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https://www.readbyqxmd.com/read/28813195/prediction-of-therapeutic-response-of-hepatocellular-carcinoma-to-transcatheter-arterial-chemoembolization-based-on-pretherapeutic-dynamic-ct-and-textural-findings
#1
Hyun Jeong Park, Jung Hoon Kim, Seo-Youn Choi, Eun Sun Lee, Sang Joon Park, Jae Young Byun, Byung Ihn Choi
OBJECTIVE: The objective of our study was to assess the value of CT texture analysis for prediction of therapeutic response of hepatocellular carcinoma (HCC) to transcatheter arterial chemoembolization (TACE) with pretherapeutic dynamic CT. MATERIALS AND METHODS: We retrospectively analyzed 132 HCCs in 96 patients treated with TACE who underwent dynamic CT before initial TACE. Imaging findings and arterial enhancement ratios were analyzed. All HCCs were manually segmented, and their texture features were quantitatively extracted using in-house software...
August 16, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28812190/diagnostic-value-of-the-stand-alone-synthetic-image-in-digital-breast-tomosynthesis-examinations
#2
Julia Garayoa, Margarita Chevalier, Maria Castillo, Ignacio Mahillo-Fernández, Najim Amallal El Ouahabi, Carmen Estrada, Alejandro Tejerina, Olivia Benitez, Julio Valverde
OBJECTIVE: To demonstrate the non-inferiority of synthetic image (SI) mammography versus full-field digital mammography (FFDM) in breast tomosynthesis (DBT) examinations. METHODS: An observational, retrospective, single-centre, multireader blinded study was performed, using 2384 images to directly compare SI and FFDM based on Breast Imaging Reporting and Data System (BIRADS) categorisation and visibility of radiological findings. Readers had no access to digital breast tomosynthesis slices...
August 15, 2017: European Radiology
https://www.readbyqxmd.com/read/28812134/elevated-tumor-to-liver-uptake-ratio-tlr-from-18-f-fdg-pet-ct-predicts-poor-prognosis-in-stage-iia-colorectal-cancer-following-curative-resection
#3
Jun Huang, Liang Huang, Jiaming Zhou, Yinghua Duan, Zhanwen Zhang, Xiaoyan Wang, Pinzhu Huang, Shuyun Tan, Ping Hu, Jianping Wang, Meijin Huang
PURPOSE: The prognostic value of the tumor-to-liver uptake ratio (TLR) from 18-fluoro-2-deoxyglucose positron emission tomography/computed tomography ((18)F-FDG-PET/CT) in the early stage of colorectal cancer (CRC) is unclear. Notably, some stage IIA CRC patients experience early recurrence even after curative resection and might benefit from neoadjuvant or adjuvant chemotherapy. This study aims to evaluate whether elevated TLR from (18)F-FDG-PET/CT can predict poor prognosis in stage IIA CRC patients undergoing curative resection...
August 15, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28811848/skull-base-tumors-and-tumor-like-lesions-a-pictorial-review
#4
REVIEW
Akira Kunimatsu, Natsuko Kunimatsu
A number of tumors and tumor-like non-neoplastic lesions with different cell types on histology occur in the skull base. A wide variety in disease and lesion appearance often complicates the process of radiological diagnosis. The main role of radiographic imaging is the detection and characterization of skull base lesions, with evaluation of the extent of invasion or preservation of adjacent critical organs. Evaluation of the skull base anatomy and surgical planning by using image guidance are also important for surgeons...
2017: Polish Journal of Radiology
https://www.readbyqxmd.com/read/28811770/clinical-and-laboratory-profile-of-children-with-cystic-fibrosis-experience-of-a-tertiary-care-center-in-pakistan
#5
Danish Abdul Aziz, Abdul Gaffar Billoo, Ahad Qureshi, Misha Khalid, Salman Kirmani
OBJECTIVE: To determine the clinical presentation, diagnostic investigations and laboratory workup done in admitted children with cystic fibrosis at Aga Khan University Hospital Karachi, Pakistan. METHODS: This is athree years retrospective study from January 2013 to December 2015 conducted at The Aga Khan University Hospital Karachi Pakistan, enrolling admitted patient from birth to 15 years of either gender, diagnosed with CF on the basis of clinical features and positive sweat chloride test...
