Musculoskeletal neoplasm: perineoplastic edema versus tumor on dynamic postcontrast MR images with spatial mapping of instantaneous enhancement rates.

Lang P; Honda G; Roberts T; Vahlensieck M; Johnston JO; Rosenau W; Mathur A; Peterfy C; Gooding CA; Genant HK

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Musculoskeletal neoplasm: perineoplastic edema versus tumor on dynamic postcontrast MR images with spatial mapping of instantaneous enhancement rates.

机译：肌肉骨骼肿瘤：动态对比后MR图像上的肿瘤增生性水肿与肿瘤的关系，并具有瞬时增强率的空间映射。

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PURPOSE: To evaluate the utility of fast, contrast-enhanced, sequential magnetic resonance (MR) imaging in differentiating between extraosseous tumor and perineoplastic edema. MATERIALS AND METHODS: Fourteen patients underwent sequential MR imaging (3.5 seconds per image) after bolus administration of gadopentetate dimeglumine. Initial rates of enhancement (initial slope) were calculated on a pixel-by-pixel basis and displayed as a "slope image"' in which pixel intensity reflected the slope value. Close correlation with wedge biopsy specimens was performed. RESULTS: Mean initial slope values were viable extraosseous tumor, 9.33 (standard deviation, 2.23); infiltrated muscle, 9.07 (2.31); edematous muscle without tumor infiltration, 5.48 (1.27); normal muscle, 1.11 (0.65). Differences in initial slope between all neoplastic and nonneoplastic tissues were statistically significant. Within individual patients, initial slope of edematous muscle was always 20% or more lower than that of neoplastic tissue. Slope images highlighted areas of viable extraosseous tumor and infiltrated muscle against edematous and normal tissues. CONCLUSION: Computer-generated slope images derived from sequential postcontrast MR images allow differentiation between tumor and nonneoplastic edema and may thereby guide the surgeon in planning limb-sparing procedures.

机译：目的：评估快速，增强对比，顺序磁共振（MR）成像在骨外肿瘤与会阴水肿之间的区别。材料与方法：14例患者在推注加多戊酸二甲双胍后接受了连续MR成像（每幅图像3.5秒）。增强的初始速率（初始斜率）是逐像素计算的，并显示为“斜率图像”，其中像素强度反映了斜率值。与楔形活检标本密切相关。结果：平均初始斜率值是可行的骨外肿瘤，9.33（标准差，2.23）。浸润的肌肉9.07（2.31）;没有肿瘤浸润的水肿肌肉，5.48（1.27）;正常肌肉1.11（0.65）。所有赘生性和非赘生性组织之间的初始斜率差异具有统计学意义。在个别患者中，水肿肌肉的初始斜率总是比赘生性组织低20％或更高。斜坡图像突出显示了针对水肿和正常组织的活骨性肿瘤和浸润的肌肉区域。结论：从连续的造影后MR图像获得的计算机生成的斜率图像可以区分肿瘤性和非肿瘤性水肿，从而可以指导外科医生规划肢体保留程序。

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《Radiology》 |1995年第3期|共9页
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Lang P; Honda G; Roberts T; Vahlensieck M; Johnston JO; Rosenau W; Mathur A; Peterfy C; Gooding CA; Genant HK;
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正文语种 eng
中图分类放射医学;
关键词
Bone Neoplasms; Contrast Media; Edema; Image Enhancement; Magnetic Resonance Imaging; 骨肿瘤; 造影剂; 水肿; 图像增强; 磁共振成像; 肌肿瘤; 肌疾病;

机译：Bone Neoplasms;Contrast Media;Edema;Image Enhancement;Magnetic Resonance Imaging;骨肿瘤;造影剂;水肿;图像增强;磁共振成像;肌肿瘤;肌疾病;

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1. Musculoskeletal neoplasm: perineoplastic edema versus tumor on dynamic postcontrast MR images with spatial mapping of instantaneous enhancement rates. [J] . Lang P, Honda G, Roberts T, Radiology . 1995,第3期

机译：肌肉骨骼肿瘤：动态对比后MR图像上的肿瘤增生性水肿与肿瘤的关系，并具有瞬时增强率的空间映射。
2. Technical innovation in dynamic contrast-enhanced magnetic resonance imaging of musculoskeletal tumors: An MR angiographic sequence using a sparse k-space sampling strategy [J] . FayadL.M., MugeraC., SoldatosT., Skeletal radiology . 2013,第7期

机译：肌肉骨骼肿瘤动态对比增强磁共振成像的技术创新：使用稀疏k空间采样策略的MR血管造影序列
3. Musculoskeletal tumors: does fast dynamic contrast-enhanced subtraction MR imaging contribute to the characterization? [J] . van-der-Woude HJ, Verstraete KL, Hogendoorn PC, Radiology . 1998,第3期

机译：肌肉骨骼肿瘤：快速动态增强对比减影MR成像有助于表征吗？
4. Monitoring Pc 4-mediated Photodynamic Therapy of U87 Tumors with Dynamic Contrast Enhanced-Magnetic Resonance Imaging (DCE-MRI) in the Athymic Nude Rat [C] . Davood Varghai, Kelly Covey, Rahul Sharma, Conference on Photonic Therapeutics and Diagnostics; 20080119; San Jose,CA(US) . 2008

机译：通过动态对比增强磁共振成像（DCE-MRI）在无胸腺裸鼠中监测Uc肿瘤的Pc 4介导的光动力疗法。
5. An assessment of vascular normalization in 9L gliosarcoma brain tumor: Using dynamic susceptibility contrast (DSC) imaging and dynamic contrast enhancement (DCE) imaging [D] . Darpolor, Moses M. 2006

机译：评估9L胶质肉瘤脑血管正常化：使用动态磁化强度对比（DSC）成像和动态对比增强（DCE）成像
6. Complementary Roles of Dynamic Contrast-Enhanced MR Imaging and Postcontrast Vessel Wall Imaging in Detecting High-Risk Intracranial Aneurysms [O] . H. Qi, X. Liu, P. Liu, 2019

机译：动态增强磁共振成像和造影剂后血管壁成像在检测高危颅内动脉瘤中的补充作用
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8. Smart Gold Nanobowls (Nano-Crescent Moon) with Sub-10 nm Circular Edge for Local Electromagnetic Field Enhancement Effect, Spatial, and NIR Temporal/Thermal Modulations for Molecular and Cellular Dynamic Imaging [R] . Lee, L. P. 2006

机译：具有亚10nm圆形边缘的智能金纳米球（纳米月牙），用于局部电磁场增强效果，空间和NIR时间/热调制，用于分子和细胞动态成像

Musculoskeletal neoplasm: perineoplastic edema versus tumor on dynamic postcontrast MR images with spatial mapping of instantaneous enhancement rates.

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