keyword
MENU ▼
Read by QxMD icon Read
search

Breast anatomy

keyword
https://www.readbyqxmd.com/read/28165635/variance-of-the-pectoralis-major-in-relation-to-the-inframammary-fold-and-the-pectoralis-minor-and-its-application-to-breast-surgery
#1
Woo Yeol Baek, Il Hwan Byun, Young Seok Kim, Bok Ki Jung, In Sik Yun, Tai Suk Roh
INTRODUCTION: Understanding the anatomy of the muscles and other structures of the chest is of great importance in breast surgery. We have conducted the first analysis of the overall variations and relationships among the pectoralis major (PM), inframammary fold (IMF), and pectoralis minor (Pm). MATERIALS AND METHODS: We studied 30 patients and 10 cadavers, leading to a total of 50 breasts. Preoperatively, the breast width was measured, and the costal origin of the lowest IMF point was marked...
February 6, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28112399/estimating-organ-doses-from-tube-current-modulated-ct-examinations-using-a-generalized-linear-model
#2
Maryam Bostani, Kyle McMillan, Peiyun Lu, Grace Hyun J Kim, Dianna Cody, Gary Arbique, S Bruce Greenberg, John J DeMarco, Chris H Cagnon, Michael F McNitt-Gray
PURPOSE: Currently available Computed Tomography dose metrics are mostly based on fixed tube current Monte Carlo (MC) simulations and/or physical measurements such as the size specific dose estimate (SSDE). In addition to not being able to account for Tube Current Modulation (TCM), these dose metrics do not represent actual patient dose. The purpose of this study was to generate and evaluate a dose estimation model based on the Generalized Linear Model (GLM) which extends the ability to estimate organ dose from tube current modulated examinations by incorporating regional descriptors of patient size, scanner output and other scan-specific variables as needed...
January 23, 2017: Medical Physics
https://www.readbyqxmd.com/read/28057965/ultrasound-findings-of-the-physiological-changes-and-most-common-breast-diseases-during-pregnancy-and-lactation
#3
REVIEW
Antônio Arildo Reginaldo de Holanda, Ana Katherine da Silveira Gonçalves, Robinson Dias de Medeiros, António Manuel Gouveia de Oliveira, Técia Maria de Oliveira Maranhão
Because of the physiological changes that occur during pregnancy and lactation, diagnostic ultrasound of the breast during these periods is a challenge for physicians. Therefore, a comprehensive understanding of imaging, anatomy, and physiology of the breast is important to effectively diagnosing diseases that can arise in women who are pregnancy or lactating. The aim of this article was to review the physiological changes that occur in the breasts during pregnancy and lactation, as well as to describe the main features of the breast diseases that occur most frequently during these periods...
November 2016: Radiologia Brasileira
https://www.readbyqxmd.com/read/28048813/mo-fg-209-04-dbt-applications-of-feature-adaptive-visual-search-model-oberver
#4
M Das
: This symposium will review recent advances in the simulation methods for evaluation of novel breast imaging systems - the subject of AAPM Task Group TG234. Our focus will be on the various approaches to development and validation of software anthropomorphic phantoms and their use in the statistical assessment of novel imaging systems using such phantoms along with computational models for the x-ray image formation process. Due to the dynamic development and complex design of modern medical imaging systems, the simulation of anatomical structures, image acquisition modalities, and the image perception and analysis offers substantial benefits of reduced cost, duration, and radiation exposure, as well as the known ground-truth and wide variability in simulated anatomies...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048735/mo-fg-209-00-recent-advances-in-virtual-tools-for-validation-of-3d-4d-breast-imaging-systems-tg234
#5
Predrag Bakic, Kyle Myers
: This symposium will review recent advances in the simulation methods for evaluation of novel breast imaging systems - the subject of AAPM Task Group TG234. Our focus will be on the various approaches to development and validation of software anthropomorphic phantoms and their use in the statistical assessment of novel imaging systems using such phantoms along with computational models for the x-ray image formation process. Due to the dynamic development and complex design of modern medical imaging systems, the simulation of anatomical structures, image acquisition modalities, and the image perception and analysis offers substantial benefits of reduced cost, duration, and radiation exposure, as well as the known ground-truth and wide variability in simulated anatomies...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048684/su-f-t-115-uncertainty-in-the-esophagus-dose-in-retrospective-epidemiological-study-of-breast-cancer-radiotherapy-patients
#6
E Mosher, S Kim, C Lee, C Pelletier, J Jung, E Jones, C Lee
PURPOSE: Epidemiological studies of second cancer risks in breast cancer radiotherapy patients often use generic patient anatomy to reconstruct normal tissue doses when CT images of patients are not available. To evaluate the uncertainty involved in the dosimetry approach, we evaluated the esophagus dose in five sample patients by simulating breast cancer treatments. METHODS: We obtained the diagnostic CT images of five anonymized adult female patients in different Body Mass Index (BMI) categories (16- 36kg/m2) from National Institutes of Health Clinical Center...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048553/su-c-brb-03-cross-institutional-validation-of-an-ultrafast-automatic-planning-platform-for-breast-irradiation
#7
T Li, Y Sheng, V Lockamy, P Anne, N Simone, Q J Wu, Y Yu
PURPOSE: Recently an ultrafast automatic planning system for breast irradiation using tangential beams was developed by modeling relationships between patient anatomy and achieved dose distribution. This study evaluates the performance of this system when applied to a different patient population and dose calculation algorithm. METHODS: The system and its anatomy-to-dose models was developed at institution A based on 20 cases, which were planned using manual fluence painting technique and calculated WITH heterogeneity correction...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048320/su-g-iep2-08-investigation-on-signal-detectability-in-volumetric-cone-beam-ct-images-with-anatomical-background
