keyword
MENU ▼
Read by QxMD icon Read
search

Contrast enhanced breast imaging

keyword
https://www.readbyqxmd.com/read/29221721/factors-affecting-the-precision-of-lesion-sizing-with-contrast-enhanced-spectral-mammography
#1
M Del Mar Travieso-Aja, P Naranjo-Santana, C Fernández-Ruiz, W Severino-Rondón, D Maldonado-Saluzzi, M Rodríguez Rodríguez, V Vega-Benítez, O P Luzardo
AIM: To evaluate the precision of the pre-surgical measurement of the size of breast cancer by contrast-enhanced spectral mammography (CESM). MATERIAL AND METHODS: This was a retrospective study of 204 breast cancers. Variables related to tumour biology and anthropometric variables were recorded and considered when evaluating the efficacy of CESM in predicting tumour size. Microscopic measurement of the largest diameter of the tumour at pathology was chosen as the reference standard...
December 5, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/29219225/dce-mri-texture-analysis-with-tumor-subregion-partitioning-for-predicting-ki-67-status-of-estrogen-receptor-positive-breast-cancers
#2
Ming Fan, Hu Cheng, Peng Zhang, Xin Gao, Juan Zhang, Guoliang Shao, Lihua Li
BACKGROUND: Breast tumor heterogeneity is related to risk factors that lead to worse prognosis, yet such heterogeneity has not been well studied. PURPOSE: To predict the Ki-67 status of estrogen receptor (ER)-positive breast cancer patients via analysis of tumor heterogeneity with subgroup identification based on patterns of dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI). STUDY TYPE: Retrospective study. POPULATION: Seventy-seven breast cancer patients with ER-positive breast cancer were investigated, of whom 51 had low Ki-67 expression...
December 8, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29217399/feasibility-of-breast-mri-after-sentinel-procedure-for-breast-cancer-with-superparamagnetic-tracers
#3
Benedict Krischer, Serafino Forte, Tilo Niemann, Rahel A Kubik-Huch, Cornelia Leo
RATIONALE: The gold standard for detection of axillary sentinel lymph nodes uses injection of a radioisotope (99Tc Nanocoll). As an alternative to this method, a magnetometer detecting the superparamagnetic tracer Sienna+® can be applied for detection of sentinel lymph nodes. The goal of this study was to determine whether interpretation of breast MRI is impaired by Sienna+® tracer residues in the operated breast and axillary lymph nodes after a sentinel procedure using this tracer...
November 26, 2017: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29217300/dynamic-magnetic-resonance-imaging-of-the-breast-comparison-of-gadobutrol-vs-gd-dtpa
#4
F Escribano, M Sentís, J C Oliva, L Tortajada, M Villajos, A Martín, S Ganau
OBJECTIVE: To compare the pharmacokinetic profile of gadobutrol versus Gd-DTPA in dynamic contrast-enhanced MRI (DCE-MRI) in patients with breast cancer. Secondary objectives included comparing the safety profiles and diagnostic efficacy of the two contrast agents for detecting additional malignant lesions. MATERIAL AND METHODS: This retrospective observational study included 400 patients with histologically confirmed breast cancer; 200 underwent DCE-MRI with Gd-DTPA (Magnevist®) and 200 underwent DCE-MRI with gadobutrol (Gadovist®)...
December 4, 2017: Radiología
https://www.readbyqxmd.com/read/29213007/the-value-of-lesion-size-as-an-adjunct-to-the-bi-rads-mri-2013-descriptors-in-the-diagnosis-of-solitary-breast-masses
#5
Makiko Kawai, Masako Kataoka, Shotaro Kanao, Mami Iima, Natsuko Onishi, Akane Ohashi, Rena Sakaguchi, Masakazu Toi, Kaori Togashi
PURPOSE: This study aimed to evaluate the MRI findings of breast solitary masses in diagnostic procedures to decide the appropriate category based on American College of Radiology (ACR) BI-RADS-MRI 2013, with the focus on lesion size. METHODS: A retrospective review of 2,603 consecutive breast MRI reports identified 250 pathologically-proven solitary breast masses. Dynamic-contrast enhanced images and diffusion-weighted images were performed on a 3.0/1.5 Tesla Scanner with a 16/4 channel dedicated breast coil...
