keyword
MENU ▼
Read by QxMD icon Read
search

Landmark article

keyword
https://www.readbyqxmd.com/read/28543027/the-vascularized-groin-lymph-node-flap-vgln-anatomical-study-and-flap-planning-using-multi-detector-ct-scanner-the-golden-triangle-for-flap-harvesting
#1
Assaf A Zeltzer, Alexander Anzarut, Delphine Braeckmans, Katrin Seidenstuecker, Benoit Hendrickx, Eddy Van Hedent, Moustapha Hamdi
INTRODUCTION: A growing number of surgeons perform lymph node transfers for the treatment of lymphedema. When harvesting a vascularized lymph node groin flap (VGLNF) one of the major concerns is the potential risk of iatrogenic lymphedema of the donor-site. This article helps understanding of the lymph node distribution of the groin in order to minimize this risk. MATERIALS AND METHODS: Fifty consecutive patients undergoing abdominal mapping by multi-detector CT scanner were included and 100 groins analyzed...
May 25, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28534311/scale-space-for-empty-catheter-segmentation-in-pci-fluoroscopic-images
#2
Ketan Bacchuwar, Jean Cousty, Régis Vaillant, Laurent Najman
PURPOSE: In this article, we present a method for empty guiding catheter segmentation in fluoroscopic X-ray images. The guiding catheter, being a commonly visible landmark, its segmentation is an important and a difficult brick for Percutaneous Coronary Intervention (PCI) procedure modeling. METHODS: In number of clinical situations, the catheter is empty and appears as a low contrasted structure with two parallel and partially disconnected edges. To segment it, we work on the level-set scale-space of image, the min tree, to extract curve blobs...
May 22, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28530119/update-in-sleep-disordered-breathing-2016
#3
Najib T Ayas, Luciano F Drager, Mary J Morrell, Vsevolod Y Polotsky
The field of sleep disordered breathing has continued to evolve with many important articles published in the last year. In this review, we have summarized some of the key articles relevant to sleep disordered breathing that have been published in the Journal and selected articles published elsewhere in the last year; these have included landmark randomized trials concerning sleep apnea treatment in the prevention of adverse cardiac outcomes, basic science and animal studies, genetic studies, and analyses of epidemiologic cohorts...
May 21, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28514499/surface-anatomy-of-major-anatomical-landmarks-of-the-neck-in-an-adult-population-a-ct-evaluation-of-vertebral-level
#4
Masroor Badshah, Roger Soames, Muhammad Ibrahim, Muhammad Jaffar Khan, Adnan Khan
Introduction To compare the projectional surface anatomy of healthy individuals in an adult population with those with a thyroid mass, using computed tomography (CT). Methods Sixteen slice CT images of 101 individuals were analyzed using a 32-bit Radiant DICOM viewer to establish the relationships among major anatomical landmarks in the neck and their vertebral levels. The structures investigated included: hard palate (HP), hyoid bone (HB) including body and lesser horns, soft palate (SP), thyroid gland (TG) (both superior and inferior poles), thyroid gland anteroposterior (APD) and superoinferior (SID) diameters, thyroid isthmus (TI) superoinferior dimension, epiglottis, vertebral arteries (right and left), and both right and left parotid glands (superior and inferior extents)...
May 17, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28514496/a-reappraisal-of-children-s-thoracic-surface-anatomy
#5
Nicholas Fischer, Jonty Morreau, Ramanen Sugunesegran, Kiarash Taghavi, Ali Mirjalili
Accurate knowledge of surface anatomy is fundamental to safe clinical practice. A paucity of evidence in the literature regarding thoracic surface anatomy in children was identified. The associations between surface landmarks and internal structures were meticulously analyzed by reviewing high quality computed tomography (CT) images of 77 children aged from four days to 12 years. The results confirmed that the sternal angle is an accurate surface landmark for the azygos-superior vena cava junction in a plane through to the level of upper T4 from birth to age four, and to lower T4 in older children...
