|
|
||||||||
1
Cardiovascular Division/Cardiac MRI, Beth Israel Deaconess Medical Center, 330
Brookline Ave., Boston, MA 02215.
2
Present address: Department of Diagnostic Radiology, Technical University of
Aachen, Pauwelsstr. 30, 52057 Aachen, Germany.
3
Philips Medical Systems, P.O. 10000, 5680 Best, DA, The Netherlands.
OBJECTIVE. The aim of this study was to investigate diffusion-weighted MR imaging for differentiation of benign fracture edema and tumor infiltration with and without accompanying fracture.
SUBJECTS AND METHODS. In 10 volunteers, diffusion-weighted
spin-echo, fat-suppressed spin-echo, and stimulated-echo sequences were
optimized on a clinical 1.5-T scanner. In 34 patients, MR imaging with and
without diffusion-sensitizing gradients (b = 598 sec/mm2 in
spin-echo and fat-suppressed spin-echo, b = 360 sec/mm2 in
stimulated-echo) was performed. Thirty-five lesions were analyzed, with 18
caused by acute (
10 days old) osteoporotic or traumatic fractures and 17
caused by untreated malignant vertebral infiltration including nine fractures.
Signal attenuation in diffusion-weighted images and contrast-to-noise ratio
were calculated. The diffusion-weighted images were analyzed by two
radiologists.
RESULTS. Images from three of 34 patients were excluded because of motion artifact. In osteoporotic and traumatic fractures, a strong signal attenuation of bone marrow edema was seen. In contrast to this, malignant-tumor infiltration caused only minor signal attenuation (p < 0.05), independent of accompanying pathologic fracture. All sequences showed identical changes of signal intensities. In four patients, initial diagnosis was changed by the findings in the diffusion-weighted images.
CONCLUSION. Diffusion-weighted spin-echo, fat-suppressed spin-echo, and stimulated-echo sequences are equally suitable for imaging of the spine. Calculation of signal attenuation and observation of signal characteristics allowed differentiation of benign fracture edema and tumor infiltration and provided excellent distinction between benign and malignant vertebral fractures in our series.
![]()
CiteULike
Complore
Connotea
Del.icio.us
Digg
Reddit
Technorati What's this?
This article has been cited by other articles:
![]() |
A. Srinivasan, R. Dvorak, K. Perni, S. Rohrer, and S.K. Mukherji Differentiation of Benign and Malignant Pathology in the Head and Neck Using 3T Apparent Diffusion Coefficient Values: Early Experience AJNR Am. J. Neuroradiol., January 1, 2008; 29(1): 40 - 44. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. Y. Oner, L. Aggunlu, S. Akpek, T. Tali, and A. Celik Diffusion-Weighted Imaging of the Appendicular Skeleton with a Non Carr-Purcell-Meiboom-Gill Single-Shot Fast Spin-Echo Sequence Am. J. Roentgenol., December 1, 2007; 189(6): 1494 - 1501. [Abstract] [Full Text] [PDF] |
||||
![]() |
A.J. Nemeth, J.W. Henson, M.E. Mullins, R.G. Gonzalez, and P.W. Schaefer Improved Detection of Skull Metastasis with Diffusion-Weighted MR Imaging AJNR Am. J. Neuroradiol., June 1, 2007; 28(6): 1088 - 1092. [Abstract] [Full Text] [PDF] |
||||
![]() |
D.-M. Koh and D. J. Collins Diffusion-Weighted MRI in the Body: Applications and Challenges in Oncology Am. J. Roentgenol., June 1, 2007; 188(6): 1622 - 1635. [Abstract] [Full Text] [PDF] |
||||
![]() |
A.Y. Oner, T. Tali, F. Celikyay, A. Celik, and P. Le Roux Diffusion-Weighted Imaging of the Spine with a Non-Carr-Purcell-Meiboom-Gill Single-Shot Fast Spin-Echo Sequence: Initial Experience AJNR Am. J. Neuroradiol., March 1, 2007; 28(3): 575 - 580. [Abstract] [Full Text] [PDF] |
||||
![]() |
J Teh, A Imam, and C Watts Imaging of back pain Imaging, December 1, 2005; 17(3): 171 - 207. [Abstract] [Full Text] [PDF] |
||||
![]() |
G A Clines and T A Guise Hypercalcaemia of malignancy and basic research on mechanisms responsible for osteolytic and osteoblastic metastasis to bone Endocr. Relat. Cancer, September 1, 2005; 12(3): 549 - 583. [Abstract] [Full Text] [PDF] |
||||
![]() |
T. Hamaoka, J. E. Madewell, D. A. Podoloff, G. N. Hortobagyi, and N. T. Ueno Bone Imaging in Metastatic Breast Cancer J. Clin. Oncol., July 15, 2004; 22(14): 2942 - 2953. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Maeda, H. Sakuma, S. E. Maier, and K. Takeda Quantitative Assessment of Diffusion Abnormalities in Benign and Malignant Vertebral Compression Fractures by Line Scan Diffusion-Weighted Imaging Am. J. Roentgenol., November 1, 2003; 181(5): 1203 - 1209. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Castillo Diffusion-Weighted Imaging of the Spine: Is It Reliable? AJNR Am. J. Neuroradiol., June 1, 2003; 24(6): 1251 - 1253. [Full Text] [PDF] |
||||
![]() |
R. Bammer, A. M. Herneth, S. E. Maier, K. Butts, R. W. Prokesch, H. M. Do, S. W. Atlas, and M. E. Moseley Line Scan Diffusion Imaging of the Spine AJNR Am. J. Neuroradiol., January 1, 2003; 24(1): 5 - 12. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. M. Herneth, M. O. Philipp, J. Naude, M. Funovics, R. R. Beichel, R. Bammer, and H. Imhof Vertebral Metastases: Assessment with Apparent Diffusion Coefficient Radiology, December 1, 2002; 225(3): 889 - 894. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. Baur, A. Stabler, S. Arbogast, H. R. Duerr, R. Bartl, and M. Reiser Acute Osteoporotic and Neoplastic Vertebral Compression Fractures: Fluid Sign at MR Imaging Radiology, December 1, 2002; 225(3): 730 - 735. [Abstract] [Full Text] [PDF] |
||||
![]() |
J. D. Eastwood, R. T. Vollmer, and J. M. Provenzale Diffusion-Weighted Imaging in a Patient with Vertebral and Epidural Abscesses AJNR Am. J. Neuroradiol., March 1, 2002; 23(3): 496 - 498. [Abstract] [Full Text] [PDF] |
||||
![]() |
J H M Chan, W C G Peh, E Y K Tsui, L F Chau, K K Cheung, K B Chan, M K Yuen, E T H Wong, and K P C Wong Acute vertebral body compression fractures: discrimination between benign and malignant causes using apparent diffusion coefficients Br. J. Radiol., March 1, 2002; 75(891): 207 - 214. [Abstract] [Full Text] [PDF] |
||||
![]() |
J. D. Eastwood, D. A. Turner, R. E. McLendon, and J. M. Provenzale Diffusion-Weighted MR Imaging in a Patient with Spinal Meningioma Am. J. Roentgenol., December 1, 2001; 177(6): 1479 - 1481. [Full Text] [PDF] |
||||
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |