavity/oropharyngeal cancer...
April 17, 2018: Oncotarget
https://www.readbyqxmd.com/read/29739969/detection-of-cervical-lymph-node-metastasis-from-oral-cavity-cancer-using-a-non-radiating-noninvasive-digital-infrared-thermal-imaging-system
#2
Fan Dong, Chuansibo Tao, Ji Wu, Ying Su, Yuguang Wang, Yong Wang, Chuanbin Guo, Peijun Lyu
This study aimed to evaluate the diagnostic performance of a non-radiating, noninvasive infrared (IR) thermal imaging system in the detection of cervical lymph node metastasis from oral cavity cancer. In this prospective clinical trial, a total of 90 oral cavity cancer patients suspected of having cervical lymph node metastasis underwent IR imaging of the neck prior to neck dissection. Analysis of the IR images was performed by two methods: manual qualitative analysis and automatic analysis by an entropy-gradient support vector machine (EGSVM)...
May 8, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29737955/comparison-of-two-neutral-oral-contrast-agents-in-pediatric-patients-a-prospective-randomized-study
#3
Jonathan R Dillman, Alexander J Towbin, Rebecca Imbus, Julie Young, Erica Gates, Andrew T Trout
Purpose To prospectively compare small bowel distention provided by, as well as patient acceptance of, two different neutral (negative) oral contrast materials used for cross-sectional enterography in a pediatric population. Materials and Methods In this noninferiority study, 66 pediatric patients undergoing clinical computed tomographic (CT) or magnetic resonance (MR) enterography were randomized to receive either a flavored beverage for neutral abdominal and pelvic imaging (Breeza; Beekley Medical, Bristol, Conn) or a low-density barium sulfate suspension...
May 8, 2018: Radiology
https://www.readbyqxmd.com/read/29737949/oral-contrast-agents-for-pediatric-ct-and-mr-enterography-it-s-a-matter-of-good-taste
#4
Donald P Frush
No abstract text is available yet for this article.
May 8, 2018: Radiology
https://www.readbyqxmd.com/read/29735507/a-severe-deep-neck-odontogenic-infection-not-prioritised-by-the-emergency-department-triage-system-and-national-early-warning-score
#5
Emma Wates, James Higginson, Andre Kichenaradjou, Kieron McVeigh
A 62-year-old man with a background of type 2 diabetes mellitus presented to the emergency department (ED) with a 5-day history of dental pain, progressive right facial swelling, trismus, dysphagia and voice changes. The oropharynx could not be directly examined completely due to trismus. The patient had a National Early Warning Score of 0 and so was triaged into the 'minors' section of ED. Following assessment by the on-call oral and maxillofacial surgeon, an urgent contrast-enhanced CT demonstrated a large parapharyngeal collection, which required urgent anaesthetic and surgical intervention...
May 7, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29722746/spot-sign-in-acute-intracerebral-hemorrhage-in-magnetic-resonance-imaging-a-case-report-and-review-of-the-literature
#6
Zalan Khan, Premkumar Nattanmai, Pravin George, Christopher R Newey
INTRODUCTION: Intracranial hemorrhage (ICH) is associated with significant mortality and morbidity. Current treatment paradigms focus on correcting hypertension and coagulopathy to prevent hematoma expansion. Magnetic resonance imaging (MRI) is becoming more common in the hyperactive phase of ICH management. The finding of contrast extravasation (ie, spot sign) on MRI may be a marker of active bleeding. We present a case of MRI spot sign and review of the literature. CASE REPORT: We present a patient on oral coumadin for history of deep venous thrombosis and pulmonary embolus who presented with a right basal ganglia hemorrhage...
