Clinical Research Directory

Deformable Tissue Modelling and Augmented Reality Based Guidance for Head and Neck Tumor Re-Resection Task

Head and neck cancers have one of the highest recurrence rates among solid malignancies, and recurrence is strongly correlated with overall survival. Reducing recurrence rates depends, in part, on the surgeon's ability to accurately re-resect areas of positive or close margins during surgery. Currently, margin status is communicated primarily through verbal descriptions between the surgeon and pathologist, which can be imprecise. This challenge is further compounded by the deformable nature of soft tissues, as once the specimen is resected, the shape and size of the specimen change, making it difficult to accurately map the specimen's margins back onto the surgical site. Emerging technologies -such as augmented reality (AR), 3D scanning, and advanced soft tissue modeling- offer promising solutions for improving surgical navigation and precision. Building on these advances, an AR-based surgical navigation system was developed specifically for head and neck tumor resections. The system uses a 3D scanner to generate virtual models of both the resected specimen and the patient's surgical site, as demonstrated in prior work. A soft tissue modeling algorithm is then applied to account for specimen shrinkage and deformation, enabling accurate tracking of positive tumor margins. This guidance information is visualized through an AR headset, which overlays the margin data directly onto the patient's surgical site, providing surgeons with real-time visual guidance during re-resection. In this study, the goal is to evaluate the benefits and usability of this novel navigation software, compared to the standard of care. By assessing surgeon performance and user experience in cadaveric tasks with and without the AR system to identify strengths, limitations, and opportunities for refinement of the system, ultimately advancing surgical precision and improving patient outcomes by reducing recurrence rates.

New Assessment System in Measuring Symptom Distress in Cancer Patients

This trial studies how well a new assessment system (MDASI or other MD Anderson-developed PRO instrument) works in measuring symptoms and the impact on quality of life in cancer patients. Development of a new assessment system may provide more information about the common symptoms that may occur in patients due to cancer and its treatment and how the symptoms impact quality of life.

RCT of QPS vs General Information Sheet

This trial studies how well information materials work in helping communication between physicians and participants with cancer that has spread to other places in the body and their caregivers. Approaches that encourage participants to actively participate and ask appropriate questions during their visit may be important to enhance their understanding of their illness and empower them to make important decisions regarding their medical care.

Patient and Physician Perspectives on Non-Alcoholic Fatty Liver Disease

This trial studies patient and physician perspectives on non-alcoholic fatty liver disease. Using questionnaires and interviews, this trial may help researchers understand physicians' knowledge about the diagnosis, prognosis, treatment and management of non-alcoholic fatty liver disease, as well as gain an in-depth understanding of Hispanic patients' perceptions about the disease and investigate how cultural factors may play a role in its diagnosis, treatment and management.