keyword
MENU ▼
Read by QxMD icon Read
search

Image interpretation

keyword
https://www.readbyqxmd.com/read/29245113/the-temporal-relationship-between-activity-of-the-pelvic-floor-muscles-and-motion-of-selected-urogenital-landmarks-in-healthy-nulliparous-women
#1
Stéphanie Thibault-Gagnon, Cindy Auchincloss, Ryan Graham, Linda McLean
AIMS: The purpose of this study was to investigate the relationship between pelvic floor muscle (PFM) electromyographic (EMG) activation and urogenital landmark motion measured using 2D transperineal ultrasound (US) imaging. METHODS: Eight healthy, nulliparous women performed maximum voluntary PFM contractions while EMG and transperineal US images were acquired simultaneously. Changes in the levator plate length (LPL), bladder neck (BN) position and urethral position were determined by visual inspection...
December 6, 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/29243502/evidence-based-management-of-incidental-focal-uptake-of-fluorodeoxyglucose-on-pet-ct
#2
Deborah Pencharz, Malavika Nathan, Thomas L Wagner
Focal incidental uptake, with or without CT abnormalities, is a common finding on FDG PET/CT and evidence based management for this type of uptake is lacking. This article reviews the evidence on focal incidental uptake including the incidence of malignancy, differential diagnosis and imaging criteria which can be used to further characterise it. The article focusses on PET rather than CT criteria. The strength of the evidence base is highly variable ranging from systematic reviews and meta-analyses to a virtual absence of evidence...
December 15, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/29243467/high-resolution-ct-of-the-lungs-indications-and-diagnosis
#3
Helena Lauri
High-resolution computed tomography (HRCT) is a method of examination which is more precise than chest 2-rat in the diagnosis and monitoring of diseases of the lung tissue and the airways. Modern CT equipment enables a volume HRCT scan covering the whole lung tissue. HRCT slices can also be constructed from contrast-enhanced CT scans of the chest of the whole body. HRCT of the lungs can be applied to the diagnosis of both acute and more chronic diffuse diseases of the lung tissue and the airways. The best-known indications for HRCT include idiopathic interstitial pneumonias, such as idiopathic pulmonary fibrosis...
2017: Duodecim; Lääketieteellinen Aikakauskirja
https://www.readbyqxmd.com/read/29242736/inguinal-herniation-of-urinary-bladder-on-f-18-sodium-fluoride-naf-pet-ct
#4
Sharjeel Usmani, Fahad Marafi, Najeeb Ahmed, Nafisah Kazem
Inguinal herniation of urinary bladder is uncommon and usually an incidental finding in asymptomatic patients. In some of these patients, residual urine volume and consequently, urinary tracer activity can be higher in the herniated bladder than the native bladder, in which case interpretation can be challenging on conventional planar imaging. We describe an interesting case of physiological activity in a herniated bladder simulating a "tear-drop". This case serves an important reminder that whilst F-18 NaF PET-CT has a similar spectrum of urinary activity to conventional bone scintigraphy; morphological correlation on hybrid imaging is invaluable in ensuring the physiological nature of uptake...
December 2017: Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29242734/images-from-18f-dopa-scan-in-congenital-hyperinsulinism-not-always-a-clue-for-diagnosis
#5
Evelina Maines, Luca Giacomello, Mirko D'Onofrio, Matteo Salgarello, Rossella Gaudino, Laura Baggio, Andrea Bordugo
Congenital hyperinsulinism (CHI) is the most common cause of persistent hypoglycaemia in childhood (Horm Res 70:65-72, 2008; J Clin Endocr Metab 93:869-875, 2008). 18-Fluoro-L-dihydroxy-phenylalanine (18F-DOPA) positron emission tomography (PET) can detect areas of increased activity in the pancreas and may differentiate focal from diffuse CHI (J Clin Endocr Metab 93:869-875, 2008; Radiology 253:216-222, 2009). We here report the case of a girl who complained of recurrent episodes of severe hypoglycaemia despite previous partial pancreatectomy...
December 2017: Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29242526/percentiles-for-skeletal-muscle-index-area-and-radiation-attenuation-based-on-computed-tomography-imaging-in-a-healthy-caucasian-population
#6
A van der Werf, J A E Langius, M A E de van der Schueren, S A Nurmohamed, K A M I van der Pant, S Blauwhoff-Buskermolen, N J Wierdsma
BACKGROUND/OBJECTIVES: Muscle mass is a key determinant of nutritional status and associated with outcomes in several patient groups. Computed tomography (CT) analysis is increasingly used to assess skeletal muscle area (SMA), skeletal muscle index (SMI) and muscle radiation attenuation (MRA). However, interpretation of these muscle parameters is difficult since values in a healthy population are lacking. The aim of this study was to provide sex specific percentiles for SMA, SMA and MRA in a healthy Caucasian population and to examine the association with age and BMI in order to define age- and BMI specific percentiles...
