61MedicalJournalofKiangWu,Jun2023,Vol23.No.1鏡湖醫學2023年6月第23卷第1期‧經驗交流‧[摘要]目的探討標準算法與肺算法重建技術對低劑量胸部薄層CT圖像質量的影響。方法收集2020年1月~2020年10月行胸部低劑量CT平掃的患者。應用GERevolution256層寬體探測器CT掃描儀，所得原始數據分別採用標準算法及肺算法進行重建，由一名資深技師與兩名高年資放射科醫師共同觀察，對各個病灶（磨玻璃結節、實性結節）的顯示圖像質量進行評估比較並打分，對比分析2組病灶2種不同重建算法的顯示效果。結果102例患者進行了胸部低劑量CT檢查。其中實性結節101個，磨玻璃結節45個。以上2組病灶2種不同重建算法的顯示效果中，磨玻璃結節在兩種算法中具有顯著差異(P<0�01)。實性結節病灶未見明顯統計學差異。結論與肺算法相比較，標準算法對於磨玻璃結節的顯示有優勢，對實性結節的顯示相似。[關鍵詞]肺算法；標準算法；低劑量；胸部疾病；電腦體層成像Comparisonoflungalgorithmandstandardalgorithminlow-dosechestCTimagequalityYANGZhenYong*,TOUChiIeng,KUOKHonLam,CHEONGChiFongDepartmentofRadiology,KiangWuHospital,Macau[Abstract]ObjectiveToinvestigatetheimpactofthestandardalgorithmandlungalgorithmreconstructiontechnologyontheimagequalityoflow-dosechestthin-sliceCT.MethodsPatientswhounderwentlow-dosechestCTscansfromJanuary2020toOctober2020werecollected.UsingaGERevolution256-slicewide-bodydetectorCTscanner,theobtainedrawdatawerereconstructedusingstandardalgorithmsandlungalgorithms.Aseniortechnicianandtwoseniorradiologistswerejointlyobserved.Theimagequalityofground-glassnodulesandsolidnoduleswereevaluatedandscored,andthedisplayeffectsoftwodifferentreconstructionalgorithmswerecomparedandanalyzedinthetwogroupsoflesions.ResultsLow-doseCTofthechestwasperformedin102patients.Amongthem,101weresolidnodules,and45wereground-glassnodules.Amongthedisplayeffectsoftwodifferentreconstructionalgorithmsforlesionsintheabovefourgroups,theground-glassnodulesweresignificantlydifferentbetweenthetwoalgorithms(P<0.01).Therewasnosignificantdifferenceinsolidnodulelesions.ConclusionComparedwiththelungalgorithm,thestandardalgorithmhasadvantagesinthevisualizationofground-glassnodulesan...