December 7, 2017: Magnetic Resonance in Medical Sciences: MRMS
https://www.readbyqxmd.com/read/29205451/subdermal-ultrasound-contrast-agent-injection-for-sentinel-lymph-node-identification-an-analysis-of-safety-and-contrast-agent-dose-in-healthy-volunteers
#6
Priscilla Machado, Maria Stanczak, Ji-Bin Liu, Jason N Moore, John R Eisenbrey, Laurence Needleman, Walter K Kraft, Flemming Forsberg
OBJECTIVES: Mapping of the lymphatic chain for identification of the sentinel lymph node (SLN) is an important aspect of predicting outcomes for patients with breast cancer, and it is usually performed as an intraoperative procedure using blue dye and/or radiopharmaceutical agents. Recently, the use of contrast-enhanced ultrasound (CEUS) has been proposed as an alternative imaging technique for this mapping. The objective of this study was to evaluate the use of subdermal administration of the ultrasound (US) contrast agent Sonazoid (GE Healthcare, Oslo, Norway) in terms of patient safety and to select the dose to be used for lymphatic applications in humans...
December 5, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/29201942/dynamic-contrast-enhanced-magnetic-resonance-imaging-and-diffusion-weighted-magnetic-resonance-imaging-for-predicting-the-response-of-locally-advanced-breast-cancer-to-neoadjuvant-therapy-a-meta-analysis
#7
John Virostko, Allison Hainline, Hakmook Kang, Lori R Arlinghaus, Richard G Abramson, Stephanie L Barnes, Jeffrey D Blume, Sarah Avery, Debra Patt, Boone Goodgame, Thomas E Yankeelov, Anna G Sorace
This meta-analysis assesses the prognostic value of quantitative dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) and diffusion-weighted MRI (DW-MRI) performed during neoadjuvant therapy (NAT) of locally advanced breast cancer. A systematic literature search was conducted to identify studies of quantitative DCE-MRI and DW-MRI performed during breast cancer NAT that report the sensitivity and specificity for predicting pathological complete response (pCR). Details of the study population and imaging parameters were extracted from each study for subsequent meta-analysis...
January 2018: Journal of Medical Imaging
https://www.readbyqxmd.com/read/29190227/potential-of-noncontrast-magnetic-resonance-imaging-with-diffusion-weighted-imaging-in-characterization-of-breast-lesions-intraindividual-comparison-with-dynamic-contrast-enhanced-magnetic-resonance-imaging
#8
Pascal A T Baltzer, Hubert Bickel, Claudio Spick, Georg Wengert, Ramona Woitek, Panagiotis Kapetas, Paola Clauser, Thomas H Helbich, Katja Pinker
OBJECTIVES: The aim of this study was to assess the potential of noncontrast magnetic resonance imaging (NC-MRI) with diffusion-weighted imaging (DWI) in characterization of breast lesions in comparison to dynamic contrast-enhanced MRI (DCE-MRI) at 3 T. MATERIALS AND METHODS: Consecutive patients with conventional imaging (mammography, ultrasound) BI-RADS 4/5 findings were included in this institutional review board-approved single-center study. All underwent 3 T breast MRI including readout-segmented DWI, DCE, and T2-weighted sequences...
November 22, 2017: Investigative Radiology
https://www.readbyqxmd.com/read/29188177/ultrasound-stimulated-drug-delivery-using-therapeutic-reconstituted-high-density-lipoprotein-nanoparticles
#9
Fangyuan Xiong, Sabnis Nirupama, Shashank R Sirsi, Andras Lacko, Kenneth Hoyt
The abnormal tumor vasculature and the resulting abnormal microenvironment are major barriers to optimal chemotherapeutic drug delivery. It is well known that ultrasound (US) can increase the permeability of the tumor vessel walls and enhance the accumulation of anticancer agents. Reconstituted high-density lipoproteins (rHDL) nanoparticles (NPs) allow selective delivery of anticancer agents to tumor cells via their overexpressed scavenger receptor type B1 (SR-B1) receptor. The goal of this study is to investigate the potential of noninvasive US therapy to further improve delivery and tumor uptake of the payload from rHDL NPs, preloaded with an infrared dye (IR-780), aimed to establish a surrogate chemotherapeutic model with optical localization...
2017: Nanotheranostics
https://www.readbyqxmd.com/read/29187481/pre-surgical-multiparametric-assessment-of-breast-lesions-using-3-tesla-magnetic-resonance
#10
Hynek Mirka, Radek Tupy, Andrea Narsanska, Ondrej Hes, Jiri Ferda
BACKGROUND/AIM: The aim of this study was to evaluate experience with multiparametric breast imaging on 3-Tesla magnetic resonance (3T-MRI) scanner using a dedicated 18-channel coil compared to histological findings in women after surgery. MATERIALS AND METHODS: The study included 100 women with 105 Breast Imaging Reporting and Data System (BI-RADS) 4 to 6 lesions by mammography who were examined using 3T-MRI and subsequently underwent surgery. MRI included non-contrast T1, T2 and T2 short tau inversion recovery (STIR) sequences, diffusion-weighted imaging with apparent diffusion coeficient maps, postcontrast dynamic study and single-voxel MRI spectroscopy...
