ISSN 1004-4140
CN 11-3017/P
| Citation: |
YUE L Y, XU Y H, JIANG G L, et al. The Value of Subtraction Computed Tomography in Evaluating the Enhancement Degree of Thoracic Lesions[J]. CT Theory and Applications, 2024, 34(5): 1-6. DOI: 10.15953/j.ctta.2024.246. (in Chinese).
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Objective: This study aimed to explore the clinical use of the chest computed tomography (CT) subtraction technique for evaluating the degree of chest mass enhancement. Methods: Patients with suspected chest masses who underwent contrast-enhanced chest CT were retrospectively enrolled. Contrast-enhanced CT used was performed using lung subtraction. Subtraction images were reconstructed, and color fusion images of the iodine distribution in the chest masses in the arterial and venous phases were obtained after subtraction. The net enhancement value (∆Hu) was measured and calculated. The enhancement degree were divided into mild (∆Hu < 20 HU), moderate (∆Hu 20~40 HU), and significant (∆Hu > 40 HU). The CT subtraction iodine maps were visually evaluated. The net perfusion value (∆Husub) of CT lung subtraction iodine maps in arterial phase and venous phase was measured. McNemar and kappa tests were used to evaluate the difference and consistency of ∆Hu and ∆Husub degrees, respectively. The paired t test was used to compare the differences between ∆Hu and ∆Husub. Results: This study included 34 patients (37 lesions). Data measured by the three observers were in good agreement. The ∆Hu and ∆Husub degrees had no significant difference, but had good consistency. No significant differences were observed between ∆Hu and ∆Husub in the arterial and venous phases. Conclusion: Lung subtraction CT imaging can simplify the steps of image reading and report writing by reducing the measurement and calculation times for lung lesions without increasing scanning time, which contributes to improving the efficiency of diagnosis.
| [1] |
NIU Y, LIU W, XIAN L, et al. Thoracic splenosis presenting as pulmonary space-occupying lesion[J]. BMC Surgery, 2018, 18(1): 119. DOI: 10.1186/s12893-018-0461-9.
|
| [2] |
SCORSETTI M, LEO F, TRAMA A, et al. Thymoma and thymic carcinomas[J]. Critical Reviews Oncology/Hematology, 2016, 99: 332-350. DOI: 10.1016/j.critrevonc.2016.01.012.
|
| [3] |
孙学术. 胸部增强CT检查在肺癌诊断及鉴别诊断中的应用研究进展[J]. 中国医疗器械信息, 2023, 29(2): 30-32. DOI: 10.3969/j.issn.1006-6586.2023.02.010.
SUN X S. Advances in the application of enhanced chest CT in the diagnosis and differential diagnosis of lungcancer[J]. China Medical Device Information, 2023, 29(2): 30-32. DOI: 10.3969/j.issn.1006-6586.2023.02.010.
|
| [4] |
GROB D, OOSTVEEN L J, JACOBS C, et al. Pulmonary nodule enhancement in subtraction CT and dual-energy CT: A comparison study[J]. European Journal of Radiology, 2021, 134: 109443. DOI: 10.1016/j.ejrad.2020.109443.
|
| [5] |
JEONG Y J, LEE K S, JEONG S Y, et al. Solitary pulmonary nodule: Characterization with combined wash-in and washout features at dynamic multi-detector row CT[J]. Radiology, 2005, 237(2): 675-683. DOI: 10.1148/radiol.2372041549.
|
| [6] |
燕子, 蔡华崧, 胡曼诗, 等. 肝脏CT动态增强扫描非刚性对位减影技术的质量评价[J]. 中华普通外科学文献(电子版), 2019, 13(6): 459-462. DOI: 10.3877/cma.j.issn.1674-0793.2019.06.009.
YAN Z, CAI H S, HU M S, et al. Quality evaluation of non-rigid subtraction technique in CT dynamic enhancement scanning of liver[J]. Chinese Archives of General Surgery (Electronic Edition) 2019, 13(6): 459-462. DOI: 10.3877/cma.j.issn.1674-0793.2019.06.009.
|
| [7] |
王晨思, 洪瑶, 方慧敏, 等. 基于自动管电流调制技术下不同螺距对颈部CTA辐射剂量及图像质量影响的研究[J]. CT理论与应用研究(中英文), 2024, 33(3): 309-315. DOI: 10.15953/j.ctta.2023.148.
WANG C S, HONG Y, FANG H M, et al. Based on the effect of different pitches on neck CTA radiation dose and image quality under automatic tube current modulation technology[J]. CT Theory and Applications, 2024, 33(3): 309-315. DOI: 10.15953/j.ctta.2023.148.
|
| [8] |
王倩, 彭文廷, 王蓉, 等. CT特征及增强定量分析预测肺磨玻璃结节浸润性的诊断价值[J]. 医学影像学杂志, 2024, 34(4): 33-37,48.
