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The Evaluation Of Stereopsis On The Preoperative Surgical Planning For Colorectal Liver Metastases Surgery

Coopmans, Laurent (author)

Background <br/><br/>The surgical management of Hepato-Pancreato-Biliary (HPB) cancer poses significant challenges, primarily due to the complexity of patients. However, the role of stereopsis (depth perception) in visualizing three-dimensional (3D) anatomical models remains relatively underexplored. Integrating stereoscopic technologies with 3D...

master thesis 2024

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Towards Robust Object Detection in Unseen Catheterization Laboratories

Wang, Zipeng (author)

Deep-learning-based object detectors, while offering exceptional performance, are data-dependent and can suffer from generalization issues. In this thesis, we investigated deep neural networks for detecting people and medical instruments in the vision-based workflow analysis system inside Catheterization Laboratories (Cath Labs). The central...

master thesis 2024

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Design of new hand prosthesis with two modes: Realizing a proof-of-principle to validate feasibility of a hybrid hand prosthesis

Groeneveld, Iris (author)

Background<br/>An upper limb amputee currently has two choices for a body-powered prosthesis, a Voluntary Opening (VO) or Voluntary Closing (VC) hand prosthesis. Which type is best, depends on the task and the individual. Currently, there are no good options for VO and VC in one design. <br/>Objectives<br/>To design a proof-of-principle of a...

master thesis 2023

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Diastolic strain rate by cardiac MRI for predicting mortality in kidney transplant recipients

van der Kaaij, Daniek (author)

Introduction: High cardiovascular mortality primarily limits survival following kidney transplantation (KTx). The increased risk is intrinsically connected to cardiac structural and functional abnormalities. LV volumetric imaging measurements are used to quantify this, such as left ventricular ejection fraction (LVEF) and left ventricular end...

master thesis 2023

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Soft-tissue deformation and the potential of skin markers to facilitate accurate navigation in percutaneous renal ablation

Vogels, Marlein (author)

Purpose: In percutaneous renal ablation (PRA), reaching the target accurately is challenging due to target motion and limited real-time visualization of the target, requiring a suitable navigation strategy. In the context of this thesis research, skin markers are used in combination with an the Azurion C-arm system (Philips Healthcare, Best, The...

master thesis 2023

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Explainable artificial intelligence in nuclear medicine: Development and evaluation of a medical-based explainable artificial intelligence approach to predict progression free survival in patients with metastatic colorectal cancer using pre-treatment 18F-FDG PET

de Vries, Bart (author)

Purpose: 18F-fluorodeoxyglucose (18F-FDG) positron emission tomography (PET) is used in the diagnostic process and management of patients with metastatic colorectal cancer (mCRC). Also, 18F-FDG PET radiomic features have been found to hold prognostic value for clinical outcome in mCRC. However, no prognostic model has yet been developed to...

master thesis 2023

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Examining possible improvements to non-invasively measure mitochondrial oxygen tension in a clinical device

van der Graaf, Marijn (author)

Background and objectives: Mitochondria require oxygen to generate energy for essential cellular processes. An in-vivo non-invasive technique to monitor mitochondrial oxygen tension (mitoPO2) is the protoporphyrin IX-triplet state lifetime technique. Protoporphyrin IX (PpIX), one of the key components of heme, is naturally present in the...

master thesis 2022

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Preventing Anastomotic Leakage: An experimental approach to the redesign of a colorectal stent

van Kuik, Nout (author)

The large intestines, or colon, is the last part of the digestive tract before the rectum. Colorectal cancer is one of the main reasons that patients need a colon resection. A colon resection is a surgery in which the malignant part of the colon is removed. After removal of the tumor, the two ends of the colon need to be reattached, also called...

master thesis 2022

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A training phantom for a vesicovaginal fistula repair with the transvaginal approach

Voskamp, Tink (author)

Background: In Africa, many women suffer from vesicovaginal fistulas. In this study, a phantom model for a vesicovaginal fistula repair was developed that can be produced and used in Africa, to train medical doctors in the treatment of simple fistulas by the transvaginal approach.<br/>Method of production: The phantom consists out of 3D printed...

master thesis 2022

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The influence of laparoscopic handle design parameters and grasping strategy on the haptic perception of variable tissue stiffness

Lesmana Hardjo, Latifa (author)

