OBJECTIVE: To evaluate whether multidetector CT with low-dose radiation (low-dose CT) of joints can be useful when evaluating fractures. METHODS: Our study included CT scans of 398 patients, 103 shoulder cases, 109 wrist cases, 98 pelvis cases and 88 ankle cases. There were 191 females and 207 males. The low-dose CTs were performed using identical voltage and parameters with the exception of decreased (half of standard dose) tube current. Low-dose and standard-dose images were compared with regards to objective image quality, subjective evaluation of image quality and diagnostic performance for the fractures. RESULTS: There was no significant difference of image noise between standard-dose CT and low-dose CT in every joint (p > 0.05). Each mean value of subjective score did not show significant difference according to the dosage of the CT scan. There were no statistically significant differences in the sensitivity (96-100%), specificity (95.2-100%) or accuracy (97.9-100%) between standard-dose CT and low-dose CT (p values, 0.1336-1.000). CONCLUSION: The evaluation of extremities for fractures using low-dose CT can reduce radiation exposure by about 50% compared with standard-dose CT without affecting image quality or diagnostic performance. Advances in knowledge: Low-dose CT of the extremities (shoulder, pelvis, ankle and wrist) can reduce radiation dose by about 50% compared with standard-dose CT and does not significantly affect image quality or diagnostic performance in fracture detection.
OBJECTIVE: To evaluate whether multidetector CT with low-dose radiation (low-dose CT) of joints can be useful when evaluating fractures. METHODS: Our study included CT scans of 398 patients, 103 shoulder cases, 109 wrist cases, 98 pelvis cases and 88 ankle cases. There were 191 females and 207 males. The low-dose CTs were performed using identical voltage and parameters with the exception of decreased (half of standard dose) tube current. Low-dose and standard-dose images were compared with regards to objective image quality, subjective evaluation of image quality and diagnostic performance for the fractures. RESULTS: There was no significant difference of image noise between standard-dose CT and low-dose CT in every joint (p > 0.05). Each mean value of subjective score did not show significant difference according to the dosage of the CT scan. There were no statistically significant differences in the sensitivity (96-100%), specificity (95.2-100%) or accuracy (97.9-100%) between standard-dose CT and low-dose CT (p values, 0.1336-1.000). CONCLUSION: The evaluation of extremities for fractures using low-dose CT can reduce radiation exposure by about 50% compared with standard-dose CT without affecting image quality or diagnostic performance. Advances in knowledge: Low-dose CT of the extremities (shoulder, pelvis, ankle and wrist) can reduce radiation dose by about 50% compared with standard-dose CT and does not significantly affect image quality or diagnostic performance in fracture detection.
Authors: Seong Jong Yun; Hyun Cheol Kim; Dal Mo Yang; Sang Won Kim; Sun Jung Rhee; Jong Soo Shin; Sung Eun Ahn Journal: J Comput Assist Tomogr Date: 2016 May-Jun Impact factor: 1.826
Authors: T H Mulkens; P Marchal; S Daineffe; R Salgado; P Bellinck; B te Rijdt; B Kegelaers; J-L Termote Journal: AJNR Am J Neuroradiol Date: 2007-09 Impact factor: 3.825
Authors: D Anitha; Kai Mei; Michael Dieckmeyer; Felix K Kopp; Nico Sollmann; Claus Zimmer; Jan S Kirschke; Peter B Noel; Thomas Baum; Karupppasamy Subburaj Journal: Clin Neuroradiol Date: 2018-08-21 Impact factor: 3.649
Authors: N Sollmann; K Mei; B J Schwaiger; A S Gersing; F K Kopp; R Bippus; C Maegerlein; C Zimmer; E J Rummeny; J S Kirschke; P B Noël; T Baum Journal: Osteoporos Int Date: 2018-08-24 Impact factor: 4.507
Authors: Zlatan Alagic; Robert Bujila; Anders Enocson; Subhash Srivastava; Seppo K Koskinen Journal: Skeletal Radiol Date: 2019-09-09 Impact factor: 2.199