keyword
MENU ▼
Read by QxMD icon Read
search

Medical imaging

keyword
https://www.readbyqxmd.com/read/29777819/7-tesla-magnetic-resonance-imaging-of-caudal-anterior-cingulate-and-posterior-cingulate-cortex-atrophy-in-patients-with-trigeminal-neuralgia
#1
Hyeong Cheol Moon, Chan-A Park, Yeong-Jae Jeon, Soon Tae You, Hyun Man Baek, Youn Joo Lee, Chul Beom Cho, Chae Joon Cheong, Young Seok Park
The cingulate cortex (CC) is a brain region that plays a key role in pain processing, but CC abnormalities are not unclear in patients with trigeminal neuralgia (TN). The purpose of this study was to determine the central causal mechanisms of TN and the surrounding brain structure in healthy controls and patients with TN using 7 Tesla (T) magnetic resonance imaging (MRI). Whole-brain parcellation in gray matter volume and thickness was assessed in 15 patients with TN and 16 healthy controls matched for sex, age, and regional variability using T1-weighted imaging...
May 16, 2018: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/29777611/extragastrointestinal-stromal-tumor-egist-a-16-year-experience-of-13-cases-diagnosed-at-a-single-center
#2
Engin Hatipoğlu
BACKGROUND Gastrointestinal stromal tumor (GISTs) rarely occurs outside the GI tract as extragastrointestinal stromal tumor (EGIST). The aim of this study was to review the clinical presentation, diagnosis, and outcome of EGIST at a single center. MATERIAL AND METHODS The study was a retrospective study performed at Istanbul University Hospital in a 16-year period and included patients with a histopathological diagnosis of EGIST confirmed to arise outside the GI tract. The patients' available medical records included patient demographics, imaging and surgical data, and diagnostic histopathology reports...
May 19, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29777402/a-national-study-of-the-use-of-asymptomatic-systemic-imaging-for-surveillance-following-breast-cancer-treatment-aft-01
#3
Jessica R Schumacher, Heather B Neuman, George J Chang, Benjamin D Kozower, Stephen B Edge, Menggang Yu, David J Vanness, Yajuan Si, Elizabeth A Jacobs, Amanda B Francescatti, Patricia A Spears, Jeffrey Havlena, Taiwo Adesoye, Daniel McKellar, David Winchester, Elizabeth S Burnside, Caprice C Greenberg
BACKGROUND: Although not guideline recommended, studies suggest 50% of locoregional breast cancer patients undergo systemic imaging during follow-up, prompting its inclusion as a Choosing Wisely measure of potential overuse. Most studies rely on administrative data that cannot delineate scan intent (prompted by signs/symptoms vs. asymptomatic surveillance). This is a critical gap as intent is the only way to distinguish overuse from appropriate care. OBJECTIVE: Our aim was to assess surveillance systemic imaging post-breast cancer treatment in a national sample accounting for scan intent...
May 17, 2018: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/29777324/a-dependable-massive-storage-service-for-medical-imaging
#4
Marco Antonio Núñez-Gaona, Ricardo Marcelín-Jiménez, Josefina Gutiérrez-Martínez, Heriberto Aguirre-Meneses, José Luis Gonzalez-Compean
We present the construction of Babel, a distributed storage system that meets stringent requirements on dependability, availability, and scalability. Together with Babel, we developed an application that uses our system to store medical images. Accordingly, we show the feasibility of our proposal to provide an alternative solution for massive scientific storage and describe the software architecture style that manages the DICOM images life cycle, utilizing Babel like a virtual local storage component for a picture archiving and communication system (PACS-Babel Interface)...
May 18, 2018: Journal of Digital Imaging: the Official Journal of the Society for Computer Applications in Radiology
https://www.readbyqxmd.com/read/29777175/artificial-intelligence-in-radiology
#5
REVIEW
Ahmed Hosny, Chintan Parmar, John Quackenbush, Lawrence H Schwartz, Hugo J W L Aerts
Artificial intelligence (AI) algorithms, particularly deep learning, have demonstrated remarkable progress in image-recognition tasks. Methods ranging from convolutional neural networks to variational autoencoders have found myriad applications in the medical image analysis field, propelling it forward at a rapid pace. Historically, in radiology practice, trained physicians visually assessed medical images for the detection, characterization and monitoring of diseases. AI methods excel at automatically recognizing complex patterns in imaging data and providing quantitative, rather than qualitative, assessments of radiographic characteristics...
