Browsing Radiotherapy and Imaging by title
Now showing items 293-312 of 1127
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Development of a new fusion-enhanced oncolytic immunotherapy platform based on herpes simplex virus type 1.
(BMJ PUBLISHING GROUP, 2019-08-10)BACKGROUND: Oncolytic viruses preferentially replicate in tumors as compared to normal tissue and promote immunogenic cell death and induction of host systemic anti-tumor immunity. HSV-1 was chosen for further development ... -
Development of a temperature-controlled phantom for magnetic resonance quality assurance of diffusion, dynamic, and relaxometry measurements.
(WILEY, 2016-06-01)PURPOSE: Diffusion-weighted (DW) and dynamic contrast-enhanced magnetic resonance imaging (MRI) are increasingly applied for the assessment of functional tissue biomarkers for diagnosis, lesion characterization, or for ... -
Development of methods to assess the predictive power of pre-therapy imaging for selective internal radiation therapy
(Institute of Cancer Research (University Of London), 2020-12-31)Pre-therapy Technetium-99m (99mTc)-MAA SPECT may be used to predict the 90Y absorbed dose in selective internal radiation therapy (SIRT), while post-therapy 90Y bremsstrahlung SPECT may be used to measure the delivered ... -
Development of Real-Time Motion-Including Dose Reconstruction on a Unity MR-Linac system
(Institute of Cancer Research (University Of London), 2024-03-12)The first part of my thesis is concerned with estimating the motion of organs and other critical anatomical structures during radiotherapy treatments. I use 2D cine images acquired during MR-Linac treatments and compare ... -
Diagnostic and Therapeutic Biomarkers in Glioblastoma: Current Status and Future Perspectives.
(HINDAWI LTD, 2017-01-01)Glioblastoma (GBM) is a primary neuroepithelial tumor of the central nervous system, characterized by an extremely aggressive clinical phenotype. Patients with GBM have a poor prognosis and only 3-5% of them survive for ... -
Diagnostic ultrasound probes: a typology and overview of technologies
(Walter de Gruyter GmbH, 2018-09-01)<jats:title>Abstract</jats:title> <jats:p>The routine clinical use of diagnostic ultrasound (US) has spread considerably worldwide in recent decades. This is due in large part to the availability of US probes ... -
Diagnostic Utility of Molecular and Imaging Biomarkers in Cytological Indeterminate Thyroid Nodules.
(2018-04)Indeterminate thyroid cytology (Bethesda III and IV) corresponds to follicular-patterned benign and malignant lesions, which are particularly difficult to differentiate on cytology alone. As ~25% of these nodules harbor ... -
Dicentric Dose Estimates for Patients Undergoing Radiotherapy in the RTGene Study to Assess Blood Dosimetric Models and the New Bayesian Method for Gradient Exposure.
(RADIATION RESEARCH SOC, 2018-09-20)The RTGene study was focused on the development and validation of new transcriptional biomarkers for prediction of individual radiotherapy patient responses to ionizing radiation. In parallel, for validation purposes, this ... -
Dichloroacetate induces autophagy in colorectal cancer cells and tumours.
(NATURE PUBLISHING GROUP, 2014-07-15)BACKGROUND: Dichloroacetate (DCA) has been found to have antitumour properties. METHODS: We investigated the cellular and metabolic responses to DCA treatment and recovery in human colorectal (HT29, HCT116 WT and HCT116 ... -
Differential and longitudinal immune gene patterns associated with reprogrammed microenvironment and viral mimicry in response to neoadjuvant radiotherapy in rectal cancer.
(BMJ PUBLISHING GROUP, 2021-03-01)BACKGROUND: Rectal cancers show a highly varied response to neoadjuvant radiotherapy/chemoradiation (RT/CRT) and the impact of the tumor immune microenvironment on this response is poorly understood. Current clinical tumor ... -
Differentiated thyroid cancer patients potentially benefitting from postoperative I-131 therapy: a review of the literature of the past decade.
(SPRINGER, 2019-10-15)BACKGROUND: Since the last major review of literature on the benefit of I-131 therapy, the continued debate on postoperative radioiodine treatment (RIT) in differentiated thyroid carcinoma (DTC) has led to a number of ... -
Diffusion model comparison identifies distinct tumor sub-regions and tracks treatment response.
(WILEY, 2020-09-01)PURPOSE: MRI biomarkers of tumor response to treatment are typically obtained from parameters derived from a model applied to pre-treatment and post-treatment data. However, as tumors are spatially and temporally heterogeneous, ... -
Diffusion-weighted (DW) MRI in lung cancers: ADC test-retest repeatability.
(SPRINGER, 2017-11-01)PURPOSE: To determine the test-retest repeatability of Apparent Diffusion Coefficient (ADC) measurements across institutions and MRI vendors, plus investigate the effect of post-processing methodology on measurement ... -
Diffusion-weighted Imaging as a Treatment Response Biomarker for Evaluating Bone Metastases in Prostate Cancer: A Pilot Study.
(RADIOLOGICAL SOC NORTH AMERICA, 2017-04-01)Purpose To determine the usefulness of whole-body diffusion-weighted imaging (DWI) to assess the response of bone metastases to treatment in patients with metastatic castration-resistant prostate cancer (mCRPC). Materials ... -
Diffusion-Weighted Magnetic Resonance Imaging (DW-MRI) of the normal bone marrow in children and effects of local and systemic cancer therapies
(Institute of Cancer Research (University Of London), 2021-01-31)Bone marrow, one of the largest organs in the body, is a highly proliferative tissue because of its dynamic function in providing the cellular elements of blood. In a paediatric population, the proportion of red marrow ... -
Diffusion-Weighted Magnetic Resonance Imaging in Ovarian Cancer: Exploiting Strengths and Understanding Limitations.
(MDPI, 2022-03-10)Detection, characterization, staging, and response assessment are key steps in the imaging pathway of ovarian cancer. The most common type, high grade serous ovarian cancer, often presents late, so that accurate disease ... -
Diffusion-weighted MRI for detecting prostate tumour in men at increased genetic risk.
(Elsevier BV, 2014-09-07)BACKGROUND: Diffusion-weighted (DW)-MRI is invaluable in detecting prostate cancer. We determined its sensitivity and specificity and established interobserver agreement for detecting tumour in men with a family history ... -
Diffusion-weighted MRI for imaging cell death after cytotoxic or apoptosis-inducing therapy.
(NATURE PUBLISHING GROUP, 2015-04-28)BACKGROUND: Non-invasive serial imaging is desirable to detect processes such as necrotic and apoptotic cell death in cancer patients undergoing treatment. This study investigated the use of diffusion-weighted (DW-) magnetic ... -
Diffusion-weighted MRI in Advanced Epithelial Ovarian Cancer: Apparent Diffusion Coefficient as a Response Marker.
(2019-11)Background Treatment of advanced epithelial ovarian cancer results in a relapse rate of 75%. Early markers of response would enable optimization of management and improved outcome in both primary and recurrent disease. ... -
Diffusion-weighted MRI to determine response and long-term clinical outcomes in muscle-invasive bladder cancer following neoadjuvant chemotherapy.
(FRONTIERS MEDIA SA, 2022-11-14)OBJECTIVE: This study aims to determine local treatment response and long-term survival outcomes in patients with localised muscle-invasive bladder cancer (MIBC) patients receiving neoadjuvant chemotherapy (NAC) using ...