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A Prospective Single-center Cohort Study "Preoperative Identification of Sentinel Lymph Nodes Using Contrast-enhanced CT Lymphography in Breast Cancer Patients"

NCT04930692 · Status: UNKNOWN · Phase: NA · Type: INTERVENTIONAL · Enrollment: 31

Last updated 2022-09-06

No results posted yet for this study

Summary

The main hypothesis of this study is that contrast-enhanced CT lymphography can be used for preoperative visualization of sentinel lymph nodes in breast cancer patients. We assume that CT lymphography is a high-sensitivity and high-specificity method for sentinel lymph nodes' mapping in breast cancer patients. We also assume that positive predictive value and negative predictive value for identification of presence or absence of metastases in sentinel lymph nodes (SLN) will be high enough for preoperative diagnosis of SLN metastases in breast cancer patients. This study will use CT lymphography with periareolar injection of iopamidol and standard protocols of sentinel lymph nodes biopsy using intraoperative indocyanine green (ICG) fluorescence.

Conditions

  • Breast Neoplasms
  • Sentinel Lymph Node

Interventions

DIAGNOSTIC_TEST

Contrast-enhanced CT lymphography with the periareolar injection of iopamidol

Patients who meet the inclusion/exclusion criteria will undergo the CT lymphography with periaoreolar injection of a mixture of 4 mL iopamidol and 2 mL of 1% lidocaine hydrochloride. Computed tomographic images will be obtained 1, 3, 5, and 10 minutes after administration of the iopamidol. Following enhancement of the lymphatic duct, the first lymph node to show enhancement will be defined as the SLN. No later than 10 days after the CT lymphography patients will receive surgical treatment. During breast cancer surgery identification of the SLN using the ICG-fluorescence method with injection of 2 ml indocyanine green into the skin of the areola and the biopsy of identified SLN will be performed. The comparison of the results of CT lymphography and SLN biopsy will be administrated by the investigator.

Sponsors & Collaborators

  • Saint Petersburg State University, Russia

    lead OTHER

Principal Investigators

  • Ruslan Ahmedov, MD · Saint Petersburg State University Hospital

Study Design

Allocation
NA
Purpose
DIAGNOSTIC
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Max Age
75 Years
Sex
FEMALE
Healthy Volunteers
No

Timeline & Regulatory

Start
2022-10-01
Primary Completion
2023-03-01
Completion
2023-08-01

Countries

  • Russia

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04930692 on ClinicalTrials.gov