View clinical trials related to Liver Cancer.
Filter by:This study was designed in two phases: Phase I is designed to confirm that the surgeon is able to perform accurate liver surface registration including standard liver features used as landmarks during a scheduled laparoscopic liver ablation procedure and acquires a level of comfort with the procedure. The surface of the liver will be manually swabbed with the study tracked laparoscopic probe with landmarks noted during data collection. After registration of the liver is obtained, the registration points obtained during this procedure will be evaluated by the surgeon by moving the tracked laparoscopic probe over the liver surface and evaluating the location of the tracked laparoscopic probe displayed on the guidance system three dimensional (3D) image. The surgeon will accept or reject the registration accuracy. The hypothesis is that the surgeon will be able to successfully acquire liver surface registrations with a small learning curve for technique and will be able to proceed to Phase II of the study. Phase II contains the registration process included above but adds the additional process of tracking the ablation probe used to perform tumor ablation by attaching the Pathfinder Multi-Tool adaptor and collecting data showing the location of the ablation probe as tracked and displayed on the Pathfinder three dimensional (3D) image. The surgeon will use ultrasound (US) guidance to locate tumor location during the laparoscopic procedure. The images collected during this process will be recorded by Pathfinder.
Liver surgery should be considered an echo-guided procedure to guarantee conservative but radical resections. The investigators describe a further application of intraoperative ultrasonography (IOUS) for studying the biliary tree during liver surgery with no need for formal cholangiography.
This is a non-randomized, open-label, single-institution phase I/II therapeutic trial of bavituximab and sorafenib in patients with advanced hepatocellular carcinoma (HCC). This study will be activated at the UT Southwestern Medical Center, comprised of The Harold C. Simmons Comprehensive Cancer Center, UT Southwestern Hospitals-St. Paul and Parkland Memorial Hospital System. Advanced HCC is defined as disease that is not amenable to surgical resection or orthotopic liver transplantation or is metastatic in nature.
This study was designed in two phases: Phase I is designed to confirm that the surgeon is able to perform accurate liver surface registration including standard liver features used as landmarks during a scheduled laparoscopic liver ablation procedure and acquires a level of comfort with the procedure. The surface of the liver will be manually swabbed with the study tracked laparoscopic probe with landmarks noted during data collection. After registration of the liver is obtained, the registration points obtained during this procedure will be evaluated by the surgeon by moving the tracked laparoscopic probe over the liver surface and evaluating the location of the tracked laparoscopic probe displayed on the guidance system three dimensional (3D) image. The surgeon will accept or reject the registration accuracy. The hypothesis is that the surgeon will be able to successfully acquire liver surface registrations with a small learning curve for technique and will be able to proceed to Phase II of the study. Phase II contains the registration process included above but adds the additional process of tracking the ablation probe used to perform tumor ablation by attaching the Pathfinder Multi-Tool adaptor and collecting data showing the location of the ablation probe as tracked and displayed on the Pathfinder three dimensional (3D) image. The surgeon will use ultrasound (US) guidance to locate tumor location during the laparoscopic procedure. The images collected during this process will be recorded by Pathfinder.
This study was designed to confirm that the surgeon is able to perform surface registration of standard liver features used as landmarks during a scheduled laparoscopic liver procedure. Additionally, registrations will be obtained with full insufflation pressure and with half insufflation pressure during the laparoscopic procedure. Under the presence of both insufflation pressures, the surface of the liver will be manually swabbed with the study tracked laparoscopic probe with landmarks noted during data collection. After registration of the liver is obtained, the registration points obtained during this procedure will be evaluated by the surgeon by moving the tracked laparoscopic probe over the liver surface and evaluating the location of the tracked laparoscopic probe displayed on the guidance system 3D image. The surgeon will accept or reject the registration accuracy. Upon completion of the scheduled laparoscopic procedure, the subject will then undergo the open procedure scheduled for the surgical case. An open liver registration will be obtained with manual swabbing of the liver using the study tracked probe and will be accepted or rejected by the surgeon using the process described in the laparoscopic procedure. In the event that the disease is determined to be too great for surgical repair during the laparoscopic staging procedure, only minimally invasive liver surface data will be acquired and the patient will not be included in the overall study population.
Fluorodeoxyglucose (FDG) positron emission tomography (PET) is now widely used for cancer imaging purpose, notably for preoperative work-up. It aims at visualizing organs metabolism. In case of cancer, metabolism is, classically, increased and some hot spots are visible on PET images. Because of respiratory motion and because the liver is intrinsically FDG avid, some tumours (especially the smallest ones) can be occulted and missed by the clinician. The investigators developed a respiratory-gated PET method in order to reduce the motion issue. This protocol has been validated on lung pathologies. The investigators designed a study to investigate its effect on liver cancer (primary or metastasis) to check if it allows the detection of a higher number of tumour lesions. To that aim, patients who are planned to undergo a surgical intervention on the liver can be proposed to participate this study. After the standard PET acquisition (acquired in free-breathing), an additional 10 minutes respiratory-gated PET acquisition is performed without additional injection. After that, a breath-hold (~10s) CT is performed.
Positron Emission Tomography (PET) with fluorine-18 fluoromisonidazole (FMISO) has been used for several years as a non invasive imaging technique to study tumor hypoxia. Several experimental and clinical studies have indicated that FMISO uptake of tissues is correlated with tissue oxygen tension and that FMSO PET allows non-invasive differentiation between hypoxic and normoxic tumors. Currently, FMISO-PET represents the best characterized and validated noninvasive hypoxia imaging technique. Nevertheless, clinical studies have also shown the limitations of FMISO PET. Accumulation of FMISO in hypoxic tumors is relatively low, resulting in a low contrast between hypoxic tumors and surrounding normal tissues. In addition, imaging needs to be started relatively late after tracer injection (about 3 hours post-injection), when a significant percentage of the fluorine-18 label has already decayed and the count statistics of the PET images are relatively low. Because of these limitations, FMISO PET is still only used at a few research centers, despite high clinical interest in hypoxia imaging.
Researchers at the the University of Michigan are conducting a research project to assess how a course of radiation therapy changes the way blood flows through the liver. To be able to do this, the researchers will be using MRI (magnetic resonance imaging) scans completed before, during, and after radiation therapy. MRI's will be done on 4 or 5 occasions. On each occasion, you will be injected with a fluid called gadolinium (a contrast agent) before getting an MRI. This contrast agent makes it easier for the Researchers to see your organs in the scans, and causes any abnormal areas to become very bright on the MRI. This agent will be injected into a vein in your arm or leg. Each MRI scan will last approximately 45 minutes.
This protocol is a single arm phase II multi-center trial evaluating the efficacy of Stereotactic Body Radiation Therapy (SBRT) in patients with oligometastatic non-small cell lung cancer (NSCLC) with response or stable disease after 4 cycles of first-line chemotherapy. The core hypothesis tested is that SBRT after 4 cycles of first-line chemotherapy is feasible, safe, provides durable local control of treated lesions and improves time to progression compared to historical controls. Patients are eligible for enrollment if they have metastatic NSCLC with ≤5 lesions amenable to SBRT.
The goal of this clinical research study is to learn if the combination of AvastinTM (bevacizumab) and Tarceva (erlotinib hydrochloride) can help to control advanced liver cancer. The safety of this drug combination will also be studied.