Dynamical MCG mapping with an atomic vapor magnetometer.
Neurol Clin Neurophysiol
; 2004: 38, 2004 Nov 30.
Article
en En
| MEDLINE
| ID: mdl-16012670
ABSTRACT
We have developed a magnetometer based on magnetic resonance in cesium vapor optically pumped by resonant laser radiation, which has the sensitivity and bandwidth to record human magnetocardiograms. The device is operated as a first-order gradiometer in a weakly shielded environment and allows us to record 2-dimensional field maps by shifting the subject with respect to a single sensor and making time-sequential measurements. We discuss the magnetometer technique and its performance as well as obtained results, which include a comparison of MCG data recorded with our single channel optical magnetometer with SQUID measurements from a commercial multi-channel device as well as from SQUID reference data. The results obtained so far in the detection of cardiomagnetic signals using the optical magnetometer make us confident that the technique has a high potential to serve as an alternative to SQUID detection.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Mapeo del Potencial de Superficie Corporal
/
Gases
/
Cinetocardiografía
/
Magnetismo
Límite:
Humans
/
Male
Idioma:
En
Revista:
Neurol Clin Neurophysiol
Asunto de la revista:
NEUROLOGIA
Año:
2004
Tipo del documento:
Article
País de afiliación:
Suiza