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Analysis on the accuracy of CT-guided radioactive I-125 seed implantation with 3D printing template assistance in the treatment of thoracic malignant tumors
- Source :
- Journal of Radiation Research
- Publication Year :
- 2021
- Publisher :
- Oxford University Press (OUP), 2021.
-
Abstract
- This article analyzes the accuracy of needle track and dose of a 3-dimensional printing template (3DPT) in the treatment of thoracic tumor with radioactive I-125 seed implantation (RISI). A total of 28 patients were included. The technical process included: (i) preoperative CT positioning, (ii) preoperative planning design, (iii) 3DPT design and printing, (iv) 3DPT alignment, (v) puncture and seed implantation. The errors of needle position and dosimetric parameters were analyzed. A total of 318 needles were used. The mean errors in needle depth, needle insertion point, needle tip and needle angle were 0.52 ± 0.48 cm, 3.4 ± 1.7 mm, 4.4 ± 2.9 mm and 2.8 ± 1.7°, respectively. The differences between actual needle insertion angle and needle depth and those designed in the preoperative were statistically significant (p 0.05). Some dosimetric parameters of preoperative plans such as V100, V200, CI and HI were not consistent with that of preoperative plans, and the difference was statistically significant (p 0.05). We conclude that for thoracic tumors, even under the guidance of 3DPT, there will be errors. The plan should be optimized in real time during the operation.
- Subjects :
- Adult
Male
Health, Toxicology and Mutagenesis
Brachytherapy
Radiography, Interventional
Oncology/Medicine
Iodine Radioisotopes
Young Adult
Humans
Medicine
Radiology, Nuclear Medicine and imaging
Needle position
Aged
Radiation
Preoperative planning
business.industry
thoracic tumor
Radiotherapy Planning, Computer-Assisted
radioactive seed implantation
Middle Aged
Thoracic Neoplasms
Seed Implantation
error
Thoracic Tumor
Needle track
Needles
3D-printing template
Printing, Three-Dimensional
AcademicSubjects/SCI00960
Female
Needle insertion
AcademicSubjects/MED00870
dos
Tomography, X-Ray Computed
Nuclear medicine
business
Subjects
Details
- ISSN :
- 13499157 and 04493060
- Volume :
- 62
- Database :
- OpenAIRE
- Journal :
- Journal of Radiation Research
- Accession number :
- edsair.doi.dedup.....5312b51cecdb563da43fb5970673cb97
- Full Text :
- https://doi.org/10.1093/jrr/rrab068