May 17, 2018: Nature Reviews. Cancer
https://www.readbyqxmd.com/read/29776902/an-internet-based-radiology-course-in-medical-school-comparison-of-academic-performance-of-students-on-campus-versus-those-with-absenteeism-due-to-residency-interviews
#6
Andrew George Alexander, Deborah Deas, Paul Eric Lyons
BACKGROUND: Imaging and its optimal use are imperative to the practice of medicine, yet many students don't receive a formal education in radiology. Concurrently, students look for ways to take time away from medical school for residency interviewing. Web-based instruction provides an opportunity to combine these imperatives using online modalities. OBJECTIVE: A largely Web-based course in radiology during the 4th year of medical school was evaluated both for its acceptance to students who needed to be away from campus for interviews, and its effectiveness on a nationally administered standardized test...
May 18, 2018: JMIR Medical Education
https://www.readbyqxmd.com/read/29776790/-modern-treatment-of-mesenteric-ischemia
#7
Alexandre Nuzzo, Audrey Huguet, Olivier Corcos
Acute mesenteric ischemia is a highly morbid affliction which requires urgent care. Acute mesenteric ischemia consists in an ischemia injury of the small bowel, secondary to vascular insufficiency, either occlusive (thrombosis, embolism, arterial, venous) or non-occlusive (low flow or vasospasm). Given that the superior mesenteric artery supplies the small bowel as well as the right part of the colon, any ischemic process involving the right colon should be considered an acute mesenteric ischemia until proven otherwise...
May 15, 2018: La Presse Médicale
https://www.readbyqxmd.com/read/29776667/doctoral-theses-in-diagnostic-imaging-a-study-of-spanish-production-between-1976-and-2011
#8
K Machan, F Sendra Portero
OBJECTIVE: To analyze the production of doctoral theses in diagnostic imaging in Spain in the period comprising 1976 through 2011 with the aim of a) determining the number of theses and their distribution over time, b) describing the production in terms of universities and directors, and c) analyzing the content of the theses according to the imaging technique, anatomic site, and type of research used. MATERIAL AND METHODS: The TESEO database was searched for "radiología" and/or "diagnóstico por imagen" and for terms related to diagnostic imaging in the title of the thesis...
May 15, 2018: Radiología
https://www.readbyqxmd.com/read/29776653/accuracy-of-phase-contrast-velocity-mapping-proximal-and-distal-to-stent-artifact-during-cardiac-magnetic-resonance-imaging
#9
Catherine M Avitabile, Matthew A Harris, Ravi S Doddasomayajula, Steven G Chopski, Matthew J Gillespie, Yoav Dori, Andrew C Glatz, Mark A Fogel, Kevin K Whitehead
Little data are available on the accuracy of phase-contrast magnetic resonance imaging (PC-MRI) velocity mapping in the vicinity of intravascular metal stents other than nitinol stents. Therefore, we sought to determine this accuracy using in vitro experiments. An in vitro flow phantom was used with 3 stent types: (1) 316L stainless steel, (2) nitinol self-expanding, and (3) platinum-iridium. Steady and pulsatile flow was delivered with a magnetic resonance imaging-compatible pump (CardioFlow 5000, Shelley Medical, London, Ontario, Canada)...
April 20, 2018: American Journal of Cardiology
https://www.readbyqxmd.com/read/29776385/generation-of-ventilation-perfusion-ratio-map-in-surgical-patients-by-dual-energy-ct-after-xenon-inhalation-and-intravenous-contrast-media
#10
Kohei Aoki, Yotaro Izumi, Wataru Watanabe, Yuji Shimizu, Hisato Osada, Norinari Honda, Toshihide Itoh, Mitsuo Nakayama
BACKGROUND: While many studies have evaluated the change in lung volume before and after lung resection and correlated this with pulmonary function test results, there is very little evidence on the changes in ventilation perfusion ratio (V/Q) before versus after lung resection. In the present pilot study, we evaluated if V/Q mapping can be constructed using dual energy CT images. METHODS: Thirty-one lung cancer patients planned for pulmonary resection were included in this study...