December 15, 2017: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/29241019/quantitative-analysis-of-a-multiplexed-immunofluorescence-panel-in-t-cell-lymphoma
#7
Siok-Bian Ng, Shuangyi Fan, Shoa-Nian Choo, Michal Hoppe, Hoang Mai Phuong, Sanjay De Mel, Anand D Jeyasekharan
Immunohistochemistry (IHC) provides clinically useful information on protein expression in cancer cells. However, quantification of colocalizing signals using conventional IHC and visual scores is challenging. Here we describe the application of quantitative immunofluorescence in angioimmunoblastic T-cell lymphoma (AITL), a peripheral T-cell lymphoma characterized by cellular heterogeneity that impedes IHC interpretation and quantification. A multiplexed immunofluorescence (IF) panel comprising T- and B-lymphocyte markers along with T-follicular helper (TFH) markers was validated for appropriate cellular localization in sections of benign tonsillar tissue and tested in two samples of AITL, using a Vectra microscope for spectral imaging and InForm software for analysis...
December 1, 2017: SLAS Technology
https://www.readbyqxmd.com/read/29240817/more-visual-mind-wandering-occurrence-during-visual-task-performance-modality-of-the-concurrent-task-affects-how-the-mind-wanders
#8
HeeSun Choi, Michael Geden, Jing Feng
Mind wandering has been considered as a mental process that is either independent from the concurrent task or regulated like a secondary task. These accounts predict that the form of mind wandering (i.e., images or words) should be either unaffected by or different from the modality form (i.e., visual or auditory) of the concurrent task. Findings from this study challenge these accounts. We measured the rate and the form of mind wandering in three task conditions: fixation, visual 2-back, and auditory 2-back...
2017: PloS One
https://www.readbyqxmd.com/read/29239850/small-bowel-capsule-endoscopy-may-we-delegate-it-to-nurses
#9
Johann Dreanic, Maximilien Barret, Marion Dhooge, Marianne Gaudric, Sarah Leblanc, Vered Abitbol, Frederic Prat, Stanislas Chaussade, Romain Coriat
AIM: Small bowel capsule endoscopy (CE) is a non-invasive and validated technique allowing the visualization of the small intestine mucosa. It generated more than 40,000 images per examination and induced a long median time of medical reading that may exceed 1 hour. In a transfer of skills' program, the CE reading might be transferred to nurses. We herein evaluate and present a feasibility study of the CE to nurses. METHODS: Nurses experienced in endoscopy were trained for small bowel CE reading, selection and interpretation of pathological images...
November 24, 2017: Clinics and Research in Hepatology and Gastroenterology
https://www.readbyqxmd.com/read/29239261/white-matter-tract-integrity-an-indicator-of-axonal-pathology-after-mild-traumatic-brain-injury
#10
Sohae Chung, Els Fieremans, Xiuyuan Wang, Nuri E Kucukboyaci, Charles J Morton, James S Babb, Prin Amorapanth, Farng-Yang Foo, Dmitry S Novikov, Steven R Flanagan, Joseph F Rath, Yvonne W Lui
We seek to elucidate the underlying pathophysiology of injury sustained after mild traumatic brain injury (MTBI) using multi-shell diffusion MRI, deriving compartment-specific WM tract integrity (WMTI) metrics. WMTI allows a more biophysical interpretation of WM changes by describing microstructural characteristics in both intra- and extra-axonal environments. Thirty-two patients with MTBI within 30 days of injury and twenty-one age- and sex-matched controls were imaged on a 3T MR scanner. Multi-shell diffusion acquisition was performed with 5 b-values (250 - 2500 s/mm<sup>2</sup>) along 6 - 60 diffusion encoding directions...
December 14, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29239223/raman-infrared-and-laser-induced-breakdown-spectroscopy-identification-of-particles-in-raw-materials
#11
Kathryn Lee, Markus Lankers, Oliver Valet
Raw materials need to be of a certain quality with respect to physical and chemical composition. They also need to have no contaminants, including particles, because these could indicate raw material impurities or contaminate the product. Particle identification allows determination of process conditions that caused them and whether the quality of the final product is acceptable. Particles may appear to the eye to be very different things than they actually are. They may be coated with the raw material and may consist of several components; therefore, chemical and elemental analyses are required for accuracy in proper identification and definitive information about their source...