May 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28811010/distinct-clinical-characteristics-of-paroxysmal-nocturnal-hemoglobinuria-in-patients-in-southern-taiwan-a-multicenter-investigation
#6
Hui-Ching Wang, Ching-Yuan Kuo, I-Ting Liu, Tsai-Yun Chen, Yu-Hsiang Chang, Shyh-Jer Lin, Shih-Feng Cho, Yi-Chang Liu, Ta-Chih Liu, Sheng-Fung Lin, Chao-Sung Chang
Paroxysmal nocturnal hemoglobinuria (PNH) is an extremely rare acquired disorder. The aim of this study was to investigate the demographics, clinical manifestations, and outcomes of PNH patients in southern Taiwan. Data on PNH patients diagnosed over a 30-year period (1985-2015) were retrospectively collected from four tertiary medical centers in southern Taiwan. Blood samples were collected for hematologic panel testing and flow cytometry detection of PNH clones. Radiologic studies were performed to assess the frequency of complications...
August 2017: Kaohsiung Journal of Medical Sciences
https://www.readbyqxmd.com/read/28808792/using-natural-language-processing-of-free-text-radiology-reports-to-identify-type-1-modic-endplate-changes
#7
Hannu T Huhdanpaa, W Katherine Tan, Sean D Rundell, Pradeep Suri, Falgun H Chokshi, Bryan A Comstock, Patrick J Heagerty, Kathryn T James, Andrew L Avins, Srdjan S Nedeljkovic, David R Nerenz, David F Kallmes, Patrick H Luetmer, Karen J Sherman, Nancy L Organ, Brent Griffith, Curtis P Langlotz, David Carrell, Saeed Hassanpour, Jeffrey G Jarvik
Electronic medical record (EMR) systems provide easy access to radiology reports and offer great potential to support quality improvement efforts and clinical research. Harnessing the full potential of the EMR requires scalable approaches such as natural language processing (NLP) to convert text into variables used for evaluation or analysis. Our goal was to determine the feasibility of using NLP to identify patients with Type 1 Modic endplate changes using clinical reports of magnetic resonance (MR) imaging examinations of the spine...
August 14, 2017: Journal of Digital Imaging: the Official Journal of the Society for Computer Applications in Radiology
https://www.readbyqxmd.com/read/28808452/root-morphology-and-canal-configuration-of-first-and-second-maxillary-molars-in-a-selected-iranian-population-a-cone-beam-computed-tomography-evaluation
#8
Abbasali Khademi, Asieh Zamani Naser, Zahra Bahreinian, Mojdeh Mehdizadeh, Mojtaba Najarian, Saber Khazaei
INTRODUCTION: The aim of this investigation was to evaluate root canal morphology of maxillary first and second molars and also to assess the prevalence and morphology of the second mesiobuccal canal (MB2) in these teeth, using cone-beam computed tomography (CBCT). METHODS AND MATERIALS: In this cross-sectional study, the total of 470 CBCT images from the archive of Radiology Department of Isfahan University of Medical Sciences (IUMS), Iran, was evaluated and 295 images were selected...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28808447/predictors-for-mortality-among-multidrug-resistant-tuberculosis-patients-in-tanzania
#9
Edson W Mollel, Jaffu O Chilongola
PROBLEM: Factors related to MDRTB mortality in Tanzania have not been adequately explored and reported. OBJECTIVES: To determine demographic, clinical, radiographic, and laboratory factors associated with MDRTB mortality in a Tanzanian TB Referral Hospital. METHODOLOGY: This was a cross-sectional study with 193 participants. Demographic, clinical, laboratory, and radiological data were collected, and their associations with mortality among MDRTB patients were determined...
2017: Journal of Tropical Medicine
https://www.readbyqxmd.com/read/28807527/does-ct-help-in-predicting-preepiglottic-space-invasion-in-laryngeal-carcinoma
#10
Gülpembe Bozkurt, Özlem Ünsal, İrfan Çelebi, Burak Ayhan, Umman Guliyev, Pınar Akova, Tülay Başak, Berna Uslu Coşkun
OBJECTIVE: Evaluating preepiglottic space involvement in laryngeal cancer by CT may lead misinterpretation. We sought to understand the causes of misinterpretation in evaluating the preepiglottic space by CT and assessed the effects of misinterpretation in treatment plans of patients with laryngeal squamous cell carcinomas. METHODS: Specimen histopathology reports of 102 (99 male, 3 female) patients who underwent total or partial laryngectomy due to supraglottic and/or transglottic laryngeal carcinoma were reviewed...