May 18, 2018: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/29775951/retinal-blood-vessel-segmentation-using-fully-convolutional-network-with-transfer-learning
#11
Zhexin Jiang, Hao Zhang, Yi Wang, Seok-Bum Ko
Since the retinal blood vessel has been acknowledged as an indispensable element in both ophthalmological and cardiovascular disease diagnosis, the accurate segmentation of the retinal vessel tree has become the prerequisite step for automated or computer-aided diagnosis systems. In this paper, a supervised method is presented based on a pre-trained fully convolutional network through transfer learning. This proposed method has simplified the typical retinal vessel segmentation problem from full-size image segmentation to regional vessel element recognition and result merging...
April 26, 2018: Computerized Medical Imaging and Graphics: the Official Journal of the Computerized Medical Imaging Society
https://www.readbyqxmd.com/read/29775753/long-non-coding-rna-biomarker-for-human-laryngeal-squamous-cell-carcinoma-prognosis
#12
Jingjing Chen, Zhisen Shen, Hongxia Deng, Wei Zhou, Qi Liao, Ying Mu
Long non-coding RNAs (lncRNA) were discovered in tumors. The regulation of lncRNA in human laryngeal squamous cell carcinoma (LSCC) remains incomplete. Uncovering the potential of lncRNA to stratify the prognosis of LSCC and streamline the vast amount of clinical information will affect medical interventions. The surgical resected LSCC tissues, adjacent non-cancerous tissues (ANCT) and lymph node metastatic tissue (LNM) were collected from 76 patients for lncRNA AC008440.10 expression assay. The stages of LSCC and LNM were classified accordingly...
May 15, 2018: Gene
https://www.readbyqxmd.com/read/29775153/feasibility-safety-and-changes-in-systolic-blood-pressure-associated-with-endovascular-revascularization-of-symptomatic-and-chronically-occluded-cervical-internal-carotid-artery-using-a-newly-suggested-radiographic-classification-of-chronically-occluded-cervical
#13
David Hasan, Mario Zanaty, Robert M Starke, Elias Atallah, Nohra Chalouhi, Pascal Jabbour, Amit Singla, Waldo R Guerrero, Daichi Nakagawa, Edgar A Samaniego, Nnenna Mbabuike, Rabih G Tawk, Adnan H Siddiqui, Elad I Levy, Roberta L Novakovic, Jonathan White, Clemens M Schirmer, Thomas G Brott, Hussain Shallwani, L Nelson Hopkins
OBJECTIVE The overall risk of ischemic stroke from a chronically occluded internal carotid artery (COICA) is around 5%-7% per year despite receiving the best available medical therapy. Here, authors propose a radiographic classification of COICA that can be used as a guide to determine the technical success and safety of endovascular recanalization for symptomatic COICA and to assess the changes in systemic blood pressure following successful revascularization. METHODS The radiographic images of 100 consecutive subjects with COICA were analyzed...
May 18, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29775027/-clinical-research-of-different-characteristics-of-fungal-ball-sinusitis
#14
M J Wang, B Zhou, Y C Li, S J Cui, Q Huang
Objective: The aim of this study is to investigate the clinical features of different subtypes of fungal ball sinusitis. Method: Four hundred and forty-nine cases with fungal ball rhinosinusitis (FBS) were involved in this retrospective analysis. The clinical features including symptoms, signs, and imaging scans, pathological results were all collected for each patient and the patients were classified into different subtypes according to these clinical features and the follow-up treatment. Result: In this retrospective study, 449 patients who diagnosed with fungal ball sinusitis were involved...
February 2018: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29774440/in-vivo-estimation-of-elastic-heterogeneity-in-an-infarcted-human-heart
#15
Gabriel Balaban, Henrik Finsberg, Simon Funke, Trine F Håland, Einar Hopp, Joakim Sundnes, Samuel Wall, Marie E Rognes
In myocardial infarction, muscle tissue of the heart is damaged as a result of ceased or severely impaired blood flow. Survivors have an increased risk of further complications, possibly leading to heart failure. Material properties play an important role in determining post-infarction outcome. Due to spatial variation in scarring, material properties can be expected to vary throughout the tissue of a heart after an infarction. In this study we propose a data assimilation technique that can efficiently estimate heterogeneous elastic material properties in a personalized model of cardiac mechanics...