#8
M Han, J Baek
PURPOSE: To investigate the slice direction dependent detectability in cone beam CT images with anatomical background. METHODS: We generated 3D anatomical background images using breast anatomy model. To generate 3D breast anatomy, we filtered 3D Gaussian noise with a square root of 1/f(3) , and then assigned the attenuation coefficient of glandular (0.8cm(-1) ) and adipose (0.46 cm(-1) ) tissues based on voxel values. Projections were acquired by forward projection, and quantum noise was added to the projection data...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048161/mo-fg-209-05-towards-a-feature-based-anthropomorphic-model-observer
#9
A Avanaki
: This symposium will review recent advances in the simulation methods for evaluation of novel breast imaging systems - the subject of AAPM Task Group TG234. Our focus will be on the various approaches to development and validation of software anthropomorphic phantoms and their use in the statistical assessment of novel imaging systems using such phantoms along with computational models for the x-ray image formation process. Due to the dynamic development and complex design of modern medical imaging systems, the simulation of anatomical structures, image acquisition modalities, and the image perception and analysis offers substantial benefits of reduced cost, duration, and radiation exposure, as well as the known ground-truth and wide variability in simulated anatomies...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048077/mo-fg-209-01-introduction
#10
K Myers
: This symposium will review recent advances in the simulation methods for evaluation of novel breast imaging systems - the subject of AAPM Task Group TG234. Our focus will be on the various approaches to development and validation of software anthropomorphic phantoms and their use in the statistical assessment of novel imaging systems using such phantoms along with computational models for the x-ray image formation process. Due to the dynamic development and complex design of modern medical imaging systems, the simulation of anatomical structures, image acquisition modalities, and the image perception and analysis offers substantial benefits of reduced cost, duration, and radiation exposure, as well as the known ground-truth and wide variability in simulated anatomies...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048034/tu-ab-209-03-identifying-useful-features-for-visual-search-model-observers
#11
H Gifford
Digital breast tomosynthesis (DBT), a limited-angle tomographic technique by its nature has multiple optimal system configurations, which can lead to many potential changes to the existing and new DBT systems entering the US market. With the availability of computational tools such as for modeling imaging physics, it is becoming increasingly important to conduct virtual trials for a rigorous, preclinical and task-based assessment of DBT. For such virtual assessment to be successful, it is critical to: (1) develop model-observer approaches that can account for patient data statistics stemming from realistic or real breast backgrounds as well as lesion characteristics, thereby performing given tasks effectively and (2) validate the model-observer approaches and their performance trends/levels with physical measurements from a prototype or real DBT system and a physical phantom ensemble...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047981/tu-ab-209-00-model-observer-design-and-its-validation-for-task-based-evaluation-of-digital-breast-tomosynthesis
#12
Stephen Glick
Digital breast tomosynthesis (DBT), a limited-angle tomographic technique by its nature has multiple optimal system configurations, which can lead to many potential changes to the existing and new DBT systems entering the US market. With the availability of computational tools such as for modeling imaging physics, it is becoming increasingly important to conduct virtual trials for a rigorous, preclinical and task-based assessment of DBT. For such virtual assessment to be successful, it is critical to: (1) develop model-observer approaches that can account for patient data statistics stemming from realistic or real breast backgrounds as well as lesion characteristics, thereby performing given tasks effectively and (2) validate the model-observer approaches and their performance trends/levels with physical measurements from a prototype or real DBT system and a physical phantom ensemble...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047419/mo-fg-209-02-development-of-a-virtual-breast-phantom-from-a-multi-modality-perspective
#13
C Graff
: This symposium will review recent advances in the simulation methods for evaluation of novel breast imaging systems - the subject of AAPM Task Group TG234. Our focus will be on the various approaches to development and validation of software anthropomorphic phantoms and their use in the statistical assessment of novel imaging systems using such phantoms along with computational models for the x-ray image formation process. Due to the dynamic development and complex design of modern medical imaging systems, the simulation of anatomical structures, image acquisition modalities, and the image perception and analysis offers substantial benefits of reduced cost, duration, and radiation exposure, as well as the known ground-truth and wide variability in simulated anatomies...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047368/tu-ab-209-04-practical-examples-of-model-observer-applications-in-digital-breast-tomosynthesis
#14
H Bosmans
