Optical Coherence Tomography

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Radiation Accuracy Morbidity Invasive. OCT. Nil. 10um. Nil. No. Ultrasound. Nil. 1-2mm. Nil. No. CT. Yes. 1-2mm. Minimal Low Grade. MRI. Nil.

Optical Coherence Tomography Tony O’Connor, Ivan J Keogh.

Academic Department of Oto-Rhino-Laryngology, NUIG.

Optical Coherence Tomography? 

Biophotonics



OCT



Ultrasound



Low coherence Infra Red Light

Optical Coherence Tomography 

Imaging.



Near-Cellular level (10um).



Non-Invasive.



Emerging Technology.

- Astronomy

- Metrology - Quantum Mechanics - Plasma Physics

Current Imaging.

Future Imaging.



New Imaging Techniques.



Whole body Screening.



Non-Invasive.



Painless.



No Radiation.



Real-Time.

Advantages of OCT. 

Living Tissue.



Large Surface Area.



Optical Biopsy.



Target Therapy.

Histopathology Limitations 

Tissue shrinkage.



Distortion.



Fixation.



Staining.

Radiation Accuracy

Morbidity Invasive

OCT

Nil

10um

Nil

No

Ultrasound

Nil

1-2mm

Nil

No

CT

Yes

1-2mm

Minimal

Low Grade

MRI

Nil