Detecting occlusion inside a ventricular catheter using photoacoustic imaging through skull

Behnoosh Tavakoli, Xiaoyu Guo, Russell H Taylor, Jin U. Kang, Emad Boctor

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Ventricular catheters are used to treat hydrocephalus by diverting the excess of the cerebrospinal fluid (CSF) to the reabsorption site so as to regulate the intracranial pressure. The failure rate of these shunts is extremely high due to the ingrown tissue that blocks the CSF flow. We have studied a method to image the occlusion inside the shunt through the skull. In this approach the pulsed laser light coupled to the optical fiber illuminate the occluding tissue inside the catheter and an external ultrasound transducer is applied to detect the generated photoacoustic signal. The feasibility of this method is investigated using a phantom made of ovis aries brain tissue and adult human skull. We were able to image the target inside the shunt located 20mm deep inside the brain through about 4mm thick skull bone. This study could lead to the development of a simple, safe and non-invasive device for percutaneous restoration of patency to occluded shunts. This will eliminate the need of the surgical replacement of the occluded catheters which expose the patients to risks including hemorrhage and brain injury.

Original languageEnglish (US)
Title of host publicationProgress in Biomedical Optics and Imaging - Proceedings of SPIE
PublisherSPIE
Volume8943
ISBN (Print)9780819498564
DOIs
StatePublished - 2014
EventPhotons Plus Ultrasound: Imaging and Sensing 2014 - San Francisco, CA, United States
Duration: Feb 2 2014Feb 5 2014

Other

OtherPhotons Plus Ultrasound: Imaging and Sensing 2014
CountryUnited States
CitySan Francisco, CA
Period2/2/142/5/14

Fingerprint

skull
Photoacoustic effect
Catheters
occlusion
shunts
Skull
Cerebrospinal fluid
Brain
Tissue
cerebrospinal fluid
Imaging techniques
Cerebrospinal Fluid
Domestic Sheep
brain
Optical Fibers
intracranial pressure
Intracranial Pressure
brain damage
Hydrocephalus
Transducers

Keywords

  • Hydrocephalus
  • Occlusion
  • Photoacoustic imaging
  • Ventricular catheter

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Radiology Nuclear Medicine and imaging

Cite this

Tavakoli, B., Guo, X., Taylor, R. H., Kang, J. U., & Boctor, E. (2014). Detecting occlusion inside a ventricular catheter using photoacoustic imaging through skull. In Progress in Biomedical Optics and Imaging - Proceedings of SPIE (Vol. 8943). [89434O] SPIE. https://doi.org/10.1117/12.2040805

Detecting occlusion inside a ventricular catheter using photoacoustic imaging through skull. / Tavakoli, Behnoosh; Guo, Xiaoyu; Taylor, Russell H; Kang, Jin U.; Boctor, Emad.

Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 8943 SPIE, 2014. 89434O.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Tavakoli, B, Guo, X, Taylor, RH, Kang, JU & Boctor, E 2014, Detecting occlusion inside a ventricular catheter using photoacoustic imaging through skull. in Progress in Biomedical Optics and Imaging - Proceedings of SPIE. vol. 8943, 89434O, SPIE, Photons Plus Ultrasound: Imaging and Sensing 2014, San Francisco, CA, United States, 2/2/14. https://doi.org/10.1117/12.2040805
Tavakoli B, Guo X, Taylor RH, Kang JU, Boctor E. Detecting occlusion inside a ventricular catheter using photoacoustic imaging through skull. In Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 8943. SPIE. 2014. 89434O https://doi.org/10.1117/12.2040805
Tavakoli, Behnoosh ; Guo, Xiaoyu ; Taylor, Russell H ; Kang, Jin U. ; Boctor, Emad. / Detecting occlusion inside a ventricular catheter using photoacoustic imaging through skull. Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 8943 SPIE, 2014.
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