Top-Ten Tips for Dual-Energy CT in MSK Radiology

2019 ◽  
Vol 23 (04) ◽  
pp. 392-404 ◽  
Author(s):  
Frances E. Walstra ◽  
Jonathan Hickle ◽  
Peter Duggan ◽  
Rashid Alsharhan ◽  
Nicolas Murray ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Dual Energy ◽  
Lesion Detection ◽  
Future Application ◽  
Dual Energy Ct ◽  
Ct Arthrography ◽  
Musculoskeletal Pathology ◽  
Conventional Ct ◽  
Clinical Potential ◽  
Collagen Analysis

Dual-energy computed tomography (DECT) has the potential to detect musculoskeletal pathology with greater sensitivity than conventional CT alone at no additional radiation dose to the patient. It therefore has the potential to reduce the need for further diagnostic imaging or procedures (e.g., joint aspirations in the case of gout or magnetic resonance imaging to confirm undisplaced fractures).DECT is a well-established technique for the detection of gout arthropathy. Multiple newer applications have shown clinical potential including bone marrow edema detection and metal artifact reduction. Collagen analysis, bone marrow lesion detection, and iodine mapping in CT arthrography are areas of possible future application and development.This article outlines 10 tips on the use of DECT imaging of the musculoskeletal system, explaining the technique and indications with practical suggestions to help guide the radiologist.

Incremental diagnostic value of color-coded virtual non-calcium dual-energy CT for the assessment of traumatic bone marrow edema of the scaphoid

2021 ◽  
Author(s):  
Vitali Koch ◽  
Felix Christoph Müller ◽  
Kasper Gosvig ◽  
Moritz H. Albrecht ◽  
Ibrahim Yel ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Bone Marrow Edema ◽  
Diagnostic Value ◽  
Dual Energy ◽  
Dual Energy Ct ◽  
Marrow Edema

Detection of different degree traumatic vertebral bone marrow oedema by virtual non-calcium technique of dual-source dual-energy CT

2020 ◽  
Vol 75 (2) ◽  
pp. 156.e11-156.e19
Author(s):  
Y. Wang ◽  
Y. Chen ◽  
H. Zheng ◽  
X. Huang ◽  
C. Shan ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Dual Energy ◽  
Bone Marrow Oedema ◽  
Dual Energy Ct ◽  
Vertebral Bone ◽  
Dual Source ◽  
Vertebral Bone Marrow

scholarly journals Bone Marrow Edema in Vertebral Compression Fractures: Detection with Dual-Energy CT

Radiology ◽  
2013 ◽  
Vol 269 (2) ◽  
pp. 525-533 ◽  
Author(s):  
Chien-Kuo Wang ◽  
Jen-Ming Tsai ◽  
Ming-Tsung Chuang ◽  
Min-Tsung Wang ◽  
Kuo-Yuan Huang ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Bone Marrow Edema ◽  
Dual Energy ◽  
Dual Energy Ct ◽  
Vertebral Compression Fractures ◽  
Compression Fractures ◽  
Marrow Edema

Clinical Utility of Dual-Energy CT Analysis of Bone Marrow Edema in Acute Wrist Fractures

2018 ◽  
Vol 210 (4) ◽  
pp. 842-847 ◽  
Author(s):  
Ismail T. Ali ◽  
William D. Wong ◽  
Teresa Liang ◽  
Faisal Khosa ◽  
Memoona Mian ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Clinical Utility ◽  
Bone Marrow Edema ◽  
Dual Energy ◽  
Dual Energy Ct ◽  
Wrist Fractures ◽  
Ct Analysis ◽  
Marrow Edema

scholarly journals Optimising dual-energy CT scan parameters for virtual non-calcium imaging of the bone marrow: a phantom study

2019 ◽  
Vol 3 (1) ◽  
Author(s):  
Felix C. Müller ◽  
Henrik Børgesen ◽  
Kasper Gosvig ◽  
Anders Rodell ◽  
Christian Booz ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Dual Energy ◽  
Image Noise ◽  
Dual Energy Ct ◽  
Tube Voltage ◽  
Mean Error ◽  
Rotation Time ◽  
Spectral Separation ◽  
Reconstruction Kernel ◽  
Tin Filter

Abstract Background We investigated the influence of dose, spectral separation, pitch, rotation time, and reconstruction kernel on accuracy and image noise of virtual non-calcium images using a bone marrow phantom. Methods The phantom was developed at our institution and scanned using a third-generation dual-source dual-energy CT scanner at five different spectral separations by varying the tube-voltage combinations (70 kV/Sn150 kV, 80 kV/Sn150 kV, 90 kV/Sn150 kV, and 100 kV/Sn150 kV, all with 0.6-mm tin filter [Sn]; 80 kV/140 kV without tin filter) at six different doses (volume computed tomography dose index from 1 to 80 mGy). In separate experiments, rotation times, pitch, and reconstruction kernels were varied at a constant dose and tube voltage. Accuracy was determined by measuring the mean error between virtual non-calcium values in the fluid within and outside of the bone. Image noise was defined as the standard deviation of virtual non-calcium values. Results Spectral separation, dose, rotation time, or pitch did not significantly correlate (p > 0.083) with mean error. Increased spectral separation (rs-0.96, p < 0.001) and increased dose (rs-0.98, p < 0.001) correlated significantly with decreased image noise. Increasing sharpness of the reconstruction kernel correlated with mean error (rs 0.83, p = 0.015) and image noise (rs 1.0, p < 0.001). Conclusions Increased dose and increased spectral separation significantly lowered image noise in virtual non-calcium images but did not affect the accuracy. Virtual non-calcium reconstructions with similar accuracy and image noise could be achieved at a lower tube-voltage difference by increasing the dose.

Bone marrow edema in sacroiliitis: detection with dual-energy CT

2020 ◽  
Vol 30 (6) ◽  
pp. 3393-3400 ◽  
Author(s):  
Min Chen ◽  
Nele Herregods ◽  
Jacob L. Jaremko ◽  
Philippe Carron ◽  
Dirk Elewaut ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Bone Marrow Edema ◽  
Dual Energy ◽  
Dual Energy Ct ◽  
Marrow Edema
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