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Breast volume measurement

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https://www.readbyqxmd.com/read/28544159/simultaneous-measurement-of-t1-b1-and-pharmacokinetic-model-parameters-using-active-contrast-encoding-ace-mri
#1
Jin Zhang, Kerryanne Winters, Olivier Reynaud, Sungheon Gene Kim
The aim of this study was to assess the feasibility of combining dynamic contrast enhanced-magnetic resonance imaging (DCE-MRI) with the measurement of the radiofrequency (RF) transmit field B1 and pre-contrast longitudinal relaxation time T10 . A novel approach has been proposed to simultaneously estimate B1 and T10 from a modified DCE-MRI scan that actively encodes the washout phase of the curve with different amounts of T1 and B1 weighting using multiple flip angles and repetition times, hence referred to as active contrast encoding (ACE)-MRI...
May 22, 2017: NMR in Biomedicine
https://www.readbyqxmd.com/read/28538023/magnetic-resonance-imaging-based-assessment-of-breast-cancer-related-lymphoedema-tissue-composition
#2
Marco Borri, Kristiana D Gordon, Julie C Hughes, Erica D Scurr, Dow-Mu Koh, Martin O Leach, Peter S Mortimer, Maria A Schmidt
OBJECTIVES: The aim of this study was to propose a magnetic resonance imaging acquisition and analysis protocol that uses image segmentation to measure and depict fluid, fat, and muscle volumes in breast cancer-related lymphoedema (BCRL). This study also aims to compare affected and control (unaffected) arms of patients with diagnosed BCRL, providing an analysis of both the volume and the distribution of the different tissue components. MATERIALS AND METHODS: The entire arm was imaged with a fluid-sensitive STIR and a 2-point 3-dimensional T1W gradient-echo-based Dixon sequences, acquired in sagittal orientation and covering the same imaging volume...
May 19, 2017: Investigative Radiology
https://www.readbyqxmd.com/read/28535427/far-infrared-ray-fir-therapy-an-effective-and-oncological-safe-treatment-modality-for-breast-cancer-related-lymphedema
#3
Ke Li, Liang Xia, Ning Fei Liu, Fabio Nicoli, Joannis Constantinides, Christopher D'Ambrosia, Davide Lazzeri, Mathias Tremp, Ju Fang Zhang, Yi Xin Zhang
BACKGROUND: The incidence of breast cancer related lymphedema is approximately 5%. Far infrared ray (FIR) treatment can potentially reduce fluid volume and extremity circumference as well as the frequency of dermato-lymphangitis (DLA). However, there is no published data on the oncological safety of FIR and the potential for activation of any residual breast cancer cells. The aim of this study is to investigate the safety of far infrared ray (FIR) treatment of postmastectomy lymphedema, clinically and in vitro...
May 11, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28532249/breast-volume-is-affected-by-body-mass-index-but-not-age
#4
Celeste E Coltman, Julie R Steele, Deirdre E McGhee
BACKGROUND: This study aimed to establish normative breast volume data for women of varying ages, body masses and breast sizes, and to determine the effect of age and body mass index (BMI) on breast volume. METHODS: The breast volume of 356 women (age range: 18.1-83.7 years; BMI range: 18.4-54.5 kg/m²) was measured using three-dimensional scanning in a prone position Results: Breast volumes ranged from 48 mL - 3100 mL. Although breast volume was not significantly affected by age, it was significantly affected by BMI, with the breast volume of overweight and obese women being two-to-three times greater than women with normal BMI's...
May 22, 2017: Ergonomics
https://www.readbyqxmd.com/read/28528800/an-innovative-method-of-planning-and-displaying-flap-volume-in-diep-flap-breast-reconstructions
#5
S Hummelink, Arico C Verhulst, Thomas J J Maal, Yvonne L Hoogeveen, Leo J Schultze Kool, Dietmar J O Ulrich
BACKGROUND: Determining the ideal volume of the harvested flap to achieve symmetry in deep inferior epigastric artery perforator (DIEP) flap breast reconstructions is complex. With preoperative imaging techniques such as 3D stereophotogrammetry and computed tomography angiography (CTA) available nowadays, we can combine information to preoperatively plan the optimal flap volume to be harvested. In this proof-of-concept, we investigated whether projection of a virtual flap planning onto the patient's abdomen using a projection method could result in harvesting the correct flap volume...
