Relative Ectopic Kidney Function Quantification Using DMSA Tomoscintigraphy Modality
Joint Authors
Njeh, Ines
Chtourou, Kalil
BenHamida, Ahmed
Source
Journal of Healthcare Engineering
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-05-26
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
The ectopic renal function estimation based on a manual region of interest (ROI) extraction could be considered as time consuming.
It could also affect the clinical interpretation and thus deviate the therapeutic attitude.
For this purpose, we propose an advanced tool to evaluate such function through the dimercaptosuccinic acid (DMSA) kidney scintigraphy scans.
Methods.
The proposed study has been performed on one hundred patients (fifty cases with normal kidneys and fifty cases with ectopic kidneys).
We present our segmentation problems as several cost functions’ optimization, each containing two terms: (i) a distribution matching prior, which evaluates a global similarity between distributions, and (ii) a smoothness prior to avoid the occurrence of small, isolated regions in the solution.
Obtained following recent bound-relaxation results, the optima of the cost functions yield each kidney region in near real time.
The Dice Metric (DM), the Jaccard Index (JI), and the correlation parameter have been adopted as validation parameters in order to evaluate the segmentation results.
The obtained relative function of both kidneys has been then compared with that evaluated in clinical routine (planar projection) and then validated statistically by the Bland–Altman plots and the Interclass Correlation Coefficient (ICC).
Results.
Compared to the expert’s manual kidney segmentation, the obtained results have been judged to be acceptable for clinical use with high Mean Dice Metric (MDM) value and high Jaccard Index (JI).
The evaluated relative renal function has been different from those calculated by the projection planar method usually used in clinical routines.
Conclusion.
The proposed system could efficiently extract the renal region.
The relative function estimation could be considered as more accurate.
In fact, the background noise correction and the attenuation phenomenon, which could yield an error measure for renal ectopia, have been avoided.
Our clinical staff members have validated the results and have suggested using such tool in their clinical routines.
American Psychological Association (APA)
Njeh, Ines& Chtourou, Kalil& BenHamida, Ahmed. 2020. Relative Ectopic Kidney Function Quantification Using DMSA Tomoscintigraphy Modality. Journal of Healthcare Engineering،Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1186290
Modern Language Association (MLA)
Njeh, Ines…[et al.]. Relative Ectopic Kidney Function Quantification Using DMSA Tomoscintigraphy Modality. Journal of Healthcare Engineering No. 2020 (2020), pp.1-11.
https://search.emarefa.net/detail/BIM-1186290
American Medical Association (AMA)
Njeh, Ines& Chtourou, Kalil& BenHamida, Ahmed. Relative Ectopic Kidney Function Quantification Using DMSA Tomoscintigraphy Modality. Journal of Healthcare Engineering. 2020. Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1186290
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1186290