Kidney Uptake at F-18 FDG PET/CT Studies and Renal Function Status

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Total Enrollment

97 participants

Study Classification

OBSERVATIONAL

Study Start Date

2024-03-01

Study Completion Date

2025-04-01

Brief Summary

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Searching for a possible correlation between renal uptake at F-18-FDG PET/CT and renal functional parameters in both normal subjects and patients with CKD.

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Detailed Description

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F-18-Fluoro-Deoxy-Glucose Positron Emission Tomography (F-18 FDG PET/CT) is a hybrid imaging modality that in the last few years has been gaining more attention, due to its ability for evaluation different conditions, both neoplastic or benign. In the urinary tract, FDG is filtered by the glomerulus and is not reabsorbed by the renal tubules. So, significant activity may be displayed in any part of the urinary tract. Chronic kidney disease is highly prevalent and associated with higher cardiovascular risk. CKD is diagnosed when an estimated glomerular filtration rate (EGFR) lower than 60 mL/min/1.73 m2 present for at least three months or by alteration in the renal structure\[3\]. The Kidney Disease: Improving Global Outcomes (KDIGO) CKD guidelines recommend use of the EGFR for determination of the disease because of its simplicity, cost-effectiveness, and accuracy in predicting renal function in standard conditions. The estimating equation for the assessment of EGFR in adults is the CKD Epidemiology Collaboration (CKD-EPI).

In some cases, it has been reported that the impairment of renal function doesn't significantly compromise the clearance of background activity of F-18-FDG. In contrast, other papers observed that CKD patients have a higher physiological tracer uptake in the liver and blood pool. Different studies investigated the ability of CKD in modification of the F-18-FDG uptake during a PET/CT scan have also been published with contradictory results.

Therefore, we search for the association between renal uptake at F-18-FDG PET/CT and renal functional parameters in both normal subjects and CKD patients.

Conditions

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Renal Uptake at F-18-FDG PET/CT

Study Design

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Observational Model Type

CASE_CONTROL

Study Time Perspective

PROSPECTIVE

Study Groups

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Chronic kidney diseased patiens

chronic kidney diseased patients

PET/CT

Intervention Type DEVICE

F-18 FDG PET/CT studies

Normal

normal subjects

PET/CT

Intervention Type DEVICE

F-18 FDG PET/CT studies

Interventions

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PET/CT

F-18 FDG PET/CT studies

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Adult patients undergoing PET/CT examination for oncologic or non-oncologic purposes.

Exclusion Criteria

* Patients underwent PET/CT examination with age under 18 years.
* Presence of pathological conditions affecting kidneys (e.g., cancers, inflammation, polycystic kidney disease)
* Inability to stay still for the duration of the scan.
* Claustrophobia.
* Patients with uncontrolled diabetics (blood glucose \>200 mg/dl immediately before PET/CT scan)
* Pregnant females.

Minimum Eligible Age

19 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes