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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT04514822
Other study ID # ZDWY.FZYX.006
Secondary ID
Status Recruiting
Phase N/A
First received
Last updated
Start date March 1, 2019
Est. completion date December 30, 2023

Study information

Verified date February 2020
Source Fifth Affiliated Hospital, Sun Yat-Sen University
Contact Hongjun Jin, Ph.D
Phone 0756-2526136
Email jinhj3@mail.sysu.edu.cn
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Currently, static scans are commonly used for Positron Emission Tomography/Computed Tomography (PET/CT) examination in the literature. Accordingly, functional images of 2-[18F]fluoro-2-deoxy-glucose (18F-FDG) Positron Emission Tomography/Computed Tomography (PET/CT) with dynamic scans can be more sensitive to detect metastatic lymph node, since the introduction of temporal dynamic variables would provide more imaging quantification than conventional static scans. The purpose of this study is to provide the dynamic 18F-FDG PET/CT imaging for esophageal squamous cell carcinoma (ESCC) patient to quantify the difference between malignant lymph nodes (MLN) and benign lymph nodes (BLN).


Description:

Esophageal cancer is one of the most aggressive malignancies in the world, which accounted for an estimated 572,034 new cases and 508,585 deaths in 2018 worldwide. The incidence and mortality of esophageal cancer is ranked first in China and esophageal squamous cell carcinoma (ESCC) is the main histological subtype of esophageal cancers in China. Correct preoperative evaluation of whether the tumor has reached any lymph nodes is important for management. Various methods have been used to detect primary and lymph node metastases in esophageal cancer patients, including computed tomography (CT), endoscopic examinations, and endoscopic ultrasonography (EUS). However, even such advanced imaging modalities do not always reliably identify lymph node metastasis prior to surgical resection and pathological examination. The appearance of lymph nodes with morphological imaging procedures is classified by their shape, size, density and, if applied, contrast enhancement. BLN usually tend to have a fatty hilum, an oval shape and frequently do not measure more than 1 cm in the short axis diameter. However, the use of size as the most important criterion for differentiation of benign and malignant lymph nodes has limitations: small metastases without an increase in lymph node size are frequently missed. Positron emission tomography (PET)/computed tomography (CT) is increasingly used as single "one stop shop" method, which the combination of morphological and functional imaging represents the optimal approach for lymph node staging and general staging. A radioactive tracer,2-[18F]fluoro-2-deoxy-glucose (18F-FDG) currently used is based on the increased glucose metabolism, which may be reported with semiquantitative standard uptake value (SUV). Routinely, 18F-FDG is intravenous injected and PET/CT scan is performed after 60 min. The static imaging in differentiation of inflammatory from MLN may be problematic. Because inflammatory lymph nodes goes along with an increase in glucose metabolism, and thus may manifest increased 18F-FDG uptake. It was reported that PET-CT sensitivity and specificity for the detection of loco-regional metastases were moderate, but sensitivity and specificity were reasonable for distant metastases. Many researchers found there is a correlation between the 18F-FDG uptake and time. In malignancy, the uptake of FDG uptake continues to increase for several hours after FDG injection whereas such prolonged period of FDG uptake is rare in inflammatory/infectious or normal tissues. Shum et al ever assessed clinical usefulness of dual-time FDG PET/CT in esophageal squamous cell carcinoma, which turned out the sensitivity of FDG PET-CT in detecting the primary ESCC with combination of early maximum standard uptake value (SUVmax) ≥2.5 or retention index (RI) ≥10% was 96.2%. However, for loco-regional lymph node detection, there was no significant difference using dual-time 18F-FDG PET/CT assessment. Dynamic 18F-FDG PET/CT allows quantitative assessment of lesion in vivo by using a Patlak model to obtain the influx constant (Ki), and the glucose metabolic rate (MRglu). The purpose of the study is to determine whether the dynamic 18F-FDG PET/CT imaging (0-60 min) add additional value in differentiation MLN from BLN.


Recruitment information / eligibility

Status Recruiting
Enrollment 40
Est. completion date December 30, 2023
Est. primary completion date December 30, 2022
Accepts healthy volunteers No
Gender All
Age group 18 Years to 85 Years
Eligibility Inclusion Criteria: ·Patients who were pathologically confirmed ESCC at Sun Yet-sen Fifth Affiliated Hospital. Exclusion Criteria: - diabetes mellitus - fasted glucose level = 11.0 mmol/L - breast feeding - pregnancy and clustrophobia.

Study Design


Related Conditions & MeSH terms


Intervention

Diagnostic Test:
Dynamic PET
After transmission CT scan for subsequent PET data attenuation correction, continual dynamic clinical PET scans were performed in a single bed position immediately after 18F-FDG intravenously injection (210 ± 30 MBq) in list mode for 60 minutes in supine position, dynamic 48 time frames PET/CT imaging was obtained.And then underwent whole body static PET scan.

Locations

Country Name City State
China The Fifth Affiliated Hospital, Sun Yat-sen University Zhuhai Guangdong

Sponsors (1)

Lead Sponsor Collaborator
Fifth Affiliated Hospital, Sun Yat-Sen University

Country where clinical trial is conducted

China, 

Outcome

Type Measure Description Time frame Safety issue
Other Sensitivity The sensitivity for each parameter in differentiating malignant and benign lymph nodes were evaluated 60 minutes
Other Specificity The specificity for each parameter in differentiating malignant and benign lymph nodes were evaluated 60 minutes
Other Accuracy The accuracy for each parameter in differentiating malignant and benign lymph nodes were evaluated 60 minutes
Primary Ki comparison between MLNs and BLNs Ki of each MLN and BLN were calculated and compared 60 minutes
Primary MRglu comparison between MLNs and BLNs MRglu of each MLN and BLN were calculated and compared 60 minutes
Primary SUVmax comparison between MLNs and BLNs SUVmax of each MLN and BLN were calculated and compared 60 minutes
Primary SUVmax 60/30 comparison between MLNs and BLNs SUVmax 60/30 of each MLN and BLN were calculated and compared 60 minutes
Secondary Ki comparison from PTs between N0 and non-N0 stage Ki of each primary tumor between N0 and non-N0 stagewere calculated and compared 60 minutes
Secondary MRglu comparison from PTs between N0 and non-N0 stage MRglu of each primary tumor between N0 and non-N0 stagewere calculated and comparedtumor were calculated. 60 minutes
Secondary SUVmax comparison from PTs between N0 and non-N0 stage SUVmax of each primary tumor between N0 and non-N0 stagewere calculated and comparedtumor were calculated. 60 minutes
Secondary SUVmax 60/30 comparison from PTs between N0 and non-N0 stage SUVmax 60/30 of each primary tumor between N0 and non-N0 stagewere calculated and compared 60 minutes
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