January 1, 2017: Applied Spectroscopy
https://www.readbyqxmd.com/read/29237786/commentary-waltzing-around-sacred-cows-on-the-way-to-the-future
#12
Stephen M Brecher
Our mostly manual, agar based clinical microbiology laboratory is slowly but steadily being re-defined by automation and innovation. Ironically, the oldest test, the Gram stain, is still manually read and interpreted by trained personnel. In this proof of concept study Smith et al. (https://doi.org/10.1128/JCM.01521-17) have used computer imaging with a deep convolutional neural network to examine and interpret Gram-stained slides from positive blood culture bottles. In light of the shortage of medical technologists/microbiologists and the need for results of positive blood culture bottles 24/7, this paper paves the way for the next innovations for the clinical microbiology laboratory of the future...
December 13, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/29237146/digital-breast-tomosynthesis-with-synthesized-two-dimensional-images-versus-full-field-digital-mammography-for-population-screening-outcomes-from-the-verona-screening-program
#13
Francesca Caumo, Manuel Zorzi, Silvia Brunelli, Giovanna Romanucci, Rossella Rella, Loredana Cugola, Paola Bricolo, Chiara Fedato, Stefania Montemezzi, Nehmat Houssami
Purpose To examine the outcomes of a breast cancer screening program based on digital breast tomosynthesis (DBT) plus synthesized two-dimensional (2D) mammography compared with those after full-field digital mammography (FFDM). Materials and Methods This prospective study included 16 666 asymptomatic women aged 50-69 years who were recruited in April 2015 through March 2016 for DBT plus synthetic 2D screening in the Verona screening program. A comparison cohort of women screened with FFDM (n = 14 423) in the previous year was included...
December 13, 2017: Radiology
https://www.readbyqxmd.com/read/29236181/ultrasound-based-logistic-regression-model-lr2-versus-magnetic-resonance-imaging-for-discriminating-between-benign-and-malignant-adnexal-masses-a-prospective-study
#14
Kanane Shimada, Koji Matsumoto, Takashi Mimura, Tetsuya Ishikawa, Jiro Munechika, Yoshimitsu Ohgiya, Miki Kushima, Yusuke Hirose, Yuka Asami, Chiaki Iitsuka, Shingo Miyamoto, Mamiko Onuki, Hajime Tsunoda, Ryu Matsuoka, Kiyotake Ichizuka, Akihiko Sekizawa
BACKGROUND: The diagnostic performances of the International Ovarian Tumor Analysis (IOTA) ultrasound-based logistic regression model (LR2) and magnetic resonance imaging (MRI) in discriminating between benign and malignant adnexal masses have not been directly compared in a single study. METHODS: Using the IOTA LR2 model and subjective interpretation of MRI findings by experienced radiologists, 265 consecutive patients with adnexal masses were preoperatively evaluated in two hospitals between February 2014 and December 2015...
December 13, 2017: International Journal of Clinical Oncology
https://www.readbyqxmd.com/read/29235990/the-fokker-planck-equation-for-coupled-brown-neel-rotation
#15
Juergen Weizenecker
Calculating the dynamic properties of magnetization of single-domain particles is of great importance for the tomographic imaging modality known as magnetic particle imaging (MPI). Although the assumption of instantaneous thermodynamic equilibrium (Langevin function) after application of time-dependent magnetic fields is sufficient for understanding the fundamental behavior, it is essential to consider the finite response times of magnetic particles for optimizing or analyzing various aspects, e.g., interpreting spectra, optimizing MPI sequences, developing new contrasts, and evaluating simplified models...
December 13, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/29234867/photoconversion-of-dapi-and-hoechst-dyes-to-green-and-red-emitting-forms-after-exposure-to-uv-excitation
#16
Travis J Karg, Kent G Golic
The fluorescent dye 4'-6-Diamidino-2-phenylindole (DAPI) is frequently used in fluorescence microscopy as a chromosome and nuclear stain because of its high specificity for DNA. Normally, DAPI bound to DNA is maximally excited by ultraviolet (UV) light at 358 nm, and emits maximally in the blue range, at 461 nm. Hoechst dyes 33258 and 33342 have similar excitation and emission spectra and are also used to stain nuclei and chromosomes. It has been reported that exposure to UV can convert DAPI and Hoechst dyes to forms that are excited by blue light and emit green fluorescence, potentially confusing the interpretation of experiments that use more than one fluorochrome...