May 2018: Neurologist
https://www.readbyqxmd.com/read/29721397/diagnostic-efficiency-of-multidetector-computed-tomography-in-the-evaluation-of-clinically-equivocal-cases-of-acute-appendicitis-with-surgical-correlation
#7
Jawaid Iqbal, Raza Sayani, Misbah Tahir, Syed M Mustahsan
Acute appendicitis is one of the most frequent causes of lower abdominal pain and requires immediate surgical intervention. The diagnosis often poses a lot of challenge even to experienced surgeon. Those patients with equivocal symptoms may require different imaging modalities like radiography, contrast examination and ultrasound with limited utility. Multidetector computed tomography (MDCT) used in suspected acute appendicitis has, however, resulted in improved diagnostic accuracy and also reduction of negative surgeries...
March 1, 2018: Curēus
https://www.readbyqxmd.com/read/29718892/clinical-application-of-oral-meglumine-diatrizoate-esophagogram-in-screening-esophageal-fistula-during-radiotherapy-for-esophageal-cancer
#8
Lidan Geng, Rong Wu, He Hu, Yu Zhao, Lingli Fan, Zhenhua Zhao, Dongbiao Liao, Musheng Li, Miao Xiang, Ying Ma, Xiaobo Du
INTRODUCTION: Esophageal fistula is a serious and common complication of radiotherapy for esophageal cancer. Therefore, early diagnosis and treatment is necessary. Because of side effect of barium esophagography, it cannot be used to screening esophageal fistula during radiotherapy. Meglumine diatrizoate is an ionic contrast agent, its adverse reactions were rarely seen when it was used in the body cavity. The purpose of this trial is identified the sensitivity and specificity of oral meglumine diatrizoate in an esophagogram for screening esophageal fistula during radiotherapy...
May 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29692528/comparative-diagnostic-test-accuracy-of-post-esophagectomy-water-soluble-computed-tomography-and-fluoroscopic-swallow-studies-a-meta-analysis
#9
Timothy E Murray, Martina Morrin
Aims: Both fluoroscopic water-soluble contrast swallow (FWSCS) and CT water-soluble contrast swallow (CTWSCS) are widely performed as a routine in the post-esophagectomy patient to assess for anastomotic leak. Several prospective studies have compared FWSCS and CTWSCS; however, no synthesis of the data exists. Materials and Methods: Systematic review and meta-analysis of diagnostic test accuracy studies comparing FWSCS and CTWSCS in the adult patient following esophagectomy for malignancy was performed in accordance with PRISMA guidelines...
January 2018: Indian Journal of Radiology & Imaging
https://www.readbyqxmd.com/read/29679001/nonaneurysmal-perimesencephalic-subarachnoid-hemorrhage-as-an-atypical-initial-presentation-of-cerebral-venous-sinus-thrombosis-a-case-report
#10
Roaa R Amer, Eman A Bakhsh
BACKGROUND Subarachnoid hemorrhage is rarely the first presentation of cerebral venous sinus thrombosis. This case study emphasizes the presentation of perimesencephalic subarachnoid hemorrhage due to cerebral venous sinus thrombosis and the importance of neurovascular imaging for reliable diagnosis of nonaneurysmal perimesencephalic subarachnoid hemorrhage due to cerebral venous sinus thrombosis. CASE REPORT We describe a case of cerebral venous sinus thrombosis manifesting initially as subarachnoid hemorrhage...
April 21, 2018: American Journal of Case Reports
https://www.readbyqxmd.com/read/29670888/computational-fluid-dynamic-analysis-of-the-left-atrial-appendage-to-predict-thrombosis-risk
#11
Giorgia Maria Bosi, Andrew Cook, Rajan Rai, Leon J Menezes, Silvia Schievano, Ryo Torii, Gaetano Burriesci
During Atrial Fibrillation (AF) more than 90% of the left atrial thrombi responsible for thromboembolic events originate in the left atrial appendage (LAA), a complex small sac protruding from the left atrium (LA). Current available treatments to prevent thromboembolic events are oral anticoagulation, surgical LAA exclusion, or percutaneous LAA occlusion. However, the mechanism behind thrombus formation in the LAA is poorly understood. The aim of this work is to analyse the hemodynamic behaviour in four typical LAA morphologies - "Chicken wing", "Cactus", "Windsock" and "Cauliflower" - to identify potential relationships between the different shapes and the risk of thrombotic events...
