TY - GEN
T1 - Switchable lateral resolution real-time MHz-OCT rectoscopy for enhanced colorectal disease diagnosis
AU - Burhan, Sazgar
AU - Schulte, Berenice
AU - Göb, Madita
AU - Singh, Awanish Pratap
AU - Mustafa, Bayan
AU - Lotz, Simon
AU - Draxinger, Wolfgang
AU - Lamminger, Philipp
AU - Saker, Yasmeine
AU - Eixmann, Tim
AU - Ahrens, Martin
AU - Heimke, Marvin
AU - Heinze, Tillmann
AU - Wedel, Thilo
AU - Rahlves, Maik
AU - Ellrichmann, Mark
AU - Huber, Robert
PY - 2025/3
Y1 - 2025/3
N2 - Endoscopic optical coherence tomography (OCT) offers in vivo live visualization of transmural structures with histological resolution, making it a valuable tool in medical imaging. In gastroenterology, OCT endoscopy is particularly advantageous for assessing rectal wall layers, providing superior axial and lateral resolution compared to conventional rectal endoscopic ultrasound. However, the large diameter and uneven colon surface present challenges for comprehensive imaging. Extending the OCT imaging range addresses this issue by enabling a thorough examination of the entire colon, facilitating the detection of surface polyps, tumors, and their infiltration depth. Once these regions of interest are identified, high-resolution imaging becomes essential for detailed evaluation. To meet these demands, this study integrates two different imaging modes, an extended-range mode, and a high-detail mode, within a rigid rectoscope. The extended-range mode enables visualization of deeper structures, while the high-detail mode enhances image quality for precise, contact-based assessments. The system allows seamless, real-time transitions between the modes using a 3.2MHz-OCT system and a fiber‑optic MEMS switch.
AB - Endoscopic optical coherence tomography (OCT) offers in vivo live visualization of transmural structures with histological resolution, making it a valuable tool in medical imaging. In gastroenterology, OCT endoscopy is particularly advantageous for assessing rectal wall layers, providing superior axial and lateral resolution compared to conventional rectal endoscopic ultrasound. However, the large diameter and uneven colon surface present challenges for comprehensive imaging. Extending the OCT imaging range addresses this issue by enabling a thorough examination of the entire colon, facilitating the detection of surface polyps, tumors, and their infiltration depth. Once these regions of interest are identified, high-resolution imaging becomes essential for detailed evaluation. To meet these demands, this study integrates two different imaging modes, an extended-range mode, and a high-detail mode, within a rigid rectoscope. The extended-range mode enables visualization of deeper structures, while the high-detail mode enhances image quality for precise, contact-based assessments. The system allows seamless, real-time transitions between the modes using a 3.2MHz-OCT system and a fiber‑optic MEMS switch.
U2 - 10.1117/12.3046222
DO - 10.1117/12.3046222
M3 - Conference contribution
VL - 13305
SP - 1330512
BT - Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXIX
A2 - Leitgeb, Rainer A.
A2 - Yasuno, Yoshiaki
PB - SPIE
ER -