December 12, 2017: Chromosoma
https://www.readbyqxmd.com/read/29234806/diagnostic-assessment-of-deep-learning-algorithms-for-detection-of-lymph-node-metastases-in-women-with-breast-cancer
#17
Babak Ehteshami Bejnordi, Mitko Veta, Paul Johannes van Diest, Bram van Ginneken, Nico Karssemeijer, Geert Litjens, Jeroen A W M van der Laak, Meyke Hermsen, Quirine F Manson, Maschenka Balkenhol, Oscar Geessink, Nikolaos Stathonikos, Marcory Crf van Dijk, Peter Bult, Francisco Beca, Andrew H Beck, Dayong Wang, Aditya Khosla, Rishab Gargeya, Humayun Irshad, Aoxiao Zhong, Qi Dou, Quanzheng Li, Hao Chen, Huang-Jing Lin, Pheng-Ann Heng, Christian Haß, Elia Bruni, Quincy Wong, Ugur Halici, Mustafa Ümit Öner, Rengul Cetin-Atalay, Matt Berseth, Vitali Khvatkov, Alexei Vylegzhanin, Oren Kraus, Muhammad Shaban, Nasir Rajpoot, Ruqayya Awan, Korsuk Sirinukunwattana, Talha Qaiser, Yee-Wah Tsang, David Tellez, Jonas Annuscheit, Peter Hufnagl, Mira Valkonen, Kimmo Kartasalo, Leena Latonen, Pekka Ruusuvuori, Kaisa Liimatainen, Shadi Albarqouni, Bharti Mungal, Ami George, Stefanie Demirci, Nassir Navab, Seiryo Watanabe, Shigeto Seno, Yoichi Takenaka, Hideo Matsuda, Hady Ahmady Phoulady, Vassili Kovalev, Alexander Kalinovsky, Vitali Liauchuk, Gloria Bueno, M Milagro Fernandez-Carrobles, Ismael Serrano, Oscar Deniz, Daniel Racoceanu, Rui Venâncio
Importance: Application of deep learning algorithms to whole-slide pathology images can potentially improve diagnostic accuracy and efficiency. Objective: Assess the performance of automated deep learning algorithms at detecting metastases in hematoxylin and eosin-stained tissue sections of lymph nodes of women with breast cancer and compare it with pathologists' diagnoses in a diagnostic setting. Design, Setting, and Participants: Researcher challenge competition (CAMELYON16) to develop automated solutions for detecting lymph node metastases (November 2015-November 2016)...
December 12, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/29234688/superior-semicircular-canal-dehiscence-a-new-perspective
#18
Dinesh Sood, Lokesh Rana, Raman Chauhan, Roshni Shukla, Khanak Nandolia
Objective: To determine the use of multi-detector computed tomography (MDCT) in the diagnostic interpretation of superior semicircular canal dehiscence (SSCD) or thinning and its association with ear pathologies and to find whether it is an acquired condition and its association with increase in age. Materials and methods: study was performed in a tertiary care institute present in a village, following approval of the institutional ethical committee. Retrospective review of temporal bone CT examinations performed between September 2016 and March 2017 was done...
2017: European Journal of Radiology Open
https://www.readbyqxmd.com/read/29234150/the-shallow-structure-of-solfatara-volcano-italy-revealed-by-dense-wide-aperture-seismic-profiling
#19
Pier Paolo G Bruno, Stefano Maraio, Gaetano Festa
Two active-source, high-resolution seismic profiles were acquired in the Solfatara tuff cone in May and November 2014, with dense, wide-aperture arrays. Common Receiver Surface processing was crucial in improving signal-to-noise ratio and reflector continuity. These surveys provide, for the first time, high-resolution seismic images of the Solfatara crater, depicting a ~400 m deep asymmetrical crater filled by volcanoclastic sediments and rocks and carved within an overall non-reflective pre-eruptive basement showing features consistent with the emplacement of shallow intrusive bodies...
December 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29233685/contrast-enhanced-ultrasound-in-mixed-hepatocellular-cholangiocarcinoma-case-series-and-review-of-the-literature
#20
Yi Dong, Andreas Teufel, Jörg Trojan, Annalisa Berzigotti, Xin Wu Cui, Christoph F Dietrich
BACKGROUND: Mixed hepatocellular cholangiocarcinoma is a rare form of primary liver cancer. AIMS: The aim of this study is to report the results of the use of contrast enhanced ultrasound in a series of patients with confirmed mixed hepatocellular cholangiocarcinoma and to provide an updated literature review. METHODS: Between January 2012 and October 2016, 25 Asian patients with confirmed mixed hepatocellular cholangiocarcinoma were included in this bicentric retrospective analysis...
November 24, 2017: Digestive and Liver Disease
keyword
keyword
60151
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"