scholarly journals Value of Magnetic Resonance Imaging Features in Diagnosis and Treatment of Breast Cancer under Intelligent Algorithms

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Shuang Liu ◽  
Min Tang ◽  
Shuqin Ruan ◽  
Feng Wei ◽  
Jiaxi Lu
Keyword(s):  
Breast Cancer ◽  
Magnetic Resonance Imaging ◽  
Breast Mri ◽  
Imaging Features ◽  
Mri Imaging ◽  
Resonance Imaging ◽  
Intelligent Algorithms ◽  
Mri Diagnosis ◽  
Diagnosis Model ◽  
Mri Image

This study was to analyze the clinical application value of magnetic resonance imaging (MRI) image features based on intelligent algorithms in the diagnosis and treatment of breast cancer and to provide an effective reference assessment for breast cancer diagnosis. The MRI diagnosis model (ACO-MRI) based on the ant colony algorithm (ACO) was proposed, which was compared with the diagnosis methods based on support vector machine (SVM) and proximity (KNN) algorithm, and the proposed algorithm was applied to MRI images to diagnose breast cancer. The results showed that the accuracy, sensitivity, and specificity of the ACO-MRI model were greater than those of the KNN and SVM algorithm. Moreover, the specificity was statistically considerable compared with the two algorithms of KNN and SVM ( P < 0.05 ). By comparing 1/5 number of ants and the average gray path of the ACO-MRI model under 1/8 number of ants, it was found that the average gray path value of 1/8 number of ants was greatly higher than the average gray path value of 1/5 number of ants ( P < 0.05 ). The differences in the overall distribution of breast MRI imaging features among Luminal A, Luminal B, HER-2 overexpression, and TN were compared. There were considerable differences in the overall distribution of the three breast MRI imaging features of the boundaries, morphology, and enhancement methods among the four groups ( P < 0.05 ). In short, MRI image based on the intelligent algorithm ACO-MRI diagnosis model can effectively improve the diagnosis effect of breast cancer. Its image feature boundaries, morphology, and enhancement methods had good imaging features in the diagnosis of breast cancer.

Magnetic Resonance Imaging Features in Triple-Negative Breast Cancer: Comparison With Luminal and HER2-Overexpressing Tumors

2012 ◽  
Vol 12 (5) ◽  
pp. 331-339 ◽  
Author(s):  
Melania Costantini ◽  
Paolo Belli ◽  
Daniela Distefano ◽  
Enida Bufi ◽  
Marialuisa Di Matteo ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Triple Negative Breast Cancer ◽  
Triple Negative ◽  
Imaging Features ◽  
Resonance Imaging

Magnetic Resonance Imaging of the Breast

2001 ◽  
Vol 8 (5) ◽  
pp. 399-406 ◽  
Author(s):  
Christopher P. Goscin ◽  
Claudia G. Berman ◽  
Robert A. Clark
Keyword(s):  
Breast Cancer ◽  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Clinical Studies ◽  
Breast Imaging ◽  
Breast Mri ◽  
Resonance Imaging ◽  
Valuable Adjunct ◽  
Interpretation Criteria ◽  
Contrast Enhanced

Background Magnetic resonance imaging (MRI) has the potential to become a useful adjunct in breast imaging. Contrast-enhanced breast MRI has demonstrated a high sensitivity in the detection of invasive breast cancer. In clinical studies, breast MRI has often altered the course of patient care. Although promising results have been generated, MRI of the breast is currently in a development stage. Methods The authors reviewed the literature on the potential indications, sensitivity, specificity, and limitations of MRI of the breast. Results Reported advantages of MRI of the breast over conventional imaging techniques include improved staging and treatment planning, enhanced evaluation of the augmented breast, better detection of recurrence, and improved screening of high-risk women. Contrast-enhanced breast MRI is a sensitive modality for detecting breast cancer, but its variable specificity is a major limitation. Conclusions MRI of the breast is emerging as a valuable adjunct to mammography and sonography for specific clinical indications. Additional clinical studies that define indications, interpretation criteria, imaging parameters, and cost effectiveness are needed. A multi-institutional study designed to address these issues is in progress.

scholarly journals Indications for breast magnetic resonance imaging at a referral center for the diagnosis and treatment of breast cancer in Brazil

2021 ◽  
Vol 54 (2) ◽  
pp. 83-86
Author(s):  
Samuel Silva Ferreira ◽  
Adriene Moraes Campos ◽  
Patrícia Lima Fernandes ◽  
Izabela Machado Pereira ◽  
Flavia Maria Rodrigues ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Magnetic Resonance Imaging ◽  
High Risk ◽  
Magnetic Resonance ◽  
Breast Magnetic Resonance Imaging ◽  
Breast Mri ◽  
Diagnosis And Treatment ◽  
Resonance Imaging ◽  
Referral Center ◽  
Breast Magnetic Resonance

Abstract Objective: To describe the indications for breast magnetic resonance imaging (MRI) at a referral center for breast cancer in Brazil. Materials and Methods: This was a retrospective study in which we reviewed the clinical records, including physician requests and patient questionnaires, of women who underwent breast MRI between 2014 and 2018 at a referral center for the diagnosis and treatment of breast cancer in the city of Belo Horizonte, Brazil. Results: The most common indication for breast MRI was as a complement to mammography/ultrasonography (in 43.6% of cases), followed by breast cancer staging (in 25.1%), the screening of patients at high risk (in 17.4%), the evaluation of breast implants (in 10.1%), and the evaluation of the response to neoadjuvant chemotherapy (in 3.8%). Conclusion: Although there is strong evidence supporting the use of breast MRI, mainly for the screening of high-risk patients, the imaging method is underutilized in Brazil.