May 17, 2018: Biomechanics and Modeling in Mechanobiology
https://www.readbyqxmd.com/read/29774423/diagnosis-and-management-of-gynecomastia-for-urologists
#16
REVIEW
Lee Baumgarten, Ali A Dabaja
PURPOSE OF REVIEW: Our aim is to review the steps of diagnosis and management of gynecomastia with a special focus on treatment of gynecomastia associated with androgen deprivation therapy for prostate cancer. RECENT FINDINGS: Recent studies investigating tamoxifen and radiation therapy for both therapy and prophylaxis of bicalutamide-induced gynecomastia are reviewed. Gynecomastia is a common clinical problem, affecting between one and two thirds of middle-aged men...
May 17, 2018: Current Urology Reports
https://www.readbyqxmd.com/read/29774184/a-systematic-review-of-clinical-value-of-three-dimensional-printing-in-renal-disease
#17
Zhonghua Sun, Dongting Liu
The aim of this systematic review is to analyse current literature related to the clinical value of three-dimensional (3D) printed models in renal disease. A literature search of PubMed and Scopus databases was performed to identify studies reporting the clinical application and usefulness of 3D printed models in renal disease. Fifteen studies were found to meet the selection criteria and were included in the analysis. Eight of them provided quantitative assessments with five studies focusing on dimensional accuracy of 3D printed models in replicating renal anatomy and tumour, and on measuring tumour volume between 3D printed models and original source images and surgical specimens, with mean difference less than 10%...
April 2018: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/29774173/role-of-interventional-radiology-in-the-management-of-peripheral-vascular-malformations-a-tertiary-care-center-experience
#18
Misbah Tahir, Muhammad Anees Mumtaz, Anum Sultan, Jawaid Iqbal, Raza Sayani
Peripheral vascular malformations (PVMs) represent a wide spectrum of vascular abnormalities occurring due to anomalous connections between arteries, veins, capillaries, and lymphatic channels at the microscopic level, in different combinations. They are rare and challenging to treat. Different operators may have different approaches based on their experience and expertise. Sclerotherapy either alone or in combination with embolization has been used as an independent method for the treatment of PVMs. Purpose The aim of this study is to assess the safety and efficacy of sclerotherapy and embolization, with or without surgery, for the treatment of peripheral vascular malformations, based on our approach...
March 16, 2018: Curēus
https://www.readbyqxmd.com/read/29773701/accuracy-of-lung-cancer-icd-9-cm-codes-in-umbria-napoli-3-sud-and-friuli-venezia-giulia-administrative-healthcare-databases-a-diagnostic-accuracy-study
#19
Alessandro Montedori, Ettore Bidoli, Diego Serraino, Mario Fusco, Gianni Giovannini, Paola Casucci, David Franchini, Annalisa Granata, Valerio Ciullo, Maria Francesca Vitale, Michele Gobbato, Rita Chiari, Francesco Cozzolino, Massimiliano Orso, Walter Orlandi, Iosief Abraha
OBJECTIVES: To assess the accuracy of International Classification of Diseases 9th Revision-Clinical Modification (ICD-9-CM) codes in identifying subjects with lung cancer. DESIGN: A cross-sectional diagnostic accuracy study comparing ICD-9-CM 162.x code (index test) in primary position with medical chart (reference standard). Case ascertainment was based on the presence of a primary nodular lesion in the lung and cytological or histological documentation of cancer from a primary or metastatic site...
May 17, 2018: BMJ Open
https://www.readbyqxmd.com/read/29773695/automated-computer-guided-pasi-measurements-by-digital-image-analysis-versus-conventional-physicians-pasi-calculations-study-protocol-for-a-comparative-single-centre-observational-study
#20
Christine Fink, Lorenz Uhlmann, Christina Klose, Holger A Haenssle
INTRODUCTION: Reliable and accurate assessment of severity in psoriasis is very important in order to meet indication criteria for initiation of systemic treatment or to evaluate treatment efficacy. The most acknowledged tool for measuring the extent of psoriatic skin changes is the Psoriasis Area and Severity Index (PASI). However, the calculation of PASI can be tedious and subjective and high intraobserver and interobserver variability is an important concern. Therefore, there is a great need for a standardised and objective method that guarantees a reproducible PASI calculation...
May 17, 2018: BMJ Open
keyword
keyword
23105
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"