Stiffness perception in laparoscopic surgery has an important role in achieving appropriate tissue manipulation. The need for haptic feedback to perceive tissue stiffness and the reduce in haptic feedback when using laparoscopic instruments suggest an inability to sufficiently experience stiffness perception during laparoscopic surgeries. Better...

master thesis 2022

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Automated Personnel Activities Observation in the Catheterization Laboratory

Jiang, Yingfeng (author)

This thesis presents a method for personnel activities observation, i.e., 3D human pose estimation and tracking, in a Catheterization Laboratory(Cath Lab). We mount five cameras from different angles in the Cath Lab, where surgeons and assistants are in similar clothes while doing surgery. Accurate 3D human pose estimation is the cornerstone of...

master thesis 2022

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The attitude of anesthesia assistants towards Artificial Intelligence-assisted patient monitoring in the Operating Room: Using the knowledge on their attitude and motivation to create an educational module that supports anesthesia assistants in their awareness and understanding of the impact of AI-assisted monitoring

Joosten, Karlijn (author)

Research on the possibilities to use Artificial Intelligence (AI) at the Operating Room (OR) is rising, although there is no implementation yet. AI-assisted monitoring could provide support to anesthesia assistants in their task of patient monitoring, by making predictions on the future occurrence of deviating events in the vital parameter...

master thesis 2022

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Impact of Variations in Patient and Beam Parameters on Proton Therapy using Pencil Beam Scanning technique

Paramasamy, Jasika (author)

Pencil beam scanning is a technique used in the proton therapy. This technique makes use of a thin beam which can irradiate each spot at millimetre precision. It is a very promising technique, especially for more radiation sensitive areas, e.g. lung carcinogenesis, as it can spare more healthy surrounding tissue compared to conventional...

master thesis 2022

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Surgical Animations in Anatomical Educaton: Development and feasability study of a case based augmented reality application

Ligthart, Laura (author)

Augmented reality (AR) promises to be a valuable tool for anatomical education since any given anatomical site can be studied dynamically in three dimensions (3D). Yet, it has not been used with case-based learning in medical education despite the latter's demonstrated benefits. <br/>This research, thus, investigates the potential benefit of 3D...

master thesis 2022

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Development of compliant joints using closed form pressure balancing

Sonneveld, Dave (author)

Compliant joints have significant advantages compared to rigid-body hinges due to a monolithic design and the absence of friction, which prevents effects like wear, backlash and stick-slip behaviour. However, the loading capability is often limited and the support stiffness generally decreases during rotation, caused by the use of solid leaf...

master thesis 2021

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Towards cardiovascular stents fabricated by stereolithography

van den Brekel, Thomas (author)

Currently, cardiovascular diseases are the leading cause of death worldwide, and a global ageing population ensures increasing numbers for the foreseeable future. Atherosclerosis, responsible for 80\% of cardiovascular deaths, is nowadays treated with stents, which scaffold the balloon-dilated artery and seals the dissection flaps. In 2016, the...

master thesis 2021

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Alternating Follow-the-Leader Medical Device with Pneumatically Actuated Shape Locks

Yikilmaz, Semih (author)

Developments in minimally invasive surgery such as natural orifice transluminal endoscopic surgery and single port laparoscopic surgery have pushed medical devices to be higher articulated and more dexterous. These surgery methods have proven to greatly decrease bleeding, scar tissue, hospital time, and cost. The procedures involve the...

master thesis 2021

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Designing a compliant hip-back support for an exoskeleton

Cratsborn, Tom (author)

This report is written for the thesis of my master Mechanical Engineering that was conducted at the department Precision and Microsystems Engineering of the Delft University of Technology. The goal of the project was to design a compliant hipback support of an exoskeleton while researching how to achieve desired directional compliance on this...

master thesis 2021

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Intratumoral holmium microsphere injection in pancreatic cancer

Willink, Ysbrand (author)

Introduction: Pancreatic adenocarcinoma holds one of the worst prognosis of all known malignancies. Local treatment options for patients with unresectable pancreatic cancer may increase tumor control and benefit patient survival. This study aimed to test the feasibility of a possible new treatment method utilizing intratumoral holmium...

master thesis 2021

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EEG correlates in the modulation of joint stiffness during posture control of the upper limb

Nijmeijer, Kirsten (author)

The ability to control and adapt joint stiffness is essential in human motor control. Both control loops on the spinal as well as cortical level are likely to play a role in this regulation. However, the cortical mechanisms involved with the online adaptive control of joint stiffness remain largely unresolved. This study aimed at identifying...

master thesis 2020