Research Article
Bile Duct Segmentation Methods Under 3D Slicer Applied to ERCP: Advantages and Disadvantages
Abdelhadi Essamlali*,
Vincent Millot-Maysounabe,
Marion Chartier,
Grégoire Salin,
Aymeric Becq,
Lionel Arrivé,
Marine Duboc Camus,
Jérôme Szewczyk,
Isabelle Claude
Issue:
Volume 9, Issue 4, December 2023
Pages:
66-74
Received:
11 September 2023
Accepted:
26 September 2023
Published:
9 November 2023
Abstract: This article presents an evaluation of biliary tract segmentation methods used for 3D reconstruction, which may be very usefull in various critical interventions, such as endoscopic retrograde cholangiopancreatography (ERCP), using the 3D Slicer software. This article provides an assessment of biliary tract segmentation techniques employed for 3D reconstruction, which can prove highly valuable in diverse critical procedures like endoscopic retrograde cholangiopancreatography (ERCP) through the utilization of 3D Slicer software. Three different methods, namely thresholding, flood filling, and region growing, were assessed in terms of their advantages and disadvantages. The study involved 10 patient cases and employed quantitative indices and qualitative evaluation to assess the segmentations obtained by the different segmentation methods against ground truth. The results indicate that the thresholding method is almost manual and time-consuming, while the flood filling method is semi-automatic and also time-consuming. Although both methods improve segmentation quality, they are not reproducible. Therefore, an automatic method based on region growing was developed to reduce segmentation time, albeit at the expense of quality. These findings highlight the pros and cons of different conventional segmentation methods and underscore the need to explore alternative approaches, such as deep learning, to optimize biliary tract segmentation in the context of ERCP.
Abstract: This article presents an evaluation of biliary tract segmentation methods used for 3D reconstruction, which may be very usefull in various critical interventions, such as endoscopic retrograde cholangiopancreatography (ERCP), using the 3D Slicer software. This article provides an assessment of biliary tract segmentation techniques employed for 3D r...
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Research Article
Determinants of Neonatal Outcomes for Preterm Infants Admitted to the Neonatal Intensive Care Unit at Ndola Teaching Hospital in Ndola District, Zambia
Nsululu Hyascinth Mbulo,
Siwale Mwaba Chileshe,
Kwaleyela Namukolo Concepta
Issue:
Volume 9, Issue 4, December 2023
Pages:
75-84
Received:
28 September 2023
Accepted:
20 October 2023
Published:
6 December 2023
Abstract: Neonatal outcomes for preterm infants vary from region to region in the world. In the last few decades, there have been major improvements in neonatal outcomes of premature infants in the developed countries; but not so much in developing countries. In Zambia, the preterm birth rate is estimated to be 13% of all births, and each year there are 77, 600 preterm births of which 6,800 die due to preterm complications. Preterm birth complications are the leading cause of death among children under 5 years of age and many survivors face a lifetime of disability. This study was aimed at identifying determinants of neonatal outcomes for preterm infants admitted to the NICU at Ndola Teaching Hospital. The research design employed was the quantitative with an observational, panel longitudinal approach. Conducted from February, 2021 to June 2021. Study participants were selected using convenience sampling. The sample size was 173 but two were lost to follow-up, out of these, 108 were successfully discharged from hospital, eight survived with complications and 55 died within the neonatal period. Data were analysed using SPSS version 23 Software and presented in table forms. The determinants of neonatal outcomes were examined using, Chi-square test and multivariate multinomial logistic regression to control for confounders. Findings revealed that infants who were born by caesarean section had 54.93% chances of survival compared to those who underwent vaginal delivery. Infants nursed in incubators were at higher risk of dying and developing complications, compared to those who were not, with p-value <.0001. Infants with 4-10 Apgar scores were less likely (OR = 0.170 (95% CI = [0, 0.675]) and 0.053 (95% CI = [1.238, 0.0755]) to develop complications and less likely (OR = 0.053, (95% CI = [0.038, 0.19]) and (OR = 0.106, 95% CI = 0.017, 0.741]) to die within the neonatal period, than those with 0-3 Apgar score. Preterm infants with birth weights greater than 1,500 grams were less likely (OR = 0.209, 95%CI = [0.059, 0.741]) to die during the neonatal period compared to those weighing between 500 to 1500 grams. Service and health related factors such as failure to suction the infant at birth when needed, nursing infants in incubators, low birth weight and low Apgar score at one and five minutes were determinants of poor neonatal outcomes. In order to improve survival rates for preterm infants, interventions should be directed on the mentioned factors in their management.
Abstract: Neonatal outcomes for preterm infants vary from region to region in the world. In the last few decades, there have been major improvements in neonatal outcomes of premature infants in the developed countries; but not so much in developing countries. In Zambia, the preterm birth rate is estimated to be 13% of all births, and each year there are 77, ...
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