Clinical value of spectral CT in diagnosis of negative gallstones and common bile duct stones
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| 024 | 7 | 0 | |a 10.1007/s00261-015-0387-y |2 doi |
| 035 | |a (NATIONALLICENCE)springer-10.1007/s00261-015-0387-y | ||
| 245 | 0 | 0 | |a Clinical value of spectral CT in diagnosis of negative gallstones and common bile duct stones |h [Elektronische Daten] |c [Huanguo Li, Dong He, Qun Lao, Xingcan Chen, Miao Liu, Bingxin Yin, Kaiyu Zhao, Rui Wang, Longxia Chen] |
| 520 | 3 | |a Objective: To investigate the clinical value of spectral CT in diagnosis of negative gallstones and common bile duct stones primarily. Methods: All patients diagnosed with negative biliary stones were analyzed and examined by spectral CT scanner retrospectively. Based on acquired raw imaging data, image series were reconstructed as described below: the optimal contrast-to-noise ratio monochromatic energy images, calcium- and fat- based material decomposition images and spectral curve images. All these imaging series were analyzed quantitatively and qualitatively. Results: The contrast between negative stones and adjacent bile was 6.87±5.48 HU on hybrid energy CT images and 47.30±24.05 HU on optimal monochromatic energy CT images. The mean concentration of calcium in bile and negative stones was 19.36±5.12 and 3.88±6.60mg/mL, and the fat in bile and negative stones was 998.48±11.79 and 1035.68±15.36mg/mL. Effective atomic number Z of negative stones (6.60±0.45) was lower than that of bile (7.65±0.13). The slopes of the spectral curves for negative stones were k 90-40KeV=1.43±0.63 and k 140-90KeV=0.19±0.08, and for bile, they were k 90-40KeV=-0.27±0.09 and k 140-90KeV=-0.04±0.01. The same stone showed different densities in different imaging groups. The positive rate of conventional CT images was lower than that of other imaging groups. Conclusion: Spectral CT has a high diagnostic value for negative gallstones or bile duct stones, and material decomposition CT images and spectral curves can make an accurate diagnosis. | |
| 540 | |a Springer Science+Business Media New York, 2015 | ||
| 690 | 7 | |a Spectral CT |2 nationallicence | |
| 690 | 7 | |a Diagnosis |2 nationallicence | |
| 690 | 7 | |a Negative gallstones |2 nationallicence | |
| 690 | 7 | |a Bile duct stones |2 nationallicence | |
| 700 | 1 | |a Li |D Huanguo |u The Department of Radiology, Hangzhou Children's Hospital, No. 195 Wenhui Rd, Xiacheng district, 310015, Hangzhou, China |4 aut | |
| 700 | 1 | |a He |D Dong |u The Department of Radiology, 117th Hospital of PLA, No. 14 Lingyin Rd, Xihu district, 310013, Hangzhou, China |4 aut | |
| 700 | 1 | |a Lao |D Qun |u The Department of Radiology, Hangzhou Children's Hospital, No. 195 Wenhui Rd, Xiacheng district, 310015, Hangzhou, China |4 aut | |
| 700 | 1 | |a Chen |D Xingcan |u The Department of Radiology, 117th Hospital of PLA, No. 14 Lingyin Rd, Xihu district, 310013, Hangzhou, China |4 aut | |
| 700 | 1 | |a Liu |D Miao |u The Department of Radiology, 117th Hospital of PLA, No. 14 Lingyin Rd, Xihu district, 310013, Hangzhou, China |4 aut | |
| 700 | 1 | |a Yin |D Bingxin |u The Department of Radiology, 117th Hospital of PLA, No. 14 Lingyin Rd, Xihu district, 310013, Hangzhou, China |4 aut | |
| 700 | 1 | |a Zhao |D Kaiyu |u The Department of Radiology, Hangzhou Children's Hospital, No. 195 Wenhui Rd, Xiacheng district, 310015, Hangzhou, China |4 aut | |
| 700 | 1 | |a Wang |D Rui |u The Department of Radiology, Hangzhou Children's Hospital, No. 195 Wenhui Rd, Xiacheng district, 310015, Hangzhou, China |4 aut | |
| 700 | 1 | |a Chen |D Longxia |u The Department of Neonatology, Children's Hospital of Fudan University, 201102, Shanghai, China |4 aut | |
| 773 | 0 | |t Abdominal Imaging |d Springer US; http://www.springer-ny.com |g 40/6(2015-08-01), 1587-1594 |x 0942-8925 |q 40:6<1587 |1 2015 |2 40 |o 261 | |
| 856 | 4 | 0 | |u https://doi.org/10.1007/s00261-015-0387-y |q text/html |z Onlinezugriff via DOI |
| 898 | |a BK010053 |b XK010053 |c XK010000 | ||
| 900 | 7 | |a Metadata rights reserved |b Springer special CC-BY-NC licence |2 nationallicence | |
| 908 | |D 1 |a research-article |2 jats | ||
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| 950 | |B NATIONALLICENCE |P 856 |E 40 |u https://doi.org/10.1007/s00261-015-0387-y |q text/html |z Onlinezugriff via DOI | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Li |D Huanguo |u The Department of Radiology, Hangzhou Children's Hospital, No. 195 Wenhui Rd, Xiacheng district, 310015, Hangzhou, China |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a He |D Dong |u The Department of Radiology, 117th Hospital of PLA, No. 14 Lingyin Rd, Xihu district, 310013, Hangzhou, China |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Lao |D Qun |u The Department of Radiology, Hangzhou Children's Hospital, No. 195 Wenhui Rd, Xiacheng district, 310015, Hangzhou, China |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Chen |D Xingcan |u The Department of Radiology, 117th Hospital of PLA, No. 14 Lingyin Rd, Xihu district, 310013, Hangzhou, China |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Liu |D Miao |u The Department of Radiology, 117th Hospital of PLA, No. 14 Lingyin Rd, Xihu district, 310013, Hangzhou, China |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Yin |D Bingxin |u The Department of Radiology, 117th Hospital of PLA, No. 14 Lingyin Rd, Xihu district, 310013, Hangzhou, China |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Zhao |D Kaiyu |u The Department of Radiology, Hangzhou Children's Hospital, No. 195 Wenhui Rd, Xiacheng district, 310015, Hangzhou, China |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Wang |D Rui |u The Department of Radiology, Hangzhou Children's Hospital, No. 195 Wenhui Rd, Xiacheng district, 310015, Hangzhou, China |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Chen |D Longxia |u The Department of Neonatology, Children's Hospital of Fudan University, 201102, Shanghai, China |4 aut | ||
| 950 | |B NATIONALLICENCE |P 773 |E 0- |t Abdominal Imaging |d Springer US; http://www.springer-ny.com |g 40/6(2015-08-01), 1587-1594 |x 0942-8925 |q 40:6<1587 |1 2015 |2 40 |o 261 | ||