ArticleJournal of interventional medicine2021
Value of low-dose and optimized-length computed tomography (CT) scan in CT-guided percutaneous transthoracic needle biopsy of pulmonary nodules.
Article in Journal of interventional medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Cutting doses, keeping diagnoses: outcomes of protocol optimization for CT-guided lung biopsies.La Radiologia medica · 2026Article
- Preoperative localization of pulmonary nodules using ultra-low-dose CT based on artificial intelligence iterative reconstruction.Quantitative imaging in medicine and surgery · 2026Article
- Diagnostic yield and complication rates of percutaneous transthoracic CT-guided coaxial needle biopsy in persistent pulmonary consolidation.Japanese journal of radiology · 2024Article
- Preoperative CT-guided localization of pulmonary nodules with low-dose radiation.Quantitative imaging in medicine and surgery · 2023Article
- CT-guided percutaneous transthoracic needle biopsy (PTNB): A thoracic surgeon's learning curve and experience summary.Thoracic cancer · 2023Article
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5 authors.
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Abstract
objectiveTo investigate the value of application of low-dose and optimized length CT scan on puncture results, complications and patients' radiation dosage during CT-guided percutaneous biopsy of pulmonary nodules (PTNB).
methodsA total of 231 patients with PTNB under CT guidance were collected. Low dose scanning utilized tube current of 20 mA as compared with 40 mA in conventional dosage. Optimized length in CT is defined as intentionally narrowing the range of CT scanning just to cover 25 mm (5 layers) around the target layer during needle adjustment. According to whether low-dose scans and optimized length scans techniques were utilized, patients were divided into three groups: conventional group (conventional sequence + no optimization), optimized length group (conventional sequence + optimized length), and low-dose optimized length group (low dose sequence + optimized length). The ED (effective dose), the DLP (dose length product), the average CTDIvol (Volume CT dose index), total milliampere second between subgroups were compared.
resultsCompared with the conventional group, ED, intraoperative guidance DLP, total milliseconds and operation time in the optimized length group were reduced by 18.2% (P=0.01), 37% (P=0.003), 17.5% (P=0.013) and 13.3% (P=0.021) respectively. Compared with the optimized length group, the ED was reduced by 87%, preoperative positioning, intraoperative guidance and postoperative review DLP were also reduced by 88%, total milliampere second was reduced by 79%, with an average CTDIvol was reduced by 86%, in the low-dose optimized length group (P<0.001 for all).
conclusionOptimizing the length during CT scanning can effectively reduce the intraoperative radiation dose and reduce the operation time compared with conventional plan; low-dose and optimized length CT scan can further reduce the total radiation dose compared with optimized length group with no differences on intraoperative complications, biopsy results and operation time.
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