A fast 3D-imaging technique for performing dynamic Gd-enhanced MRI of breast lesions
| Autor: | Christina G. Janney, Elisabeth Heiberg, Joseph Grunz, William H. Perman, Virginia M. Herrmann |
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| Rok vydání: | 1994 |
| Předmět: |
Gadolinium DTPA
medicine.medical_specialty Breast imaging media_common.quotation_subject Biomedical Engineering Biophysics Contrast Media Breast Neoplasms Lesion Predictive Value of Tests medicine Image Processing Computer-Assisted Organometallic Compounds Contrast (vision) Humans Radiology Nuclear Medicine and imaging media_common business.industry Pulse sequence Pentetic Acid Magnetic Resonance Imaging 3d image Temporal resolution Female Imaging technique Radiology medicine.symptom business Nuclear medicine Delay time |
| Zdroj: | Magnetic resonance imaging. 12(4) |
| ISSN: | 0730-725X |
| Popis: | The characterization of breast lesions by their Gd-enhancement profiles has been proposed as a method for differentiating benign from malignant breast lesions. The limitations of dynamic contrast enhanced 2D imaging of the breast are the low number of slices that can be acquired, and the need to know the location of the lesion a priori to correctly select the noncontiguous 2D slice locations. These problems are exacerbated when multi-focal disease is present but not anticipated. Standard fast 3D gradient-echo imaging has a variable delay between successive acquisitions. We have developed a fast 3D gradient-echo imaging technique for dynamic Gd-DTPA enhanced breast imaging which obtains multiple 3D image sets of 32 contiguous images at 44 s intervals without an interscan delay time. This rapid 3D imaging technique achieves good temporal resolution and reduces patient motion between pre- and postcontrast images while covering a much larger portion of the breast and eliminating the need for a priori knowledge concerning the location of the lesion(s) when performing Gd-enhanced dynamic MR imaging. |
| Databáze: | OpenAIRE |
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