May 17, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28514490/brain-ultrasound-rehearsal-before-surgery-a-pilot-cadaver-study
#6
Carlo Giussani, Matteo Riva, Valentin Djonov, Simone Beretta, Francesco Prada, Erik Sganzerla
Introduction It has been shown that brain ultrasonography (US) is an efficient tool for improving three-dimensional (3D) spatial orientation during neurosurgical interventions. However, it necessitates specific training as it is highly operator-dependent. To date, neurosurgeons have relied solely on intraoperative practice to improve their mastery of brain US; this has obvious limitations. Herein, we consider whether a study of brain US on human cadavers could enable a training platform for neurosurgeons and residents to be developed...
May 17, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28509331/anatomic-landmarks-in-lacrimal-surgery-from-an-ophthalmologist-s-point-of-view
#7
REVIEW
Jens Heichel, Hans-Gert Struck, Anja Viestenz, Thomas Hammer, Arne Viestenz, Miltiadis Fiorentzis
Epiphora is a common clinical symptom of nasolacrimal duct obstruction. However, it is present in several pathologies and can lead to decreased quality of life for patients. A careful clinical examination including a detailed patient's history and diagnostic tests such as the fluorescein dye disappearance test and diagnostic syringing of the lacrimal duct are essential. Depending on the time of presentation (congenital, primary or secondary acquired), grade (subtotal or total) and location of the stenosis, different surgical approaches can be considered...
May 16, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28508263/new-insights-into-the-anatomy-of-the-midface-musculature-and-its-implications-on-the-nasolabial-fold
#8
Chelsea C Snider, Ashley N Amalfi, Lauren E Hutchinson, Nicole Z Sommer
BACKGROUND: The prominent nasolabial fold is a distinct feature of the aging midface. As minimally invasive procedures have become mainstream, chemodenervation is a preferred method for treating dynamic facial rhytids. We therefore sought to identify relevant nasolabial fold and midfacial muscular anatomy to determine the ideal location of neuromodulation to improve the aesthetics of the midface and nasolabial fold without altering the upper lip and smile. METHODS: Twelve hemifacial cadaveric dissections were performed to identify midface muscle origin, insertion, width, vector of pull, and neighboring structures...
May 15, 2017: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/28492286/has-the-sprint-trial-introduced-a-new-blood-pressure-goal-in-hypertension
#9
REVIEW
Gema Ruiz-Hurtado, José R Banegas, Pantelis A Sarafidis, Massimo Volpe, Bryan Williams, Luis M Ruilope
SPRINT is the first randomized, controlled trial showing that a systolic blood-pressure goal of <120 mmHg can be attained with cardiovascular benefits in a select group of patients with hypertension and an elevated cardiovascular risk with different origins. Although the patient population with characteristics like those in SPRINT makes up only 20-30% of the total hypertensive population, SPRINT is a landmark study that highlights the need to consider lower blood- pressure goals in the treatment of hypertension...
May 11, 2017: Nature Reviews. Cardiology
https://www.readbyqxmd.com/read/28486682/do-different-maxillary-expansion-appliances-influence-the-outcomes-of-the-treatment
#10
Muteb Algharbi, Farhan Bazargani, Lillemor Dimberg
Background and objectives: There is no consensus in the literature regarding which rapid maxillary expansion (RME) design or activation rate benefits the patients the most. Therefore, the primary aim of this systematic review was to see whether there is a difference in the skeletal and dentoalveolar effects of different RME appliances in children and growing adolescents. The secondary aim was to see whether these effects are different when using different activation protocols for these appliances...