December 2017: Anticancer Research
https://www.readbyqxmd.com/read/29178258/feasibility-analysis-of-early-temporal-kinetics-as-a-surrogate-marker-for-breast-tumor-type-grade-and-aggressiveness
#11
Laura Heacock, Alana A Lewin, Yiming Gao, James S Babb, Samantha L Heller, Amy N Melsaether, Neeti Bagadiya, Sungheon G Kim, Linda Moy
BACKGROUND: Screening breast MRI has been shown to preferentially detect high-grade ductal carcinoma in situ (DCIS) and invasive carcinoma, likely due to increased angiogenesis resulting in early initial uptake of contrast. As interest grows in abbreviated screening breast MRI (AB-MRI), markers of early contrast washin that can predict tumor grade and potential aggressiveness are of clinical interest. PURPOSE: To evaluate the feasibility of using the initial enhancement ratio (IER) as a surrogate marker for tumor grade, hormone receptor status, and prognostic markers, as an initial step to being incorporated into AB-MRI...
November 27, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29159881/characterization-of-photon-counting-multi-slit-breast-tomosynthesis
#12
Karl Berggren, Björn Cederström, Mats Lundqvist, Erik Fredenberg
PURPOSE: It has been shown that breast tomosynthesis may improve sensitivity and specificity compared to 2D mammography, resulting in increased detection-rate of cancers or lowered call-back rates. The purpose of this study is to characterize a spectral photon-counting multi-slit breast tomosynthesis system that is able to do single-scan spectral imaging with multiple collimated x-ray beams. The system differs in many aspects compared to conventional tomosynthesis using energy-integrating flat-panel detectors...
November 21, 2017: Medical Physics
https://www.readbyqxmd.com/read/29153365/comparison-of-screening-cedm-and-mri-for-women-at-increased-risk-for-breast-cancer-a-pilot-study
#13
Maxine S Jochelson, Katja Pinker, D David Dershaw, Mary Hughes, Girard F Gibbons, Kareem Rahbar, Mark E Robson, Debra A Mangino, Debra Goldman, Chaya S Moskowitz, Elizabeth A Morris, Janice S Sung
OBJECTIVES: Contrast enhanced digital mammography (CEDM) is a new breast imaging technology increasingly used in the diagnostic setting but its utility in the pure screening setting has not been reported. The goal of this pilot study is to prospectively compare screening CEDM to breast MRI in women with an increased risk for breast cancer. METHODS: In this IRB-approved HIPAA-compliant study, 318 women at increased breast cancer risk were consented (December 2012-May 2015) to undergo CEDM in addition to their scheduled MRI...
December 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/29152563/integrated-radiomic-framework-for-breast-cancer-and-tumor-biology-using-advanced-machine-learning-and-multiparametric-mri
#14
Vishwa S Parekh, Michael A Jacobs
Radiomics deals with the high throughput extraction of quantitative textural information from radiological images that not visually perceivable by radiologists. However, the biological correlation between radiomic features and different tissues of interest has not been established. To that end, we present the radiomic feature mapping framework to generate radiomic MRI texture image representations called the radiomic feature maps (RFM) and correlate the RFMs with quantitative texture values, breast tissue biology using quantitative MRI and classify benign from malignant tumors...
2017: NPJ Breast Cancer
https://www.readbyqxmd.com/read/29147077/application-of-breast-ultrasound-elastography-to-differentiate-intracapsular-collection-from-silicone-induced-granuloma-of-breast-implant-capsule-complementarily-to-contrast-enhanced-breast-magnetic-resonance-imaging
#15
Eduardo de Faria Castro Fleury, Ana Claudia Gianini, Veronica Ayres, Luciana C Ramalho, Decio Roveda, Vilmar Marques de Oliveira
Background: To determine whether there is correlation between magnetic resonance imaging (MRI) findings and breast elastography to differentiate seroma/hematoma from silicone-induced granuloma of breast implant capsule (SIGBIC). Methods: Prospective study of 99 patients with breast implants submitted to breast MRI during the period from February 1 to May 1, 2017. Patients who present MRI findings of seroma/hematoma or SIGBIC were submitted to a complementary ultrasound elastography study to evaluate the correlation of the results...
