Deutsch
 
Hilfe Datenschutzhinweis Impressum
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT

Freigegeben

Zeitschriftenartikel

Integrated active tracking detector for MRI-guided interventions

MPG-Autoren
Es sind keine MPG-Autoren in der Publikation vorhanden
Externe Ressourcen
Volltexte (beschränkter Zugriff)
Für Ihren IP-Bereich sind aktuell keine Volltexte freigegeben.
Volltexte (frei zugänglich)
Es sind keine frei zugänglichen Volltexte in PuRe verfügbar
Ergänzendes Material (frei zugänglich)
Es sind keine frei zugänglichen Ergänzenden Materialien verfügbar
Zitation

Anders, J., Sangiorgio, P., Deligianni, X., Santini, F., Scheffler, K., & Boero, G. (2012). Integrated active tracking detector for MRI-guided interventions. Magnetic Resonance in Medicine, 67(1), 290-296. doi:10.1002/mrm.23112.


Zitierlink: https://hdl.handle.net/11858/00-001M-0000-0013-B85E-5
Zusammenfassung
We present a fully integrated detector suitable for active tracking of interventional devices in MR-guided interventions. The single-chip microsystem consists of a detection coil, a tuning capacitor, an intermediate frequency downconversion receiver, and a phase-locked-loop-based frequency synthesizer. Thanks to the integrated mixer, the chip output stage delivers an analog frequency-downconverted NMR signal in the frequency range from 0 to 200 kHz. The microchip, realized in a standard complementary metal oxide semiconductor technology, has a size of 1 × 2 × 0.74 mm3 and operates at a frequency of 63 MHz (i.e., in 1.5 T clinical scanners). Tests in a standard clinical scanner demonstrate the compatibility of the complementary metal oxide semiconductor microchip with clinical MRI systems. Using a solid sample of cis-polyisoprene having a size of 1 × 1.9 × 0.8 mm3 as internal signal source, the detector achieves a three-dimensional isotropic spatial resolution of 0.15 mm in a measuring time of 100 ms.