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Near real-rime MRI of interstitial laser photocoagulation ofin vivo rat liver
- Source :
- Magma: Magnetic Resonance Materials in Physics, Biology, and Medicine. 2:299-302
- Publication Year :
- 1994
- Publisher :
- Springer Science and Business Media LLC, 1994.
-
Abstract
- Magnetic resonance imaging (MRI) is showing considerable promise as a monitor for interventional procedures. Laser surgery is “MRI compatible, ” and temperature-sensitive imaging techniques can be usefully applied to these procedures. We have been investigatingT1derived temperature-dependent imaging as a monitor for interstitial laser photocoagulation (ILP) in rat liver.In vitro experiments suggested that temperature calibration may be achieved. We have investigated ILPin vivo using short TR spin-echo imaging sequences taking one set of images every 30 s during and after the procedure. Our resultsin vivo suggest that this simple model may be inadequate for temperature mapping as the biological reaction to the ILP is on a similar time scale to that of the procedure. Nonetheless, MRI shows well-defined, repeatable signal changes that can be related to histological borders.
- Subjects :
- Laser surgery
Materials science
Radiological and Ultrasound Technology
medicine.diagnostic_test
Biological reaction
medicine.medical_treatment
Biophysics
Mri compatible
Interstitial laser
Magnetic resonance imaging
Similar time
Nuclear magnetic resonance
Rat liver
medicine
Radiology, Nuclear Medicine and imaging
Temperature mapping
Biomedical engineering
Subjects
Details
- ISSN :
- 13528661
- Volume :
- 2
- Database :
- OpenAIRE
- Journal :
- Magma: Magnetic Resonance Materials in Physics, Biology, and Medicine
- Accession number :
- edsair.doi...........100fea09915250bfb0b8b29790e65f95