May 9, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28483811/expanding-medicaid-expanding-the-electorate-the-affordable-care-act-s-short-term-impact-on-political-participation
#11
Jake Haselswerdt
The Affordable Care Act is a landmark piece of social legislation with the potential to reshape health care in the United States. Its potential to reshape politics is also considerable, but existing scholarship suggests conflicting expectations about the law's policy feedbacks, especially given uneven state-level implementation. In this article I focus on the policy feedbacks of the law's Medicaid expansion on political participation, using district-level elections data for 2012 and 2014 US House races and cross-sectional survey data from 2014...
May 8, 2017: Journal of Health Politics, Policy and Law
https://www.readbyqxmd.com/read/28477409/alma-ata-to-berlin-diabetes-prevention-and-treatment-to-achieve-healthy-living
#12
S Kalra, T Lauritzen, T Sharmanov, Z Akanov, F Al Awadi, A K Das, C Espinosa López, G Medea, P Oh, Y Samoilova, M Shestakova, P Netto, X Cos, M Farghaly, X Du
The 1978 Declaration of Alma-Ata [1], issued at the International Conference on Primary Health Care*, held at Alma-Ata, Kazakhstan (former Soviet Union), is a landmark in public health. By stating that health is a fundamental human right, the declaration promoted interest and action in the field of public health, specifically primary health care. While it highlighted maternal child health and infectious disease control, it also clearly addressed chronic illness care, the availability of appropriate pharmaceuticals, and the need for preventive, curative and rehabilitative services...
May 6, 2017: Diabetic Medicine: a Journal of the British Diabetic Association
https://www.readbyqxmd.com/read/28477378/evaluating-the-accuracy-of-4d-ct-ventilation-imaging-first-comparison-with-technegas-spect-ventilation
#13
Fiona Hegi-Johnson, Paul Keall, Jeff Barber, Chuong Bui, John Kipritidis
INTRODUCTION: Computed tomography ventilation imaging (CTVI) is a highly accessible functional lung imaging modality that can unlock the potential for functional avoidance in lung cancer radiation therapy. Previous attempts to validate CTVI against clinical ventilation single-photon emission computed tomography (V-SPECT) have been hindered by radioaerosol clumping artifacts. This work builds on those studies by performing the first comparison of CTVI with (99m) Tc-carbon ('Technegas'), a clinical V-SPECT modality featuring smaller radioaerosol particles with less clumping...
May 5, 2017: Medical Physics
https://www.readbyqxmd.com/read/28477346/breast-mri-segmentation-for-density-estimation-do-different-methods-give-the-same-results-and-how-much-do-differences-matter
#14
Simon J Doran, John H Hipwell, Rachel Denholm, Björn Eiben, Marta Busana, David J Hawkes, Martin O Leach, Isabel Dos Santos Silva
PURPOSE: To compare two methods of automatic breast segmentation with each other and with manual segmentation in a large subject cohort. To discuss the factors involved in selecting the most appropriate algorithm for automatic segmentation and, in particular, to investigate the appropriateness of overlap measures (e.g., Dice and Jaccard coefficients) as the primary determinant in algorithm selection. METHODS: Two methods of breast segmentation were applied to the task of calculating MRI breast density in 200 subjects drawn from the Avon Longitudinal Study of Parents and Children, a large cohort study with an MRI component...
May 6, 2017: Medical Physics
https://www.readbyqxmd.com/read/28477340/a-neural-network-approach-for-fast-automated-quantification-of-dir-performance
#15
John Neylon, Yugang Min, Daniel A Low, Anand Santhanam
PURPOSE: A critical step in adaptive radiotherapy (ART) workflow is deformably registering the simulation CT with the daily or weekly volumetric imaging. Quantifying the deformable image registration accuracy under these circumstances is a complex task due to the lack of known ground-truth landmark correspondences between the source data and target data. Generating landmarks manually (using experts) is time-consuming, and limited by image quality and observer variability. While image similarity metrics (ISM) may be used as an alternative approach to quantify the registration error, there is a need to characterize the ISM values by developing a non-linear cost function and translate them to physical distance measures in order to enable fast, quantitative comparison of registration performance...
