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Bleb Height Assesment for Post-Trabeculectomy by Using Stereo Image
Fahanani A.F.a, Zakaria H.a, Prahasta A.b, Gustianty E.b, Rifada R.M.b, Chairini A.b
a Department of Biomedical Engineering, Institut Teknologi Bandung, Bandung, Indonesia
b Faculty of Medicine, Padjajaran University, Bandung, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© 2017 IEEE.Glaucoma is caused by improper absorption of intraocular fluid into bloodstream so it increase intraocular pressure (IOP) of the eye. In many cases of glaucoma, the drainage channel becomes clogged, so that intraocular fluid cannot drain properly. As a result, the fluid builds up and causes IOP to increase. The common surgery treatment for glaucoma is called trabeculectomy by removing part of the eye’s trabecular. After the surgery, a slightly lifted tissue due to passing fluid called bleb will appear. Bleb assesment is necessary to examinate the successful of surgery. One of the standard assesment known as Indiana Bleb Appearance Grading Scale (IBAGS) grade the bleb base on four parameters namely, bleb height, extend, vascularity and leakage. Among those four parameters, bleb height was strongly asscociated with a decrease in IOP but also very hard to assess especially only from a single bleb image. This work proposed an algorithm for bleb height assessment by using a stereo image to get a better depth perception. The proposed algorithm developed base on the disparity pixel of the stereo image using slit light followed by classification to match the IBAGS standard by using threshold method. The result showed an increase of Cohen’s kappa coefficient from 0.20 to 0.48 indicating better agreement between inter observer assessment.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]bleb height,gluacoma,Grading scale,Pixel disparities,trabeculetomy[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]bleb height,gluacoma,Indiana Bleb Appearance Grading Scale,pixel disparity,trabeculetomy[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.1109/ICICI-BME.2017.8537757[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]