|
|
|
| Application study of dual-energy scan in the detection of the kidney tumors |
| SUN Xianchang1, DAI Weina1, LIU Yang1, PENG Hongjuan2, and WANG Fenglin1 |
1.Department of Radiology, General Hospital of Armed Police Force, Beijing 100039, China;
2.Shandong Medical Imaging Research Institute, Jinan 250021, China |
|
|
|
|
Abstract Objective The dual-energy scans in arterial phase of enhancement CT were performed in renal tumors patients. The purpose of this study was to investigate the the feasibility of the low kilovoltage CT scan by comparing the effects of different tube voltages on the images quality.Methods 40 cases of patients with renal tumors were randomly selected to be research object. All of the patients were examined by the dual-energy scans in arterial phase of enhancement CT (Siemens SOMATOM Definition FLASH), and the higher and the low tube voltage was used with 140 kV and 100 kV respectively. Each patient could obtain three sets of images: the lower tube voltage (100 kV) images, the higher tube voltage images (140 kV) and fused images (120 kV). Image quality of three sets of images was compared and evaluated statistically by two blinded experienced CT diagnosis doctors according to the method of five points in the case of unknowning CT scan conditions. The scores of the three groups of images were compared respectively with the statistical method of Wilcoxon Signed Ranks Test, the differences between them were statistically significance when P<0.05.Results The image quality scores of 100 kV,120 kV and140kV were 46,41and126.The image quality of 100 kV and 120 kV are better than that of 140 kV, the image quality has statistically significant difference (P<0.05), and the image quality of 100 kV and 120 kV was no statistically significant difference (P>0.05).Conclusions Kidney enhanced CT scanning using lower tube voltage of 100 kV is feasible. The excellent image quality can meet the need of clinical diagnosis of renal tumors patients.
|
|
Received: 22 March 2016
|
|
|
|
|
|
| [1] |
Mulkens T H, Marchal P, Dainedds S, et al. Comparison of low-dose with standard-dose multidetector CT in cervical spine trauma [J].AJNR, 2007, 28: 1444-1450.
|
| [2] |
Lutz J, Jager V, Hempel M J, et al. Delineation of temporal bone anatomy: feasibility of low-dose 64-row CT in regard to image quality[J].Eur Radiol, 2007, 17: 2638-2645.
|
| [3] |
唐 坤,曹国全,李 瑞,等.低管电压腹部CT扫描对图像质量及辐射剂量影响的体模实验[J].中国医学影像技术,2012, 28(4):800-804.
|
| [4] |
Sebastian Leschka, Paul Stolzmann, Stephan Baumuller, et al. Performance of Dual-Energy CT with tin filter technology for the discrimination of renal cysts and enhancing masses[J]. Acad Radiol, 2010,17: 526-534.
|
| [5] |
Schindera S T, Diedrichsen L, M?ller H C, et al. Iterative recontruction algorithm for abdominal multidetector CT at different tube voltage: assessment of diagnostic accuracy, image quality, and radiation dose in a phantom study [J]. Radiology, 2011, 260: 454-462.
|
| [6] |
沈 进,阎 岚,韩 丹.100 kV管电压结合电流自动调节技术肺静脉成像的临床应用[J].中国医学科学院学报,2010,32(6): 704-708.
|
| [7] |
胡 奕,郭启勇.双源CT双能量扫描技术在腹部的应用[J].中国临床医学影像杂志,2011, 22 (2): 109-110.
|
| [8] |
张辉阳, 周智鹏,邱维加,等.64排螺旋CT轴扫扫描降低腹部CT检查辐射剂量的研究 [J]. 广西医科大学学报,2012, 29 (5): 705-707.
|
| [9] |
Signal-cinqualbre A B, Hennequin R, Abada H T, et al. Low-kilovoltage multi-detector row chest CT in adults: feasibility and effect on image quality and iodine dose[J]. Radiology, 2004, 231(1): 169-174.
|
| [10] |
胡茂清,叶维韬,梁长虹,等.管电压和碘对比剂浓度对腹部动态增强CT图像质量的影响[J].中华放射学杂志,2015,49(4): 273-278.
|
| [11] |
Tobiss P, Larissa R, Dieter R, et al. Image quality in a low radiation exposure protocal for retrospectively ECG-gated coronary CT angiography [J].AJR, 2009,192(4): 1045-1050.
|
| [12] |
暴 婧,吴巍珍,杜湘珂,等.计算机体层摄影检查中对比剂肾病的流行病学研究[J].中国血液净化, 2011, 10(8): 416-420.
|
| [1] |
. [J]. Med. J. Chin. Peop. Armed Poli. Forc., 2019, 30(9): 798-799. |
|
|
|
|
2016, Vol. 27 