May 5, 2017: Medical Physics
https://www.readbyqxmd.com/read/28476361/editorial-commentary-the-anterolateral-ligament-what-we-know-what-we-do-not-know-and-how-this-article-helps
#16
EDITORIAL
Bruce A Levy, Rohith Mohan
A recent study on knee anterolateral ligament anatomy is a significant contribution to the literature because it provides precise isometric radiographic landmarks for both femoral and tibial tunnel placement, which are paramount to successful anterolateral ligament reconstruction.
May 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28475383/fractional-flow-reserve-in-2017-current-data-and-everyday-practice
#17
J J Coughlan, Colin MacDonnell, Samer Arnous, Thomas J Kiernan
Fractional Flow Reserve (FFR) is an objective physiological index utilized in coronary angiography. It expresses the blood flow in the presence of a coronary artery stenosis as a fraction of the normal blood flow and gives information regarding the functional significance of the lesion. FFR guided percutaneous coronary intervention (PCI) has been shown to be superior to angiography guided PCI in several trials and registries. In addition, it appears that the use of FFR may also be preferable from an economic perspective...
May 5, 2017: Expert Review of Cardiovascular Therapy
https://www.readbyqxmd.com/read/28475250/iv-developments-in-the-analysis-of-longitudinal-data
#18
Kevin J Grimm, Pega Davoudzadeh, Nilam Ram
Longitudinal data analytic techniques include a complex array of statistical techniques from repeated-measures analysis of variance, mixed-effects models, and time-series analysis, to longitudinal latent variable models (e.g., growth models, dynamic factor models) and mixture models (longitudinal latent profile analysis, growth mixture models). In this article, we focus our attention on the rationales of longitudinal research laid out by Baltes and Nesselroade (1979) and discuss the advancements in the analysis of longitudinal data since their landmark paper...
June 2017: Monographs of the Society for Research in Child Development
https://www.readbyqxmd.com/read/28475181/a-systematic-review-to-assess-the-treat-and-extend-dosing-regimen-for-neovascular-age-related-macular-degeneration-using-ranibizumab
#19
REVIEW
S R Rufai, H Almuhtaseb, R M Paul, B L Stuart, T Kendrick, H Lee, A J Lotery
Age-related macular degeneration (AMD) is the leading cause of irreversible blindness in the developed world. Monthly or as-needed (PRN) dosing strategies of intravitreal ranibizumab have been established as efficacious treatment options for neovascular AMD. More recently, the 'treat-and-extend' dosing regimen (TREX) is being adopted in clinical practice as it represents a patient-centric and economical option, reducing treatment burden by extending injection intervals when possible. However, the efficacy of TREX using ranibizumab monotherapy remains to be defined...
May 5, 2017: Eye
https://www.readbyqxmd.com/read/28473079/acr-appropriateness-criteria-%C3%A2-pretreatment%C3%A2-staging-of-colorectal-cancer
#20
Kathryn J Fowler, Harmeet Kaur, Brooks D Cash, Barry W Feig, Kenneth L Gage, Evelyn M Garcia, Amy K Hara, Joseph M Herman, David H Kim, Drew L Lambert, Angela D Levy, Christine M Peterson, Christopher D Scheirey, William Small, Martin P Smith, Tasneem Lalani, Laura R Carucci
Colorectal cancers are common tumors in the United States and appropriate imaging is essential to direct appropriate care. Staging and treatment differs between tumors arising in the colon versus the rectum. Local staging for colon cancer is less integral to directing therapy given radical resection is often standard. Surgical options for rectal carcinoma are more varied and rely on accurate assessment of the sphincter, circumferential resection margins, and peritoneal reflection. These important anatomic landmarks are best appreciated on high-resolution imaging with transrectal ultrasound or MRI...
May 2017: Journal of the American College of Radiology: JACR
keyword
keyword
10123
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"