2018: Frontiers in Cardiovascular Medicine
https://www.readbyqxmd.com/read/29670522/dabigatran-added-to-dual-antiplatelet-therapy-to-treat-a-left-ventricular-thrombus-in-an-87-year-old-patient-with-myocardial-infarction-and-very-high-bleeding-risk
#12
Maria Noflatscher, Nicolas Moes, Eva-Maria Gassner, Peter Marschang
Background: A left ventricular (LV) thrombus is detected in approximately 5-10% of patients after myocardial infarction (MI). If left untreated, these LV thrombi carry a significant risk of complications including embolic stroke. According to current guidelines, anticoagulation with vitamin K antagonists (VKA) is recommended to treat a LV thrombus. Case presentation: An 87 year old patient was referred to our department with non ST-elevation MI. Five months before, he had been diagnosed with a subacute ST elevation MI, which had been treated conservatively...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29622120/imaging-of-minor-salivary-glands
#13
REVIEW
Ahmed Abdel Khalek Abdel Razek, Suresh K Mukherji
Neoplastic and non-neoplastic lesions may involve the minor salivary glands. Tumors of minor salivary glands are commonly seen in the oral cavity. Malignant tumors are more common than benign minor salivary gland tumors. The most common malignant tumors are adenoid cystic carcinoma and mucoepidermoid carcinoma, and the most common benign tumor is pleomorphic adenoma. Non-neoplastic lesions may involve minor salivary glands such as Sjogrene disease, immunoglobulin G4-related disease, necrotizing sialometaplasia, and subacute necrotizing sialadenitis...
May 2018: Neuroimaging Clinics of North America
https://www.readbyqxmd.com/read/29609605/severe-plasmodium-ovale-malaria-complicated-by-acute-respiratory-distress-syndrome-in-a-young-caucasian-man
#14
Alessandra D'Abramo, Saba Gebremeskel Tekle, Marco Iannetta, Laura Scorzolini, Alessandra Oliva, Maria Grazia Paglia, Angela Corpolongo, Emanuele Nicastri
BACKGROUND: Although Plasmodium ovale is considered the cause of only mild malaria, a case of severe malaria due to P. ovale with acute respiratory distress syndrome is reported. CASE PRESENTATION: A 37-year old Caucasian man returning home from Angola was admitted for ovale malaria to the National Institute for Infectious Diseases Lazzaro Spallanzani in Rome, Italy. Two days after initiation of oral chloroquine treatment, an acute respiratory distress syndrome was diagnosed through chest X-ray and chest CT scan with intravenous contrast...
April 2, 2018: Malaria Journal
https://www.readbyqxmd.com/read/29592983/rare-cause-of-fever-of-unknown-origin-gastrointestinal-stromal-tumour
#15
Manjunath Havalappa Dodamani, Rajiv Ranjan Kumar, Mayur Parkhi, Rajendar Basher
A 44-year-old man presented with fever (low to high grade) for 2-month duration despite treatment with oral antibiotics and antipyretics. Further, enquiry did not yield any potentially explanatory clues to a diagnosis. Physical examination revealed only left axillary lymphadenopathy, but was otherwise unremarkable. A number of diagnosis included tuberculosis, malignancy, lymphoma, connective disease disorder and infective endocarditis. Further evaluation revealed severe anaemia due to iron deficiency which was supported with blood transfusion and oral iron supplementation...
March 28, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29572712/-imaging-of-gastrointestinal-inflammation-characteristic-patterns-and-signs
#16
REVIEW
T Mang, M Scharitzer
CLINICAL PROBLEM: Pathological conditions of the gastrointestinal tract can result from various disorders, including inflammatory, infectious, neoplastic, and ischemic diseases. RADIOLOGICAL STANDARD PROCEDURES: Cross-sectional imaging techniques have largely replaced many of the conventional fluoroscopic examinations, such as small bowel follow-through and double-contrast barium enema. The former allow for time-efficient, accurate, and minimally invasive diagnostics...
