Early Diagnosis of Therapy-associated Cardiotoxicity Basing on PET/CT in Lymphoma

• Conditions: Positron-Emission Tomography

• Registration Number: NCT05411250
• Lead Sponsor: Peking University Cancer Hospital & Institute

Brief Summary

To explore the value of 18F-fluorodeoxyglucose (FDG) PET/CT imaging in early diagnosis of treatment-related cardiotoxicity (TACT) of lymphoma using visual method and semi-quantitative method.

Detailed Description

First of all, the cardiac 18F-FDG uptake in patients with lymphoma will be observed by visual method: according to the uptake site, it will be divided into left ventricular uptake and biventricular uptake, and according to the degree of uptake, it will be divided into equal uptake (myocardial uptake is lower than cardiac blood pool uptake), moderate uptake (myocardial uptake is between cardiac blood pool uptake and liver uptake) and high uptake (myocardial uptake is higher than liver uptake). According to the uptake pattern, it can be divided into diffuse and segmental uptake.Then,using the region of interest method to mesure the value of myocardial uptake of 18F-FDG.The difference value of heart's SUVmax (Δ SUVmax- heart) and% Δ SUVmax- heart before and after chemotherapy or immunotherapy will be calculated. And SUVmax- heart / SUVmax- mediastinum ratio, SUVmax- heart / SUVmax- liver ratio and SUVmax- heart / SUVmax- background ratio (left gluteal muscle) after treatment. Taking the abnormality of ECG (early TACT) as the end point.

Study Timeline

• Status Verified: 2022-06
• Study Start: 2022-06-01
• Study First Submitted: 2022-06-06
• Study First Submitted QC: 2022-06-06
• Last Update Submitted: 2022-06-06
• Study First Posted: 2022-06-09
• Last Update Posted: 2022-06-09
• Primary Completion: 2023-05-31
• Study Completion: 2023-07-31

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 40

Inclusion Criteria

1. No previous history of heart disease.
2. normal echocardiography, ECG and laboratory tests (creatine kinase, myoglobin, troponin, brain natriuretic peptide) before treatment.

3.18F-FDG PET/CT examination before and after treatment

Exclusion Criteria

1.receiving radiotherapy and chemotherapy at the same time. 2.previous chest radiotherapy. 3. with severe hepatic or renal dysfunction.

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
SUVmax	150 days	the standardized uptake value

Secondary Outcome Measures

Name	Time	Method
SUVR	150 days	the ratio of the standardized uptake value for the heart to the normal tissue such as hepatic blood poor and gluteus