High speed miniature motorized endoscopic probe for optical frequency domain imaging.
Opt Express
; 20(22): 24132-8, 2012 Oct 22.
Article
em En
| MEDLINE
| ID: mdl-23187176
ABSTRACT
We present a miniature motorized endoscopic probe for Optical Coherence Tomography with an outer diameter of 1.65 mm and a rotation speed of 3,000-12,500 rpm. This is the smallest motorized high speed OCT probe to our knowledge. The probe has a motorized distal end which provides a significant advantage over proximally driven probes since it does not require a drive shaft to transfer the rotational torque to the distal end of the probe and functions without a fiber rotary junction. The probe has a focal Full Width at Half Maximum of 9.6 µm and a working distance of 0.47 mm. We analyzed the non uniform rotation distortion and found a location fluctuation of only 1.87° in repeated measurements of the same object. The probe was integrated in a high-speed Optical Frequency Domain Imaging setup at 1310 nm to acquire images from ex vivo pig lung tissue through the working channel of a human bronchoscope.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Diagnóstico por Imagem
/
Endoscopia
/
Fenômenos Ópticos
/
Miniaturização
Tipo de estudo:
Diagnostic_studies
Limite:
Humans
Idioma:
En
Ano de publicação:
2012
Tipo de documento:
Article