|Table of Contents|

The application of noise index in CT localization lung puncture biopsy

Journal Of Modern Oncology[ISSN:1672-4992/CN:61-1415/R]

Issue:
2022 01
Page:
117-120
Research Field:
Publishing date:

Info

Title:
The application of noise index in CT localization lung puncture biopsy
Author(s):
LIU Chenpeng; PAN Zhenyu; YAN Yuchang; LI Kun
Department of Radiology,Beijing Chaoyang Hospital,Capital Medical University,Beijing 100040,China.
Keywords:
noise index; puncture positioning; lung cancer; radiation dose
PACS:
R734.2
DOI:
10.3969/j.issn.1672-4992.2022.01.025
Abstract:
Objective:To explore the value of spiral CT noise index technique in lung CT guided puncture localization.Methods:Thirty patients were selected for CT-guided puncture biopsy.The first scan was performed with chest dose(60 kV,100 mAs,NI20) scan filtering and back projection reconstruction,followed by follow-up monitoring of puncture needle insertion process and followed by higher noise(NI40) and highest noise index(NI60).The volumetric CT dose index,dose length product and effective dose were recorded for each scan.Results:The radiation doses of the three noise index doses were reduced by 47% and 77% respectively.The image quality of the three groups can meet the diagnostic requirements of puncture biopsy monitoring needle.Conclusion:The application of noise index technique to low dose CT guided puncture biopsy localization can significantly reduce the radiation dose,which is worthy of clinical promotion.

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Last Update: 2021-12-02