Related Experiment Video
Updated: Jul 7, 2026

10:48
PET and MRI Guided Irradiation of a Glioblastoma Rat Model Using a Micro-irradiator
Published on: December 28, 2017
Brain tumor imaging in clinical trials.
J W Henson1, S Ulmer, G J Harris
1Stephen E. and Catherine Pappas Brain Tumor Imaging Research Program, Department of Radiology, Massachusetts General Hospital, Boston, MA 02114, USA. henson@helix.mgh.harvard.edu
AJNR. American Journal of Neuroradiology
|February 15, 2008
Summary
Accurately measuring tumor size in clinical trials presents significant challenges for neuroradiologists. Understanding imaging considerations and response criteria is crucial for evaluating treatment efficacy.
Area of Science:
- Radiology
- Oncology
- Clinical Trials
Background:
- Accurate tumor size assessment is vital for clinical trial efficacy.
- Neuroradiologists face complexities in radiologic tumor evaluation.
Purpose of the Study:
- To review challenges in radiologic tumor size evaluation during clinical trials.
- To provide a comprehensive understanding of measurement and response assessment.
Main Methods:
- Review of radiologic measurement approaches.
- Analysis of tumor response criteria.
- Examination of lesion selection and technical imaging factors.
- Evaluation of measurement intervals and response confirmation.
- Assessment of imaging validity for efficacy.
Main Results:
- Substantial challenges exist in radiologic tumor size evaluation.
- A firm understanding of these issues is important for neuroradiologists.
Conclusions:
- Radiologic tumor size evaluation in clinical trials requires careful consideration of multiple factors.
- Standardized approaches and clear understanding of limitations are essential for accurate efficacy assessment.
More Related Videos
Related Concept Videos
Brain Imaging
Brain imaging technologies provide critical insights into both the structure and function of the human brain, enabling medical professionals and researchers to diagnose, study, and treat neurological disorders or psychiatric disorders more effectively.
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans), magnetic resonance imaging (MRI), functional magnetic resonance imaging (fMRI), and Transcranial Magnetic Stimulation (TMS).
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans), magnetic resonance imaging (MRI), functional magnetic resonance imaging (fMRI), and Transcranial Magnetic Stimulation (TMS).
Imaging Studies II: Positron Emission Tomography and Scintigraphy
Positron Emission Tomography (PET) is a medical imaging technique that provides crucial insights into the body's physiological functions at a molecular level. It is an indispensable resource for diagnosing, staging, and monitoring various illnesses, notably cancer, neurological disorders, and cardiovascular conditions.
Fundamental Principles of PET
Fundamental Principles of PET