April 23, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28514945/tumor-volume-to-breast-volume-ratio-for-improving-cosmetic-results-in-breast-cancer-patients-turacos-a-randomized-controlled-trial
#6
M Lagendijk, E L Vos, A H J Koning, M G M Hunink, J P Pignol, E M L Corten, C de Monye, C H M van Deurzen, J H van Dam, W W Vrijland, C M E Contant, C Verhoef, W van Lankeren, L B Koppert
BACKGROUND: Cosmetic result following breast conserving surgery (BCS) for cancer influences quality of life and psychosocial functioning in breast cancer patients. A preoperative prediction of expected cosmetic result following BCS is not (yet) standard clinical practice and therefore the choice for either mastectomy or BCS is still subjective. Recently, we showed that tumour volume to breast volume ratio as well as tumour location in the breast are independent predictors of superior cosmetic result following BCS...
May 17, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28498790/prognostic-value-of-percentage-change-in-metabolic-parameters-as-measured-by-dual-time-point-18-f-fdg-pet-ct-in-premenopausal-women-with-invasive-ductal-breast-carcinoma
#7
Jang Yoo, Hai-Jeon Yoon, Bom Sahn Kim
OBJECTIVES: We retrospectively evaluated the prognostic significance of dual-time point (DTP) (18)F-FDG positron emission tomography/computed tomography (PET/CT) parameters compared with clinicopathological findings in premenopausal women with invasive ductal breast carcinoma (IDC). MATERIALS AND METHODS: Sixty-six premenopausal women (mean age: 42.7 ± 5.6, range: 29.5-51.8 years) who had pathologically confirmed IDC were enrolled. The maximum standardized uptake value (SUVmax), metabolic tumor volume (MTV), and total lesion glycolysis (TLG) were measured and used to calculate percentage changes over the DTP time interval...
May 12, 2017: Journal of Women's Health
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
#8
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/28475815/translating-the-2-dimensional-mammogram-into-a-3-dimensional-breast-identifying-factors-that-influence-the-movement-of-pre-operatively-placed-wire
#9
Ko Un Park, David Nathanson
BACKGROUND: Pre-operative measurements from the skin to a wire-localized breast lesion can differ from operating room measurements. This study was designed to measure the discrepancies and study factors that may contribute to wire movement. METHODS: Prospective data were collected on patients who underwent wire localization lumpectomy. Clip and hook location, breast size, density, and direction of wire placement were the main focus of the analysis. RESULTS: Wire movement was more likely with longer distance from skin to hook or clip, larger breast size (especially if "fatty"), longer time between wire placement and surgery start time, and medial wire placement in larger breast...
May 5, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28472167/3d-forest-an-application-for-descriptions-of-three-dimensional-forest-structures-using-terrestrial-lidar
#10
Jan Trochta, Martin Krůček, Tomáš Vrška, Kamil Král
Terrestrial laser scanning is a powerful technology for capturing the three-dimensional structure of forests with a high level of detail and accuracy. Over the last decade, many algorithms have been developed to extract various tree parameters from terrestrial laser scanning data. Here we present 3D Forest, an open-source non-platform-specific software application with an easy-to-use graphical user interface with the compilation of algorithms focused on the forest environment and extraction of tree parameters...
2017: PloS One
https://www.readbyqxmd.com/read/28471290/is-the-transposition-of-the-nipple-areolar-complex-necessary-in-simon-grade-2b-gynecomastia-operations-using-suction-assisted-liposuction
#11
Burhan Özalp, Ömer Berköz, Mustafa Aydınol
OBJECTIVE: The aim of this study was to assess the efficacy of suction-assisted liposuction (SAL) in Simon grade 2b gynecomastia and its effect on sternal notch to nipple areola (SNN) distance. METHODS: A retrospective analysis was performed on 21 patients with grade 2b gynecomastia who underwent SAL. Preoperative and postoperative SNN distances of the patients were measured, the results were analysed using a Mann-Whitney U test and a p-value <.05 was accepted as statistically significant...
