Magnetic Resonance Enhancement Pattern as a Predictor of Cement Volume in Vertebroplasty Procedures for Osteoporotic Fractures
2
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
Purpose: To identify the differences between injected cement volumes during vertebroplasty procedures according to the enhancement pattern of pre-procedure magnetic resonance imaging (MRI) findings. Materials and Methods: Thirty-two patients who underwent 52 vertebroplasty procedures as well as pre-procedure contrast-enhanced spine MRI in the authors’ institution were reviewed retrospectively. The 52 procedures were divided into two groups according to different enhancement patterns shown by pre-procedure MR imaging [E(+) and E(-)]. The volumes of the enhancing/non-enhancing portions of the fractured vertebral body shown by pre-procedural MR imaging were calculated and compared to the volumes of the injected cement during the vertebroplasty procedures. Results: The 52 injections included 28 (56%) in Group E(+) and 24 (44%) in Group E(-). The actual volume ratio of the injected cement to the volume of the nonenhanced or enhanced region calculated based on the contrast-enhanced MRI was 0.22 ± 0.11 (cc/cm3) in the E(+) group and 0.93 ± 0.62 (cc/cm3) in the E(-) group. The average amount of injected cement was significantly different between Group E(+) and Group E(-) (P < 0.001). In addition, the ratio of the injected cement amount to the volume of the enhanced or non-enhanced portion based on the contrastenhanced MRI in Group E(-) was significantly higher than that of Group E(+) (P < 0.001). Conclusion: Different enhancement patterns shown by pre-procedure MRI can predictors of the injected cement volume during vertebroplasty procedures for osteoporotic fractures.
Abstract
Purpose: To identify the differences between injected cement volumes during vertebroplasty procedures according to the enhancement pattern of pre-procedure magnetic resonance imaging (MRI) findings. Materials and Methods: Thirty-two patients who underwent 52 vertebroplasty procedures as well as pre-procedure contrast-enhanced spine MRI in the authors’ institution were reviewed retrospectively. The 52 procedures were divided into two groups according to different enhancement patterns shown by pre-procedure MR imaging [E(+) and E(-)]. The volumes of the enhancing/non-enhancing portions of the fractured vertebral body shown by pre-procedural MR imaging were calculated and compared to the volumes of the injected cement during the vertebroplasty procedures. Results: The 52 injections included 28 (56%) in Group E(+) and 24 (44%) in Group E(-). The actual volume ratio of the injected cement to the volume of the nonenhanced or enhanced region calculated based on the contrast-enhanced MRI was 0.22 ± 0.11 (cc/cm3) in the E(+) group and 0.93 ± 0.62 (cc/cm3) in the E(-) group. The average amount of injected cement was significantly different between Group E(+) and Group E(-) (P < 0.001). In addition, the ratio of the injected cement amount to the volume of the enhanced or non-enhanced portion based on the contrastenhanced MRI in Group E(-) was significantly higher than that of Group E(+) (P < 0.001). Conclusion: Different enhancement patterns shown by pre-procedure MRI can predictors of the injected cement volume during vertebroplasty procedures for osteoporotic fractures.
참고문헌 (9)
- Mehbod A, "Vertebroplasty for osteoporotic spine fracture: prevention and treatment", Eur Spine J, 12(Suppl 2), pp.S155~S162 (2003)
- Blasco J, "Effect of vertebroplasty on pain relief, quality of life, and the incidence of new vertebral fractures: a 12-month randomized follow-up, controlled trial", J Bone Miner Res, 27, pp.1159~1166 (2012)
- Provenzano MJ, "Bone cements : review of their physiochemical and biochemical properties in percutaneous vertebroplasty", AJNR Am J Neuroradiol, 25, pp.1286~1290 (2004)
- Mathis JM, "Percutaneous vertebroplasty : complication avoidance and technique optimization", AJNR Am J Neuroradiol, 24, pp.1697~1706 (2003)
- Kaufmann TJ, "The effects of cement volume on clinical outcomes of percutaneous vertebroplasty", AJNR Am J Neuroradiol, 27, pp.1933~1937 (2006)
- Molloy S, "Effect of cement volume and placement on mechanical-property restoration resulting from vertebroplasty", AJNR Am J Neuroradiol, 26, pp.401~404 (2005)
- Ryu KS, "Dose-dependent epidural leakage of polymethylmethacrylate after percutaneous vertebroplasty in patients with osteoporotic vertebral compression fractures", J Neurosurg, 96, pp.56~61 (2002)
- Tanigawa N, "Relationship between cement distribution pattern and new compression fracture after percutaneous vertebroplasty", AJR Am J Roentgenol, 189, pp.W348~W352 (2007)
- Oka M, "Intravertebral cleft sign on fat-suppressed contrastenhanced MR : correlation with cement distribution pattern on percutaneous vertebroplasty", Acad Radiol, 12, pp.992~999 (2005)