WANG Q, PENG W T, WANG R, et al. The value of CT features and quantitative analysis of contrast-enhanced CT scan in predicting the invasion of pulmonary ground-glass nodules[J]. Journal of Medical Imaging, 2024, 34(4): 33-37,48. (in Chinese).
|
| [9] |
陈超, 刘伟, 徐黎明, 等. 探究减影CT肺血管造影碘图在卵巢癌患者术前急性肺动脉栓塞诊断中的价值[J]. 肿瘤影像学, 2023, 32(2): 132-137. DOI: 10.19732/j.cnki.2096-6210.2023.02.005.
CHEN C, LIU W, XU L M, et al. To explore the value of subtraction iodine mapping CT pulmonary angiography in the diagnosis of acutepulmonary embolism in preoperative patients with ovarian cancer[J]. Oncoradiology, 2023, 32(2): 132-137. DOI: 10.19732/j.cnki.2096-6210.2023.02.005.
|
| [10] |
王嘉瑞, 丁向明. 螺旋CT增强扫描在肺癌患者淋巴结转移诊断的应用价值[J]. 影像研究与医学应用, 2024, 8(3): 133-135. DOI: 10.3969/j.issn.2096-3807.2024.03.043.
|
| [11] |
GROB D, OOSTVEEN L J, PROKOP M, et al. Imaging of pulmonary perfusion using subtraction CT angiography is feasible in clinical practice[J]. European Radiology, 2019, 29(3): 1408-1414. DOI: 10.1007/s00330-018-5740-4.
|
| [12] |
PELGRIM G J, VAN HAMERSVELT R W, WILLEMINK M J, et al. Accuracy of iodine quantification using dual energy CT in latest generation dual source and dual layer CT[J]. European Radiology, 2017, 27(9): 3904-3912. DOI: 10.1007/s00330-017-4752-9.
|
| [13] |
邢小明, 邓利华, 张春, 等. 640层CT肺减影成像联合肺动脉CTA诊断急性肺栓塞的初步探究[J]. 影像研究与医学应用, 2022, 6(5): 5-7. DOI: 10.3969/j.issn.2096-3807.2022.05.002.
XING X M, DENG L H, ZHANG C, et al. Preliminary study on 640-slice CT lung subtraction imaging combined with pulmonary CTA in the diagnosis of acute pulmonaryembolism[J]. Journal of Imaging Research and Medical Applications, 2022, 6(5): 5-7. DOI: 10.3969/j.issn.2096-3807.2022.05.002.
|
| [14] |
GROB D, SMIT E, PRINCE J, et al. Iodine maps from subtraction CT or dual-energy CT to detect pulmonary emboli with CT angiography: A multiple-observer study[J]. Radiology, 2019, 292(1): 197-205. DOI: 10.1148/radiol.2019182666.
|
| [15] |
YOSHIOKA K, TANAKA R, MURANAKA K, et al. Subtraction coronary CT angiography using second-generation 320-detector row CT[J]. The International Journal of Cardiovascular Imaging, 2015, 31(S1): 51-58. DOI: 10.1007/s10554-015-0630-1.
|
| [16] |
AOKI T, MURAKAMI S, KIM H, et al. Temporal subtraction method for lung nodule detection on successive thoracic CT soft-copy images[J]. Radiology, 2014, 271(1): 255-261. DOI: 10.1148/radiol.13130460.
|
| [17] |
王之龙, 朱旭, 高顺禹, 等. CT减影法评价肝细胞癌TACE后残余肿瘤活性的研究[J]. 介入放射学杂志, 2017, 26(1): 64-68. DOI: 10.3969/j.issn.1008-794X.2017.01.014.
WANG Z L, ZHU X, GAO S Y, et al. Application of CT subtraction technique in evaluating residual hepatocelluar carcinoma activity after transcatheter arterial chemoembolization[J]. Journal of Interventional Radiology, 2017, 26(1): 64-68. DOI: 10.3969/j.issn.1008-794X.2017.01.014.
|
| [18] |
朱乐, 雷子乔, 余建明, 等. 320排CT肺血管减影成像对急性肺栓塞诊断的初步临床研究[J]. 临床放射学杂志, 2017, 36(5): 728-732.
ZHU L, LEI Z Q, YU J M, et al. Preliminary Study on 320-Row CT Digital Subtraction Pulmonary Angiography in Acute Pulmonary Embolism[J]. Journal of Clinical Radiology, 2017, 36(5): 728-732. (in Chinese).
|
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