2017: Breast Cancer: Basic and Clinical Research
https://www.readbyqxmd.com/read/29140576/comparison-between-qualitative-and-quantitative-assessment-of-background-parenchymal-enhancement-on-breast-mri
#16
Akshat C Pujara, Artem Mikheev, Henry Rusinek, Yiming Gao, Chloe Chhor, Kristine Pysarenko, Harikrishna Rallapalli, Jerzy Walczyk, Melanie Moccaldi, James S Babb, Amy N Melsaether
BACKGROUND: Potential clinical implications of the level of background parenchymal enhancement (BPE) on breast MRI are increasing. Currently, BPE is typically evaluated subjectively. Tests of concordance between subjective BPE assessment and computer-assisted quantified BPE have not been reported. PURPOSE OR HYPOTHESIS: To compare subjective radiologist assessment of BPE with objective quantified parenchymal enhancement (QPE). STUDY TYPE: Cross-sectional observational study...
November 15, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29134191/assessing-treatment-response-in-triple-negative-breast-cancer-from-quantitative-image-analysis-in-perfusion-magnetic-resonance-imaging
#17
Imon Banerjee, Sadhika Malladi, Daniela Lee, Adrien Depeursinge, Melinda Telli, Jafi Lipson, Daniel Golden, Daniel L Rubin
Dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) is sensitive but not specific to determining treatment response in early stage triple-negative breast cancer (TNBC) patients. We propose an efficient computerized technique for assessing treatment response, specifically the residual tumor (RT) status and pathological complete response (pCR), in response to neoadjuvant chemotherapy. The proposed approach is based on Riesz wavelet analysis of pharmacokinetic maps derived from noninvasive DCE-MRI scans, obtained before and after treatment...
January 2018: Journal of Medical Imaging
https://www.readbyqxmd.com/read/29120811/magnetic-resonance-mr-features-in-triple-negative-breast-cancer-tnbc-vs-receptor-positive-cancer-ntnbc
#18
Giulia Angelini, Carolina Marini, Chiara Iacconi, Dionisia Mazzotta, Monica Moretti, Eugenia Picano, Riccardo Morganti
Few reports in literature describe triple negative breast cancer (TNBC) imaging findings. Aim of the study is to determine MR-features of TNBC compared to receptor positive cancer (nTNBC). From May 2014 to May 2015, we retrospectively enrolled 31 consecutive patients with histological diagnosis of TNBC and a control group of 31 consecutive nTNBC observed in the same period, out of 602 cancer, diagnosed in our department in the same year. Histopathological analysis and MR-features of TNBC (31 patients) were compared to nTNBC (31 patients)...
October 27, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/29110505/effects-of-contrast-enhancement-on-diffusion-weighted-imaging-and-apparent-diffusion-coefficient-measurements-in-3-t-magnetic-resonance-imaging-of-breast-lesions
#19
Valentina Cipolla, Daniele Guerrieri, Giacomo Bonito, Simone Celsa, Carlo de Felice
Background The effect of gadolinium-based contrast agents on diffusion-weighted imaging (DWI) measurements of breast lesions is still not clear. Purpose To investigate gadolinium effects on DWI and apparent diffusion coefficient (ADC) in breast lesions and normal parenchyma with 3 Tesla contrast-enhanced MRI. Material and Methods Pre- and post-contrast DWI (b = 0 and b = 1000 s/mm(2)) were acquired in 47 patients. Measured ADC values, pre- and post-contrast T2 signal intensity (T2 SI) and contrast-to-noise ratio (CNR) were compared with Wilcoxon signed-rank and rank-sum test ( P < 0...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/29107353/ultrasound-imaging-technologies-for-breast-cancer-detection-and-management-a-review
#20
REVIEW
Rongrong Guo, Guolan Lu, Binjie Qin, Baowei Fei
Ultrasound imaging is a commonly used modality for breast cancer detection and diagnosis. In this review, we summarize ultrasound imaging technologies and their clinical applications for the management of breast cancer patients. The technologies include ultrasound elastography, contrast-enhanced ultrasound, 3-D ultrasound, automatic breast ultrasound and computer-aided detection of breast ultrasound. We summarize the study results seen in the literature and discuss their future directions. We also provide a review of ultrasound-guided, breast biopsy and the fusion of ultrasound with other imaging modalities, especially magnetic resonance imaging (MRI)...
October 26, 2017: Ultrasound in Medicine & Biology
keyword
keyword
21358
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"