August 11, 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/28804643/local-staging-of-sigmoid-colon-cancer-using-mri
#11
Claus Dam, Jan Lindebjerg, Anders Jakobsen, Lars Henrik Jensen, Hans Rahr, Søren Rafael Rafaelsen
BACKGROUND: An accurate radiological staging of colon cancer is crucial to select patients who may benefit from neoadjuvant chemotherapy. PURPOSE: To evaluate the diagnostic accuracy of preoperative magnetic resonance imaging (MRI) in identifying locally advanced sigmoid colon cancer, poor prognostic factors, and the inter-observer variation of the tumor apparent diffusion coefficient (ADC) values of diffusion-weighted imaging (DWI). MATERIAL AND METHODS: Using 1...
July 2017: Acta Radiologica Open
https://www.readbyqxmd.com/read/28802425/outcomes-of-dynamic-hip-screw-augmented-with-trochanteric-wiring-for-treatment-of-unstable-type-a2-intertrochanteric-femur-fractures
#12
Chetan Puram, Chetan Pradhan, Atul Patil, Vivek Sodhai, Parag Sancheti, Ashok Shyam
BACKGROUND: Posteromedial and greater trochanteric fragments are a major cause of telescoping and medialization of the femoral shaft in an unstable intertrochanteric fracture. This leads to significant limb shortening, fracture collapse in varus position and implant failure, which can be prevented by trochanteric wiring in addition to dynamic hip screw (DHS) fixation. The purpose of our study is to assess the outcomes of DHS augmented with trochanteric wiring in unstable type A2 intertrochanteric fractures...
August 2017: Injury
https://www.readbyqxmd.com/read/28799877/volume-of-cerebrospinal-fluid-drainage-as-a-predictor-for-pretreatment-aneurysmal-rebleeding
#13
Jasper H van Lieshout, Ina Pumplün, Igor Fischer, Marcel A Kamp, Jan F Cornelius, Hans J Steiger, Hieronymus D Boogaarts, Athanasios K Petridis, Kerim Beseoglu
OBJECTIVE Initiation of external CSF drainage has been associated with a significant increase in rebleeding probability after aneurysmal subarachnoid hemorrhage (aSAH). However, the implications for acute management are uncertain. The purpose of this study was to evaluate the role of the amount of drained CSF on aneurysmal rebleeding. METHODS Consecutive patients with aSAH were analyzed retrospectively. Radiologically confirmed cases of aneurysmal in-hospital rebleeding were identified and predictor variables for rebleeding were retrieved from hospital records...
August 11, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28799451/radiological-clinical-and-audiological-evaluation-of-jugular-bulb-vestibular-aqueduct-dehiscence
#14
Asli Tanrivermis Sayit, Muzaffer Elmali, Ozgur Kemal, Yuksel Terzi
OBJECTIVE: The aim of this study is to determine the prevalence of jugular bulb-vestibular aqueduct dehiscence (JBVAD) in patients undergoing temporal bone multidetector computed tomography (MDCT) and assess the relationship between JBVAD and hearing loss with the findings of audiometry. METHODS: About 1503 temporal bone MDCT scans were evaluated for the prevalence of JBVAD. Correlation of the imaging findings and audiometric data was performed. Patients were divided into two groups, those with and those without hearing loss, and were statistically compared...
August 11, 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28798929/accuracy-of-bone-measurements-in-the-vicinity-of-titanium-implants-in-cbct-data-sets-a-comparison-of-radiological-and-histological-findings-in-minipigs
#15
Alexander Gröbe, Jan Semmusch, Maximilian Schöllchen, Henning Hanken, Michael Hahn, Wolfgang Eichhorn, Gerhard Schön, Ole Jung, Jamal M Stein, Aline Reitmeier, Max Heiland, Ralf Smeets, Clarissa Precht
PURPOSE: The aim of this animal study was the determination of accuracy of bone measurements in CBCT (cone-beam computed tomography) in close proximity to titanium implants. MATERIAL AND METHODS: Titanium implants were inserted in eight Göttingen minipigs. 60 implants were evaluated histologically in ground section specimen and radiologically in CBCT in regard to thickness of the buccal bone. With random intercept models, the difference of histologic measurements and CBCT measurements of bone thickness was calculated...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28798267/pretreatment-predictors-of-malignant-evolution-in-patients-with-ischemic-stroke-undergoing-mechanical-thrombectomy
#16
Alessandro Davoli, Caterina Motta, Giacomo Koch, Marina Diomedi, Simone Napolitano, Angela Giordano, Marta Panella, Daniele Morosetti, Sebastiano Fabiano, Roberto Floris, Roberto Gandini, Fabrizio Sallustio
BACKGROUND: Few data exist on malignant middle cerebral artery infarction (MMI) among patients with acute ischemic stroke (AIS) after endovascular treatment (ET). Numerous predictors of MMI evolution have been proposed, but a comprehensive research of patients undergoing ET has never been performed. Our purpose was to find a practical model to determine robust predictors of MMI in patients undergoing ET. METHODS: Patients from a prospective single-center database with AIS secondary to large intracranial vessel occlusion of the anterior circulation, treated with ET, were retrospectively analyzed...