May 4, 2017: Journal of Plastic Surgery and Hand Surgery
https://www.readbyqxmd.com/read/28467142/monitoring-neoadjuvant-chemotherapy-for-breast-cancer-by-using-three-dimensional-subharmonic-aided-pressure-estimation-and-imaging-with-us-contrast-agents-preliminary-experience
#12
Kibo Nam, John R Eisenbrey, Maria Stanczak, Anush Sridharan, Adam C Berger, Tiffany Avery, Juan P Palazzo, Flemming Forsberg
Purpose To determine whether three-dimensional subharmonic aided pressure estimation (SHAPE) and subharmonic imaging can help predict the response of breast cancer to neoadjuvant chemotherapy. Materials and Methods In this HIPAA-compliant prospective study, 17 women (age range, 45-70 years) scheduled to undergo neoadjuvant therapy for breast cancer underwent ultrasonography (US) immediately before therapy and at completion of 10%, 60%, and 100% of chemotherapy. All patients provided written informed consent...
May 3, 2017: Radiology
https://www.readbyqxmd.com/read/28458968/the-aesthetic-items-scale-a-tool-for-the-evaluation-of-aesthetic-outcome-after-breast-reconstruction
#13
Rieky E G Dikmans, Lauren E H Nene, Mark-Bram Bouman, Henrica C W de Vet, Marc A M Mureau, Marlon E Buncamper, Hay A H Winters, Marco J P F Ritt, Margriet G Mullender
BACKGROUND: Valid tools to assess aesthetic outcomes after breast reconstructive surgery are scarce. Previously a professional aesthetic assessment scale was introduced, the Aesthetic Items Scale (AIS). We aim to determine if this method is a valid and reliable tool to assess aesthetic outcome after breast reconstructive surgery. METHODS: The study population was consenting women who underwent prophylactic mastectomy with subsequent implant-based breast reconstruction...
March 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28449957/assessment-of-breast-asymmetry-in-adolescent-idiopathic-scoliosis-using-an-automated-3d-body-surface-measurement-technique
#14
Joyce Ramsay, Lama Seoud, Soraya Barchi, Farida Cheriet, Julie Joncas, Isabelle Turgeon, Philippe Debanné, Isabelle Trop, Hubert Labelle, Stefan Parent
STUDY DESIGN: Cohort study. OBJECTIVES: To assess breast asymmetry (BA) directly with 3D surface imaging and to validate it using MRI values from a cohort of 30 patients with significant adolescent idiopathic scoliosis (AIS). Also, to study the influence of posture (prone vs standing) on BA using the automated method on both modalities. SUMMARY OF BACKGROUND DATA: BA is a common concern in young female patients with AIS. In a previous study using MRI, we found that the majority of patients with significant AIS experienced BA of up to 21% in addition to their chest wall deformity...
May 2017: Spine Deformity
https://www.readbyqxmd.com/read/28447239/the-potential-role-of-three-dimensional-surface-imaging-as-a-tool-to-evaluate-aesthetic-outcome-after-breast-conserving-therapy-bct
#15
Rachel L O'Connell, Rosa Di Micco, Komel Khabra, Lisa Wolf, Nandita deSouza, Nicola Roche, Peter A Barry, Anna M Kirby, Jennifer E Rusby
PURPOSE: To establish whether objective measurements of symmetry of volume and shape using three-dimensional surface imaging (3D-SI) can be used as surrogate markers of aesthetic outcome in patients who have undergone breast conserving therapy (BCT). METHODS: Women who had undergone unilateral BCT in the preceding 1-6 years were invited to participate. Participants completed a satisfaction questionnaire (BREAST-Q) and underwent 3D-SI. Volume and surface symmetry were measured on the images...
