Related Experiment Video
Updated: Oct 26, 2025
17:13
Non-invasive Imaging of Acute Allograft Rejection after Rat Renal Transplantation Using 18F-FDG PET
Published on: April 28, 2013
17.2K
Assessing the Correlation Between 68Ga-PSMA-11 Renal PET Parameters and Renal Function Tests
Jan-Henning Schierz1, Ismet Sarikaya2, Ahmed N Albatineh3
1Department of Radiology, Municipal Hospital Dresden, Dresden, Germany.
Journal of Nuclear Medicine Technology
|July 31, 2021
Summary
Renal uptake of Gallium-68 prostate-specific membrane antigen (68Ga-PSMA) ligands correlates with kidney function in prostate cancer patients. Renal parenchymal volume measured on PET scans reliably reflects kidney function tests.
Area of Science:
- Nuclear Medicine
- Radiopharmaceuticals
- Oncology
Background:
- Gallium-68 prostate-specific membrane antigen (68Ga-PSMA) ligands are crucial for prostate cancer imaging.
- These ligands exhibit significant uptake in the kidneys, necessitating an understanding of their relationship with renal function.
Purpose of the Study:
- To investigate the correlation between renal 68Ga-PSMA PET parameters and standard renal function tests in prostate cancer patients.
- To assess the reliability of measuring renal parenchymal volume using PET imaging.
Main Methods:
- Retrospective analysis of 68Ga-PSMA-11 PET/CT images from prostate cancer patients.
- Quantification of renal PET parameters including SUVmax, SUVmean, volume, and Total Lesion Glycolysis (TLG_SUL).
- Calculation of renal function markers (GFR, creatinine) and correlation with PET-derived parameters.
Main Results:
- Significant positive correlation found between GFR and renal-to-liver/blood pool SUV ratios.
- Significant negative correlation observed between creatinine and renal-to-liver/blood pool SUV ratios.
- Renal parenchymal volume positively correlated with GFR and negatively with creatinine.
Conclusions:
- Renal 68Ga-PSMA uptake demonstrates a clear correlation with established renal function tests.
- PET-derived renal parenchymal volume measurement is a reliable indicator of kidney function.
Related Concept Videos
01:24Serum Studies: Renal Function Tests
154
Renal function tests are crucial for assessing kidney health, monitoring disease progression, and evaluating the kidneys' efficiency in waste elimination, fluid balance, and electrolyte regulation. These tests offer critical insights into kidney function, even though routine measurements may appear normal until there is a significant decline in the glomerular filtration rate or GFR. Typically, signs of kidney impairment only become evident when the GFR falls to about 50% of its normal level.
154
01:17Factors Affecting Renal Clearance: Renal Impairment
214
Renal dysfunction significantly impairs the renal clearance of drugs, leading to potential complications in drug therapy. Renal failure, which can be caused by various factors, poses a significant challenge in the elimination of drugs from the body.
One condition associated with renal failure is uremia. Uremia is characterized by impaired glomerular filtration and fluid accumulation in the body. This condition hinders the renal clearance of drugs, resulting in drug accumulation and potential...
One condition associated with renal failure is uremia. Uremia is characterized by impaired glomerular filtration and fluid accumulation in the body. This condition hinders the renal clearance of drugs, resulting in drug accumulation and potential...
214
01:18Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Excretion
97
In geriatric patients, renal physiology undergoes significant changes, including diminished renal blood flow and a lower glomerular filtration rate (GFR), leading to alterations in medication clearance. Drugs such as aminoglycoside antibiotics, lithium, and digoxin, which rely on glomerular filtration for removal from the body, particularly impact pharmacokinetics. These drugs tend to have slower clearance rates in older adults, necessitating careful dosage considerations.Evaluation of renal...
97
01:28Drug Dosing in Renal Diseases: Estimation of Glomerular Filtration Rate Based on Serum Creatinine Concentration
37
Glomerular filtration rate (GFR) can be estimated from serum creatinine using the modification of diet in renal disease (MDRD) formula or the chronic kidney disease–epidemiology collaboration (CKD–EPI) equation. Both methods are widely used in clinical practice to assess kidney function and guide treatment decisions.The MDRD equation does not require weight or height measurements and is normalized to the body surface area of 1.73 m², considered the average adult surface area.
37
01:22Effect of Hepatic Disease on Pharmacokinetics: Pathophysiologic Assessment and Liver Function Test
37
In clinical practice, the direct measurement of hepatic blood flow to evaluate liver function presents significant challenges due to the intricate and specialized nature of the necessary techniques. Consequently, healthcare professionals often rely on empirical estimates derived from thorough patient examinations and liver function tests to gauge liver health. Among the tools at their disposal, the Child–Pugh and MELD scoring systems stand out for their ability to categorize and assess...
37
01:13Radiological Investigation III: Pulmonary Angiogram and PET Scan
205
Radiological investigations are paramount in the diagnosis and management of various pulmonary diseases. Two essential investigations are the Pulmonary Angiogram and the Positron Emission Tomography (PET) Scan.
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
205