August 10, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28797980/can-fan-beam-ict-accurately-predict-indirect-decompression-in-miss-fusion-procedures
#17
Insa Janssen, Gernot Lang, Rodrigo Navarro-Ramirez, Ajit Jada, Connor Berlin, Aaron Hilis, Micaella Zubkov, Lena Gandevia, Roger Härtl
BACKGROUND: Recently, a novel mobile intraoperative fan-beam CT (iFBCT) was introduced, allowing for real time navigation and immediate intraoperative evaluation of neural decompression in spine surgery. This study sought to investigate whether intraoperatively assessed neural decompression during minimally invasive spine surgery (MISS) has a predictive value for clinical and radiographic outcome. METHODS: A retrospective study of patients undergoing iCT-guided extreme lateral interbody fusion (XLIF) or transforaminal lumbar interbody fusion (TLIF) was conducted...
August 7, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28797910/environmental-evaluation-of-natural-radioactivity-in-soil-near-a-lignite-burning-power-plant-in-turkey
#18
E Gören, Ş Turhan, A Kurnaz, A M K Garad, C Duran, F A Uğur, Z Yeğingil
Natural radionuclides are released into the environment together with fly ash from the coal-burning power plant and cause an increase in the natural radioactivity in environmental samples. The study concerns to the evaluation the influence of Kangal lignite-burning power plant (LBPP) with a power of 457 MWe, which has been in operation since 1989, on natural radionuclide a concentration in surface soil samples around it. Activity concentrations of natural radionuclides ((226)Ra, (232)Th, (40)K and (222)Rn) in the soil samples, and emanation coefficient (EC) and mass (ERM) and surface (ERS) exhalation rate of radon were determined by using a gamma-ray spectrometer with an HPGe detector...
August 1, 2017: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/28796066/a-new-diagnostic-marker-for-differentiating-multicentric-gliomas-from-multiple-intracranial-diffuse-large-b-cell-lymphomas-on-18f-fdg-pet-images
#19
Kai Wang, Xiaobin Zhao, Qian Chen, Di Fan, Zhen Qiao, Song Lin, Tao Jiang, Jianping Dai, Lin Ai
Intracranial gliomas and lymphomas may share similar radiological manifestations, while the treatment strategies for them are different. The aim of the study was to investigate the diagnostic value of fluorine-18-fluoro-2-deoxy-D-glucose (F-FDG) positron emission computed tomography (PET) for differentiation of multicentric gliomas and intracranial multiple diffuse large B-cell lymphomas (DLBCLs) as a study of diagnostic accuracy.A total of 32 patients with multiple intracranial tumors visualized on contrast-enhanced magnetic resonance imaging (MRI) were retrospectively evaluated...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28791479/using-external-lumbar-csf-drainage-to-treat-communicating-external-hydrocephalus-in-adult-patients-after-acute-traumatic-or-non-traumatic-brain-injury
#20
Romain Manet, Jean-François Payen, Romain Guerin, Orianne Martinez, Serge Hautefeuille, Gilles Francony, Laurent Gergelé
BACKGROUND: Despite various treatments to control intracranial pressure (ICP) after brain injury, patients may present a late onset of high ICP or a poor response to medications. External lumbar drainage (ELD) can be considered a therapeutic option if high ICP is due to communicating external hydrocephalus. We aimed at describing the efficacy and safety of ELD used in a cohort of traumatic or non-traumatic brain-injured patients. METHODS: In this multicentre retrospective analysis, patients had a delayed onset of high ICP after the initial injury and/or a poor response to ICP treatments...
August 8, 2017: Acta Neurochirurgica
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