April 26, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28445356/what-is-the-standard-volume-to-increase-a-cup-size-for-breast-augmentation-surgery-a-novel-three-dimensional-computed-tomographic-approach
#16
Nina-Marie King, Vedran Lovric, William C H Parr, W R Walsh, Pouria Moradi
BACKGROUND: Breast augmentation surgery poses many challenges, and meeting the patient's expectations is one of the most important. Previous reports equate 100 cc to a one-cup-size increase; however, no studies have confirmed this between commercially available bras. The aim of this study was to identify the volume increase between cup sizes across different brands and the relationship with implant selection. METHODS: Five bra cup sizes from three different companies were analyzed for their volume capacity...
May 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28437336/both-bilateral-breast-volume-discrepancy-and-asymmetric-anterior-chest-wall-shape-contribute-to-the-unsightly-breast-contour-in-female-right-thoracic-idiopathic-scoliosis
#17
Benlong Shi, Saihu Mao, Xu Sun, Leilei Xu, Feng Zhu, Zezhang Zhu, Bangping Qian, Weijun Wang, Yong Qiu
STUDY DESIGN: A retrospective radiographic study. OBJECTIVE: To evaluate the asymmetry of breast volume (BV) and shape in female adolescent idiopathic scoliosis (AIS) patients and to define their relationship with deformed components of the anterior chest wall and curved spine. SUMMARY OF BACKGROUND DATA: The higher incidence of asymmetric breast development in AIS was described by prior studies. However, the interplay between scoliosis curve magnitude and severity of breast asymmetry (BA) are unknown...
May 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28429195/computer-assisted-diagnosis-system-for-breast-cancer-in-computed-tomography-laser-mammography-ctlm
#18
Afsaneh Jalalian, Syamsiah Mashohor, Rozi Mahmud, Babak Karasfi, M Iqbal Saripan, Abdul Rahman Ramli
Computed tomography laser mammography (Eid et al. Egyp J Radiol Nucl Med, 37(1): p. 633-643, 1) is a non-invasive imaging modality for breast cancer diagnosis, which is time-consuming and challenging for the radiologist to interpret the images. Some issues have increased the missed diagnosis of radiologists in visual manner assessment in CTLM images, such as technical reasons which are related to imaging quality and human error due to the structural complexity in appearance. The purpose of this study is to develop a computer-aided diagnosis framework to enhance the performance of radiologist in the interpretation of CTLM images...
April 20, 2017: Journal of Digital Imaging: the Official Journal of the Society for Computer Applications in Radiology
https://www.readbyqxmd.com/read/28427271/the-value-of-pre-and-post-neoadjuvant-chemotherapy-f-18-fdg-pet-ct-scans-in-breast-cancer-comparison-with-mri
#19
Eun Kyoung Choi, Ie Ryung Yoo, Sung Hun Kim, Sonya Youngju Park, Joo Hyun O, Bong Joo Kang
Background Accurate assessment of neoadjuvant chemotherapy (NAC) response with positron emission tomography/computed tomography (PET/CT) or magnetic resonance imaging (MRI) may provide appropriate operation guidelines for individual breast cancer patients. Purpose To compare the values of PET/CT and MRI for response evaluation following NAC in breast cancer patients. Material and Methods Thirty-three consecutive patients who underwent NAC were included. PET/CT and MRI were performed before and one to four weeks after NAC...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28421611/breast-density-measurement-using-photon-counting-spectral-mammography
#20
Henrik Johansson, Miriam von Tiedemann, Klaus Erhard, Harald Heese, Huanjun Ding, Sabee Molloi, Erik Fredenberg
PURPOSE: To evaluate a method for measuring breast density using photon-counting spectral mammography. Breast density is an indicator of breast cancer risk and diagnostic accuracy in mammography, and can be used as input to personalized screening, treatment monitoring and dose estimation. METHODS: The measurement method employs the spectral difference in x-ray attenuation between adipose and fibro-glandular tissue, and does not rely on any a priori information. The method was evaluated using phantom measurements on tissue-equivalent material (slabs and breast-shaped phantoms) and using clinical data from a screening population (n=1329)...
April 19, 2017: Medical Physics
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