Digital breast tomosynthesis (DBT), a limited-angle tomographic technique by its nature has multiple optimal system configurations, which can lead to many potential changes to the existing and new DBT systems entering the US market. With the availability of computational tools such as for modeling imaging physics, it is becoming increasingly important to conduct virtual trials for a rigorous, preclinical and task-based assessment of DBT. For such virtual assessment to be successful, it is critical to: (1) develop model-observer approaches that can account for patient data statistics stemming from realistic or real breast backgrounds as well as lesion characteristics, thereby performing given tasks effectively and (2) validate the model-observer approaches and their performance trends/levels with physical measurements from a prototype or real DBT system and a physical phantom ensemble...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047311/tu-ab-209-01-virtual-and-physical-breast-phantoms-that-mimic-patients
#15
J Lo
Digital breast tomosynthesis (DBT), a limited-angle tomographic technique by its nature has multiple optimal system configurations, which can lead to many potential changes to the existing and new DBT systems entering the US market. With the availability of computational tools such as for modeling imaging physics, it is becoming increasingly important to conduct virtual trials for a rigorous, preclinical and task-based assessment of DBT. For such virtual assessment to be successful, it is critical to: (1) develop model-observer approaches that can account for patient data statistics stemming from realistic or real breast backgrounds as well as lesion characteristics, thereby performing given tasks effectively and (2) validate the model-observer approaches and their performance trends/levels with physical measurements from a prototype or real DBT system and a physical phantom ensemble...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046754/mo-fg-209-03-simulation-of-breast-anatomy-at-the-cellular-scale
#16
P Bakic
: This symposium will review recent advances in the simulation methods for evaluation of novel breast imaging systems - the subject of AAPM Task Group TG234. Our focus will be on the various approaches to development and validation of software anthropomorphic phantoms and their use in the statistical assessment of novel imaging systems using such phantoms along with computational models for the x-ray image formation process. Due to the dynamic development and complex design of modern medical imaging systems, the simulation of anatomical structures, image acquisition modalities, and the image perception and analysis offers substantial benefits of reduced cost, duration, and radiation exposure, as well as the known ground-truth and wide variability in simulated anatomies...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046640/tu-ab-209-02-designing-model-observers-for-signal-known-exactly-tasks-in-digital-breast-tomosynthesis
#17
S Park
Digital breast tomosynthesis (DBT), a limited-angle tomographic technique by its nature has multiple optimal system configurations, which can lead to many potential changes to the existing and new DBT systems entering the US market. With the availability of computational tools such as for modeling imaging physics, it is becoming increasingly important to conduct virtual trials for a rigorous, preclinical and task-based assessment of DBT. For such virtual assessment to be successful, it is critical to: (1) develop model-observer approaches that can account for patient data statistics stemming from realistic or real breast backgrounds as well as lesion characteristics, thereby performing given tasks effectively and (2) validate the model-observer approaches and their performance trends/levels with physical measurements from a prototype or real DBT system and a physical phantom ensemble...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046518/tu-h-campus-iep2-04-efficient-binary-tree-description-of-high-resolution-breast-models-for-in-silico-imaging
#18
A Badal, C Graff, R Zeng, F Samuelson, A Badano
PURPOSE: We introduce a new geometric model for Monte Carlo (MC) simulation of breast tomosynthesis and mammography images with very high resolution digital breast phantoms voxelized at resolutions down to 50 microns or less. This fine sampling of the anatomy is required to reproduce the spiculated lesions and microcalcifications visible in clinical mammograms with pixel sizes under 100 microns. Phantoms voxelized at this resolution require such a large amount of computer memory that it might not be possible to execute the simulation in regular computers or in Graphics Processing Units (GPU), limiting the realism that can be achieved in virtual clinical trials...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046484/we-ab-209-05-development-of-an-ultra-fast-high-quality-whole-breast-radiotherapy-treatment-planning-system
#19
Y Sheng, T Li, S Yoo, F Yin, R Blitzblau, J Horton, M Palta, C Hahn, Y Ge, Q Wu
PURPOSE: To enable near-real-time (<20sec) and interactive planning without compromising quality for whole breast RT treatment planning using tangential fields. METHODS: Whole breast RT plans from 20 patients treated with single energy (SE, 6MV, 10 patients) or mixed energy (ME, 6/15MV, 10 patients) were randomly selected for model training. Additional 20 cases were used as validation cohort. The planning process for a new case consists of three fully automated steps:1...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28042819/retroareolar-carcinomas-in-breast-ultrasound-pearls-and-pitfalls
#20
REVIEW
Romuald Ferré, Martine Paré, Lisa Smith, Mélanie Thériault, Ann Aldis, Ellen Kao, Benoit Mesurolle
Breast Ultrasound (US) is an important tool for both screening and diagnostic examinations. Although breast US has benefitted from significant recent technical improvements, its use for the retroareolar region is known to be more challenging than for other locations. The retroareolar location was defined by Giess et al. in 1998 as the region where any lesion is situated at less than two cm from the nipple and/or involves the nipple-areolar complex on mammogram. Understanding of the complex anatomy and physiology of the nipple-areolar region is important to avoid misinterpretation and misdiagnosis...
December 30, 2016: Cancers
keyword
keyword
24524
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"