基于影像学技术区分良恶性骨肿瘤MR参数分析.pdfVIP

Differentiatingbenignfrommalignantosseoustumors

JohanL.bloem.J.l.bloem@lumc.nl

Keypoints

-Radiographssupportedbyepidemiologicdataremainthemainstayindifferentiatingbenign

frommalignantosseousions.

-MRaddstoradiographsindifferentiatingbenignfrommalignantcartilaginoustumors.

-OndynamicMRenhancementofpartsofacartilaginoustumorwithin10sec.ofenhancement

ofafeedingarteryisasignofchondrosarcoma.

-ExtracompartmentalextensionseenonMRisasignofmalignancy

-MarkedreactivechangesseenonMRarenotasignofmalignancy

-MRisveryaccurateindifferentiatingbenignfrommalignantsofttissuetumors,butinosseous

tumorsitaddsonlytoradiographsinspecificsituations,mainlyindiagnosingcartilaginous

tumors.

ObjectivesaretounderstandtumorbiologythatexinstheMRappearanceofbenignand

malignantosseoustumors,toidentifyusefulMRparametersindifferentiatingweenbenign

andmalignantosseousions,andtoidentifylimitationsofMRindifferentiatingween

benignandmalignantosseousions.

Introduction

Thequestionisthisosseousionbenignormalignantmayarisewhenanalfindingis

seenonaradiograph,afterafracturehasoccurred,ifasymptomaticpatientpresentswitha

鉴别良性骨和恶性骨

约翰·L·布洛姆.J.l.bloem@lumc.nl

要点

‑流行病学数据支持的线仍然是区分良性和恶性骨病变的主要。

‑MR增加了X线的功能，可以区分良性和恶性软骨。

-10秒内对软骨部分进行动态MR增强。供血动脉增强是软骨肉瘤的标志。

-MR上看到的室外扩展是的标志‑MR上看到的明显反应性变化不是恶性肿

瘤的标志‑MR在区分良性和恶性软