March 23, 2018: Der Radiologe
https://www.readbyqxmd.com/read/29549973/value-of-dual-energy-ct-enterography-in-the-analysis-of-pathological-bowel-segments-in-patients-with-crohn-s-disease
#17
A M Villanueva Campos, G Tardáguila de la Fuente, E Utrera Pérez, C Jurado Basildo, D Mera Fernández, C Martínez Rodríguez
OBJECTIVE: To analyze whether there are significant differences in the objective quantitative parameters obtained in the postprocessing of dual-energy CT enterography studies between bowel segments with radiologic signs of Crohn's disease and radiologically normal segments. MATERIAL AND METHODS: This retrospective study analyzed 33 patients (16 men and 17 women; mean age 54 years) with known Crohn's disease who underwent CT enterography on a dual-energy scanner with oral sorbitol and intravenous contrast material in the portal phase...
March 14, 2018: Radiología
https://www.readbyqxmd.com/read/29529452/effects-of-eliminating-routine-use-of-oral-contrast-for-computed-tomography-of-the-abdomen-and-pelvis-a-pilot-study
#18
Joseph Basile, James F Kenny, Boris Khodorkovsky, Elias Youssef, Brahim Ardolic, Jerel Chacko, Barry Hahn
INTRODUCTION: Computed tomography (CT) of the abdomen and pelvis using only intravenous contrast has been shown to have a high degree of accuracy in evaluating abdominal pain. The aim of this study was to determine the effect on time to completion of study, time to radiologist read, and length of stay in the emergency department (ED) of implementing a protocol that stopped the routine use of oral contrast for CT of the abdomen and pelvis. METHODS: This was a single-center, retrospective cohort study...
March 6, 2018: Clinical Imaging
https://www.readbyqxmd.com/read/29526957/efficacy-of-oral-factor-xa-inhibitor-for-venous-thromboembolism-in-a-patient-with-antithrombin-deficiency
#19
Kentaro Minami, Koji Kumagai, Yoshinao Sugai, Kohki Nakamura, Shigeto Naito, Shigeru Oshima
A 19-year-old man was referred due to sudden onset of right foot pain and chest discomfort. Contrast-enhanced computed tomography revealed massive thrombi in the right pulmonary artery and femoral vein. The patient's father had experienced multiple recurrences of venous thromboembolism (VTE) and was diagnosed with inherited antithrombin deficiency by a genetic examination. The patient was administered the oral factor Xa inhibitor rivaroxaban (30 mg). After seven days, the thrombus disappeared. Rivaroxaban (15 mg) was continued for 6 months with no recurrence, indicating the efficacy of this factor Xa inhibitor for the treatment and prevention of VTE in patients with antithrombin deficiency...
March 9, 2018: Internal Medicine
https://www.readbyqxmd.com/read/29489658/positron-emission-tomography-computed-tomography-scan-of-vogt-koyanagi-harada-syndrome-with-associated-autoimmune-thyroid-disease-a-case-report-and-literature-review
#20
REVIEW
Ke-Hao Huang, Ming-Cheng Tai, Lung-Chi Lee, Tzu-Heng Weng, Yi-Hao Chen, Li-Fan Lin, Jiann-Torng Chen, Da-Wen Lu, Ching-Long Chen
RATIONALE: Vogt-Koyanagi-Harada (VKH) syndrome is a rare disease and could be associated with autoimmune thyroid disease (AITD). This report was aimed to investigate the utility of F-fludeoxyglucose positron emission tomography/computed tomography (F-FDG PET/CT) for the diagnosis of VKH syndrome with AITD and to perform a literature review on the association between the 2 diseases. PATIENT CONCERNS: A 55-year-old woman without the history of ocular trauma suffered from chronic headache...
March 2018: Medicine (Baltimore)
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