Imaging Studies IV: Magnetic Resonance Imaging
Magnetic Resonance Imaging
Imaging Studies I: CT and MRI
Anatomical Positions
Imaging Studies for Cardiovascular System IV: CMRI
Radiological Investigation II: MRI and Ventilation Perfusion Scan
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Updated: May 29, 2026

Tracking the Mammary Architectural Features and Detecting Breast Cancer with Magnetic Resonance Diffusion Tensor Imaging
Published on: December 15, 2014
Peter Siegler1, Claire M B Holloway, Petrina Causer
1Sunnybrook Health Sciences Centre, Division of Imaging Research, Toronto, ON, Canada. peter.siegler@hologic.com
This study introduces a specialized setup for breast magnetic resonance imaging (MRI) performed while the patient lies on their back. By using a flexible coil and motion-correction software, the researchers achieved high-quality images that match standard diagnostic scans. This approach helps bridge the gap between imaging and surgical procedures, which are typically done in this position.
Area of Science:
Background:
Standard diagnostic breast imaging typically requires patients to lie face down. This prone orientation creates a significant mismatch with surgical or biopsy procedures. Most clinical interventions occur while the patient is positioned on their back. No prior work had resolved the difficulty of obtaining high-quality scans in this supine posture. That uncertainty drove the need for specialized hardware and software adaptations. Prior research has shown that breast tissue morphology changes drastically between different body positions. This gap motivated the development of a system that conforms to the patient. The current study addresses these limitations by designing a flexible interface for supine imaging.
Purpose Of The Study:
The aim of this study is to achieve high-quality unilateral supine breast magnetic resonance imaging. This work seeks to facilitate the integration of imaging into various clinical applications. Many surgical procedures and biopsies are performed while the patient is in the supine position. Standard prone imaging often hinders the effective use of these scans for surgical guidance. This gap motivated the researchers to develop a system that bridges the positional mismatch. The authors intended to create a fixture and coil that conform to the patient. They also aimed to incorporate respiratory motion compensation into the imaging sequence. This effort addresses the need for consistent anatomical data across different clinical settings.
Main Methods:
The review approach involved designing a specialized fixture to stabilize the patient. Researchers utilized a flexible four-element receive coil to ensure optimal signal acquisition. They implemented a modified 3D spoiled gradient sequence to handle physiological movement. The team conducted volunteer experiments to refine the hardware configuration. A pilot patient study followed to evaluate the practical performance of the setup. Data collection focused on achieving high-quality images in the supine orientation. The investigators compared these results against standard prone diagnostic protocols. This systematic evaluation confirmed the feasibility of the proposed imaging workflow.
Main Results:
The study reports that the developed system produces images with diagnostic value comparable to standard prone scans. Researchers observed distinct differences in breast shape between the two patient positions. Tissue morphology also showed significant variations when comparing supine and prone orientations. The modified sequence successfully mitigated artifacts caused by breathing. Volunteer testing confirmed the stability of the flexible coil interface. The pilot patient study validated the clinical applicability of the hardware. These findings indicate that supine scans provide accurate anatomical representation. The authors emphasize that the registration of these images supports existing clinical workflows.
Conclusions:
The researchers propose that their novel hardware setup successfully enables high-quality supine breast imaging. This study demonstrates that flexible coil designs allow for close conformity to the breast surface. The authors suggest that respiratory motion compensation is vital for maintaining diagnostic clarity during these scans. They report that the resulting image quality is comparable to standard prone diagnostic procedures. The team highlights that tissue morphology varies significantly between different patient positions. These findings imply that supine imaging could improve the accuracy of image-guided clinical interventions. The authors conclude that this registration process supports procedures like ultrasound-guided biopsies. This work provides a foundation for integrating advanced imaging into routine surgical workflows.
The researchers propose a combination of a custom flexible four-element receive coil and a modified 3D spoiled gradient sequence. This hardware-software pairing allows for patient-specific shaping and active respiratory motion compensation to ensure high diagnostic value.
A specialized fixture and a flexible four-element receive coil were developed. These components allow the imaging hardware to conform closely to the breast tissue, which is necessary for capturing detailed anatomical information while the patient lies on their back.
Respiratory motion compensation is necessary because the chest wall moves during breathing. Without this modification to the 3D spoiled gradient sequence, the images would suffer from artifacts that degrade diagnostic quality, making it impossible to match the clarity of standard prone scans.
The flexible coil serves as the interface for patient-specific shaping. Its role is to maintain close proximity to the breast, ensuring that the signal-to-noise ratio remains high despite the lack of the compression typically provided by prone positioning devices.
The researchers measured variations in breast shape and internal tissue morphology. They compared these findings between supine scans and standard prone diagnostic MRI to demonstrate that the new method captures clinically relevant anatomical data.
The authors propose that registering these supine images will aid clinical applications like breast-conserving surgery. By aligning the MRI data with the patient's actual position during surgery, clinicians may achieve better guidance than with prone-only imaging.