Abstract
Rationale and Objectives The study aimed to evaluate the usefulness of dual-energy computed tomography (DECT) before and after calcium subtraction in the diagnosis of spinal bone bruise. Materials and Methods Among the patients who visited our emergency department between January 2013 and July 2014 who underwent both spinal DECT and magnetic resonance imaging, 38 patients (men:women = 25:13; mean age: 55.6 years, range: 28–82) were included. The patients were divided into two groups, those with and without acute spinal compression fracture, based on magnetic resonance imaging findings. In the fracture group (n = 22), the ratio of Hounsfield unit (HU) values was calculated between the fracture level and the next normal inferior vertebra in the DECT before and after calcium subtraction. In the non-fracture group (n = 16), the ratios of HU values were calculated between two normal adjacent vertebrae. The mean HU ratios were compared between the two groups. Results The mean HU ratio was higher in the fracture group (calcium subtraction: before: 1.57 and 1.59; after: 1.74 and 1.76) than the non-fracture group (before: 1.07 and 1.08; after: 1.07 and 1.07) (P < 0.001). The mean HU ratio between before and after calcium subtraction images was different only in the fracture group (P < 0.05). There was no significant difference in the area under the curve, sensitivity, specificity, positive and negative predictive values, and accuracy (before: 0.846, 87.5%, 81.2%, 87.5%, 81.2%, 85%; after: 0.865, 91.7%, 81.2%, 88%, 86.7%, 87.5% in high energy) between the images before and after calcium subtraction. Conclusion The HU ratio between the fractured and next normal vertebra was diagnostic for spinal bone bruise on DECT images both before and after calcium subtraction.
| Original language | English |
|---|---|
| Pages (from-to) | 1376-1383 |
| Number of pages | 8 |
| Journal | Academic Radiology |
| Volume | 23 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 2016 Nov 1 |
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Keywords
- bone marrow
- compression
- contusion
- dual-energy CT
- Spinal fracture
ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging
Cite this
Spinal Bone Bruise : Can Computed Tomography (CT) Enable Accurate Diagnosis? / Na, Domin; Hong, Suk-Joo; Yoon, Min A.; Ahn, Kyung Sik; Kang, Chang Ho; Kim, Baek Hyun; Jang, Yeonggul.
In: Academic Radiology, Vol. 23, No. 11, 01.11.2016, p. 1376-1383.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Spinal Bone Bruise
T2 - Can Computed Tomography (CT) Enable Accurate Diagnosis?
AU - Na, Domin
AU - Hong, Suk-Joo
AU - Yoon, Min A.
AU - Ahn, Kyung Sik
AU - Kang, Chang Ho
AU - Kim, Baek Hyun
AU - Jang, Yeonggul
PY - 2016/11/1
Y1 - 2016/11/1
N2 - Rationale and Objectives The study aimed to evaluate the usefulness of dual-energy computed tomography (DECT) before and after calcium subtraction in the diagnosis of spinal bone bruise. Materials and Methods Among the patients who visited our emergency department between January 2013 and July 2014 who underwent both spinal DECT and magnetic resonance imaging, 38 patients (men:women = 25:13; mean age: 55.6 years, range: 28–82) were included. The patients were divided into two groups, those with and without acute spinal compression fracture, based on magnetic resonance imaging findings. In the fracture group (n = 22), the ratio of Hounsfield unit (HU) values was calculated between the fracture level and the next normal inferior vertebra in the DECT before and after calcium subtraction. In the non-fracture group (n = 16), the ratios of HU values were calculated between two normal adjacent vertebrae. The mean HU ratios were compared between the two groups. Results The mean HU ratio was higher in the fracture group (calcium subtraction: before: 1.57 and 1.59; after: 1.74 and 1.76) than the non-fracture group (before: 1.07 and 1.08; after: 1.07 and 1.07) (P < 0.001). The mean HU ratio between before and after calcium subtraction images was different only in the fracture group (P < 0.05). There was no significant difference in the area under the curve, sensitivity, specificity, positive and negative predictive values, and accuracy (before: 0.846, 87.5%, 81.2%, 87.5%, 81.2%, 85%; after: 0.865, 91.7%, 81.2%, 88%, 86.7%, 87.5% in high energy) between the images before and after calcium subtraction. Conclusion The HU ratio between the fractured and next normal vertebra was diagnostic for spinal bone bruise on DECT images both before and after calcium subtraction.
AB - Rationale and Objectives The study aimed to evaluate the usefulness of dual-energy computed tomography (DECT) before and after calcium subtraction in the diagnosis of spinal bone bruise. Materials and Methods Among the patients who visited our emergency department between January 2013 and July 2014 who underwent both spinal DECT and magnetic resonance imaging, 38 patients (men:women = 25:13; mean age: 55.6 years, range: 28–82) were included. The patients were divided into two groups, those with and without acute spinal compression fracture, based on magnetic resonance imaging findings. In the fracture group (n = 22), the ratio of Hounsfield unit (HU) values was calculated between the fracture level and the next normal inferior vertebra in the DECT before and after calcium subtraction. In the non-fracture group (n = 16), the ratios of HU values were calculated between two normal adjacent vertebrae. The mean HU ratios were compared between the two groups. Results The mean HU ratio was higher in the fracture group (calcium subtraction: before: 1.57 and 1.59; after: 1.74 and 1.76) than the non-fracture group (before: 1.07 and 1.08; after: 1.07 and 1.07) (P < 0.001). The mean HU ratio between before and after calcium subtraction images was different only in the fracture group (P < 0.05). There was no significant difference in the area under the curve, sensitivity, specificity, positive and negative predictive values, and accuracy (before: 0.846, 87.5%, 81.2%, 87.5%, 81.2%, 85%; after: 0.865, 91.7%, 81.2%, 88%, 86.7%, 87.5% in high energy) between the images before and after calcium subtraction. Conclusion The HU ratio between the fractured and next normal vertebra was diagnostic for spinal bone bruise on DECT images both before and after calcium subtraction.
KW - bone marrow
KW - compression
KW - contusion
KW - dual-energy CT
KW - Spinal fracture
UR - http://www.scopus.com/inward/record.url?scp=84994071422&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84994071422&partnerID=8YFLogxK
U2 - 10.1016/j.acra.2016.06.006
DO - 10.1016/j.acra.2016.06.006
M3 - Article
C2 - 27432268
AN - SCOPUS:84994071422
VL - 23
SP - 1376
EP - 1383
JO - Academic Radiology
JF - Academic Radiology
SN - 1076-6332
IS - 11
ER -