Nuclear magnetic resonance imaging of the human breast

Yousef, Saba J. El; Duchesneau, Renate H.; Alfidi, Ralph J.

doi:10.1148/radiographics.4.1.113

Cited by 8 publications

(7 citation statements)

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“…The spatial resolution of MRI has not allowed microcalcifications to be imaged. In two series in which a total of 173 patients and 45 cancers were evaluated, MRI was unable to detect microcalcifications [23,24]. The differentiation of cysts from other lesions was possible, and malignant lesions were often differentiated from benign masses on the basis of their geometry.…”

Section: Magnetic Resonance Imagingmentioning

confidence: 99%

Imaging techniques in breast cancer

Dershaw

Osborne

1989

Seminars in Surgical Oncology

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In the diagnosis of clinically inapparent breast cancer, mammography remains the most effective imaging modality, which is due in large part to its ability to detect microcalcifications. Of the ancillary modalities, sonography is the most useful because it readily differentiates cysts from other breast lesions. Internal mammary and axillary node imaging have been tried with varying levels of success, but false-positive and false-negative rates remain high with available techniques. Pulmonary metastases are best evaluated by chest X-ray with specificity increased by other imaging techniques. Liver and bone metastases may be screened for with isotope scans with computerized tomography, sonography, and magnetic resonance imaging, increasing the specificity of abnormal scans. CT and MRI are the most effective tools for evaluating CNS disease.

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Section: Magnetic Resonance Imagingmentioning

confidence: 99%

Imaging techniques in breast cancer

Dershaw

Osborne

1989

Seminars in Surgical Oncology

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“…Whole body volume coils were initially used for breast MRI scanning. However, poor results demonstrated that the volume RF coils are less efficient for imaging a localized region of the body (3). To improve the signal to noise ratio and enhance the image quality, close-fitting phased array (surface) coils were proposed and developed for breast coil design.…”

Section: Introductionmentioning

confidence: 99%

Inverse design of a phased‐array coil for breast magnetic resonance imaging

Liu

Weber

et al. 2009

Concepts Magn Reson

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Breast magnetic resonance imaging (MRI) is a very useful tool for human breast cancer detection and the advance of dedicated RF coil technology is essential for enhanced image quality. In this work, we propose an efficient, hybrid algorithm for the inverse design of a phased array coil for breast MRI. The design method starts with the specification of the desired RF (B 1 ) field within a predefined region, using the so-called target-field technique, followed by a streamline function method to find the initial coil winding by discretizing the calculated continuous current density. Then, a deformation approach is used to further optimize the coil shape by adjusting the coordinates of the selected control nodes on the coil contours; in this step, an iterative optimization algorithm is employed to minimize the cost functions that are mainly focused on the B 1 homogeneity and coil inductance. A two-element array breast coil has been designed using this method. The simulated and experimental results presented herein demonstrate the potential of the proposed design technique to produce low-inductance coil structures with improved RF field.

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“…Building rapidly on Damadian’s findings, applications for breast magnetic resonance imaging (bMRI) were developed and tested, usually in collaborative efforts between radiologists and breast surgeons. Among these studies was an early clinical trial led by el Yousef and Duchesneau (3) that described bMRI as an adjunct to mammography and also identified criteria to further differentiate benign and malignant lesions (3–6). Other contemporaneous studies were undertaken to examine the efficacy of bMRI in the diagnosis of multicentric/focal, or occult disease (7–9), all of which contributed to the current clinical application of bMRI.…”

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confidence: 99%

The Importance of Preoperative Breast MRI for Patients Newly Diagnosed with Breast Cancer

Crowe¹,

Patrick²,

Rim

2009

The Breast Journal

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The use of preoperative breast magnetic resonance imaging (bMRI) for patients newly diagnosed with breast cancer has been criticized for increasing the number of therapeutic mastectomies performed, as well as increasing the cost of treatment. The purpose of this report is to examine one surgeon's practice and to describe the MRI findings for patients with breast cancer to determine if those findings changed the therapeutic options for those patients in. Data were collected prospectively between August 2003 and January 2006 for patients newly diagnosed with breast cancer. Diagnoses were made by core biopsy or fine-needle aspiration; all lesions were intact at the time of MRI. Twenty-five percent of patients were found to have previously occult, but suspicious lesions on MRI that required additional diagnostic evaluation, including ultrasound, core biopsy, excisional biopsy, or any combination; for approximately half of these patients a separate cancer was confirmed. For most of these patients, the new lesion was ipsilateral and multicentric, and most required mastectomy. For the remaining 75% of patients, MRI confirmed the index lesion was the only area of concern, and appropriate surgical treatment was completed. Preoperative bMRI for patients newly diagnosed with breast cancer identified previously occult and separate tumors in 13% of patients, resulting in surgical treatment change for many.

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Nuclear magnetic resonance imaging of the human breast

Cited by 8 publications

References 0 publications

Imaging techniques in breast cancer

Imaging techniques in breast cancer

Inverse design of a phased‐array coil for breast magnetic resonance imaging

The Importance of Preoperative Breast MRI for Patients Newly Diagnosed with Breast Cancer

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