Marker systems with spaced apart surfaces or markers and methods of using the same

Marker systems with spaced apart surfaces or markers and methods of using the same

A marker system includes a structure having a first surface and a second surface, a first marker located on the first surface, and a second marker located on the second surface, wherein the first marker and the second marker are arranged so that they face approximately a same direction, and so that...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: JEUNG ANDREW G, MOSTAFAVI HASSAN
Format: Patent
Sprache:eng
Schlagworte:
DIAGNOSIS
ELECTROTHERAPY
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MAGNETOTHERAPY
MEDICAL OR VETERINARY SCIENCE
RADIATION THERAPY
SURGERY
ULTRASOUND THERAPY
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Beschreibung
Zusammenfassung:A marker system includes a structure having a first surface and a second surface, a first marker located on the first surface, and a second marker located on the second surface, wherein the first marker and the second marker are arranged so that they face approximately a same direction, and so that they can be simultaneously viewed by an optical device, and wherein a first distance between the first marker and the optical device is different from a second distance between the second marker and the optical device when the first and the second markers are simultaneously viewed by the optical device.