scholarly journals Breast Magnetic Resonance Imaging of Multicentric, Multifocal and Bilateral Cancer — A Case-based Review

2011 ◽  
Vol 07 (01) ◽  
pp. 24
Author(s):  
Virginia Pérez Dueñas ◽  
María Ruíz de Gopegui Andreu ◽  
Sara Morón Hodge ◽  
Asunción Suárez Manrique ◽  
◽  
...  
Keyword(s):  
Breast Cancer ◽  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
False Positive ◽  
Breast Magnetic Resonance Imaging ◽  
Breast Mri ◽  
Resonance Imaging ◽  
Mri Findings ◽  
Mri Features ◽  
Breast Magnetic Resonance

Multifocal or multicentric breast cancer can be difficult to detect on mammography or ultrasound, particularly in patients with dense breast tissue. A multimodality approach that includes breast magnetic resonance imaging (MRI) is indicated, particularly when conservative surgery is being considered as it is the most sensitive technique for identifying additional sites of disease. However, its influence on recurrence and survival rates has yet not been clearly established, and false-positive cases may lead to more aggressive management and treatment. Radiologists should therefore be aware of relevant breast MRI findings. Infiltrating carcinomas, contralateral unsuspected carcinomas, occult carcinomas, false-positive cases and post-chemotherapy changes. Several cases of multiple-site breast carcinomas and their corresponding mammographic, ultrasound and MRI features have been reviewed for this article, in which the definition and differences between multifocal, multicentric and contralateral breast carcinoma are explained and the most relevant imaging findings on MRI are illustrated and correlated with mammogram and ultrasound findings. Finally, the role of breast MRI in the pre-operative assessment of breast cancer is discussed.

scholarly journals Four magnetic resonance imaging surveillance-detected breast cancer cases in cancer-free BRCA1/2 mutation carriers

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Megumi Takaoka ◽  
Shozo Ohsumi ◽  
Yuichiro Miyoshi ◽  
Mina Takahashi ◽  
Seiki Takashima ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Magnetic Resonance Imaging ◽  
Ovarian Cancer ◽  
Magnetic Resonance ◽  
Breast Mri ◽  
Resonance Imaging ◽  
Breast And Ovarian Cancer ◽  
Guided Biopsy ◽  
Mutation Carriers ◽  
Mri Surveillance

Abstract Background Hereditary breast and ovarian cancer (HBOC) syndrome is a susceptibility syndrome for cancers, such as breast and ovarian cancer, and BRCA1/2 are its causative genes. Annual breast-enhanced magnetic resonance imaging (MRI) is recommended for BRCA1/2 mutation carriers aged over 25 years as a secondary prevention of breast cancer. However, breast MRI surveillance is rarely performed in Japan, and only four cases of breast cancer diagnosis triggered by MRI surveillance have been reported. Case presentation At our hospital, MRI triggered the diagnosis of breast cancer in four cancer-free BRCA1/2 mutation carriers. In one of our four cases, although MRI showed only a 3-mm focus, we could diagnose breast cancer by shortening the surveillance interval considering the patient’s high-risk for developing breast cancer. Conclusions Image-guided biopsy, including MRI-guided biopsy, depending on the size of the lesion, and shorter surveillance intervals are useful when there are potentially malignant findings on breast MRI surveillance for cancer-free patients with HBOC.

scholarly journals The Role of Preoperative Bilateral Breast Magnetic Resonance Imaging in Patient Selection for Partial Breast Irradiation in Ductal CarcinomaIn Situ

2012 ◽  
Vol 2012 ◽  
pp. 1-6
Author(s):  
Kristin V. Kowalchik ◽  
Laura A. Vallow ◽  
Michelle McDonough ◽  
Colleen S. Thomas ◽  
Michael G. Heckman ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Breast Magnetic Resonance Imaging ◽  
Breast Mri ◽  
Partial Breast Irradiation ◽  
Breast Irradiation ◽  
Resonance Imaging ◽  
Ipsilateral Breast ◽  
Breast Magnetic Resonance

Purpose. Women with ductal carcinomain situ(DCIS) are often candidates for breast-conserving therapy, and one option for radiation treatment is partial breast irradiation (PBI). This study evaluates the use of preoperative breast magnetic resonance imaging (MRI) for PBI selection in DCIS patients.Methods. Between 2002 and 2009, 136 women with newly diagnosed DCIS underwent a preoperative bilateral breast MRI at Mayo Clinic in Florida. One hundred seventeen women were deemed eligible for PBI by the NSABP B-39 (National Surgical Adjuvant Breast and Bowel Project, Protocol B-39) inclusion criteria using physical examination, mammogram, and/or ultrasound. MRIs were reviewed for their impact on patient eligibility, and findings were pathologically confirmed.Results. Of the 117 patients, 23 (20%) were found ineligible because of pathologically proven MRI findings. MRI detected additional ipsilateral breast cancer in 21 (18%) patients. Of these women, 15 (13%) had more extensive disease than originally noted before MRI, and 6 (5%) had multicentric disease in the ipsilateral breast. In addition, contralateral breast cancer was detected in 4 (4%).Conclusions. Preoperative breast MRI altered the PBI recommendations for 20% of women. Bilateral breast MRI should be an integral part of the preoperative evaluation of all patients with DCIS being considered for PBI.

Sign in / Sign up

Export Citation Format

Share Document