中国医师进修杂志
中國醫師進脩雜誌
중국의사진수잡지
CHINESE JOURNAL OF POSTGRADUATES OF MEDICINE
2014年
11期
38-41
,共4页
肺肿瘤%淋巴结%体层摄影术,螺旋计算机%能谱CT成像
肺腫瘤%淋巴結%體層攝影術,螺鏇計算機%能譜CT成像
폐종류%림파결%체층섭영술,라선계산궤%능보CT성상
Lung neoplasms%Lymph nodes%Tomography,spiral computed%Spectrum CT imaging
目的 分析肺癌及淋巴结转移灶在不同单能量下CT值、碘(水)密度变化,以探讨能谱CT在肺癌及淋巴结转移灶诊断中的临床价值.方法 回顾性分析经临床病理确诊的42例肺占位性病变患者能谱CT成像的临床资料.其中良性疾病19例(良性组),肺癌23例(肺癌组).结果 能谱CT成像诊断肺占位性病变及淋巴结转移灶的x2值分别为26.1和153.8,差异无统计学意义(P＞0.05).肺恶性占位性病变keV越低,CT值差异越大.良性组动脉期标准化碘密度(0.13±0.08) g/L显著低于肺癌组的(0.20±0.15) g/L,差异有统计学意义(P＜0.05);良性组动脉期标准化水密度(1.01±0.01) g/L与肺癌组(1.00±0.01)g/L比较差异无统计学意义(P＞0.05).淋巴结转移灶能谱曲线斜率(1.10±0.07)与原发肺癌灶(1.07±0.08)一致,差异无统计学意义(t=1.83,P＞0.05).鳞癌、腺癌、小细胞肺癌在不同单能量下成像,能谱曲线斜率比较差异无统计学意义(P＞0.05).结论 能谱CT在肺癌及淋巴结转移灶的检出上具有明显优势,其定量分析有助于肺部良恶性占位及淋巴结的诊断及鉴别诊断,在临床较难诊断病灶的鉴别诊断中有重要价值.
目的 分析肺癌及淋巴結轉移竈在不同單能量下CT值、碘(水)密度變化,以探討能譜CT在肺癌及淋巴結轉移竈診斷中的臨床價值.方法 迴顧性分析經臨床病理確診的42例肺佔位性病變患者能譜CT成像的臨床資料.其中良性疾病19例(良性組),肺癌23例(肺癌組).結果 能譜CT成像診斷肺佔位性病變及淋巴結轉移竈的x2值分彆為26.1和153.8,差異無統計學意義(P＞0.05).肺噁性佔位性病變keV越低,CT值差異越大.良性組動脈期標準化碘密度(0.13±0.08) g/L顯著低于肺癌組的(0.20±0.15) g/L,差異有統計學意義(P＜0.05);良性組動脈期標準化水密度(1.01±0.01) g/L與肺癌組(1.00±0.01)g/L比較差異無統計學意義(P＞0.05).淋巴結轉移竈能譜麯線斜率(1.10±0.07)與原髮肺癌竈(1.07±0.08)一緻,差異無統計學意義(t=1.83,P＞0.05).鱗癌、腺癌、小細胞肺癌在不同單能量下成像,能譜麯線斜率比較差異無統計學意義(P＞0.05).結論 能譜CT在肺癌及淋巴結轉移竈的檢齣上具有明顯優勢,其定量分析有助于肺部良噁性佔位及淋巴結的診斷及鑒彆診斷,在臨床較難診斷病竈的鑒彆診斷中有重要價值.
목적 분석폐암급림파결전이조재불동단능량하CT치、전(수)밀도변화,이탐토능보CT재폐암급림파결전이조진단중적림상개치.방법 회고성분석경림상병리학진적42례폐점위성병변환자능보CT성상적림상자료.기중량성질병19례(량성조),폐암23례(폐암조).결과 능보CT성상진단폐점위성병변급림파결전이조적x2치분별위26.1화153.8,차이무통계학의의(P＞0.05).폐악성점위성병변keV월저,CT치차이월대.량성조동맥기표준화전밀도(0.13±0.08) g/L현저저우폐암조적(0.20±0.15) g/L,차이유통계학의의(P＜0.05);량성조동맥기표준화수밀도(1.01±0.01) g/L여폐암조(1.00±0.01)g/L비교차이무통계학의의(P＞0.05).림파결전이조능보곡선사솔(1.10±0.07)여원발폐암조(1.07±0.08)일치,차이무통계학의의(t=1.83,P＞0.05).린암、선암、소세포폐암재불동단능량하성상,능보곡선사솔비교차이무통계학의의(P＞0.05).결론 능보CT재폐암급림파결전이조적검출상구유명현우세,기정량분석유조우폐부량악성점위급림파결적진단급감별진단,재림상교난진단병조적감별진단중유중요개치.
Objective To analyze the change of CT value,iodine (water) density in lung cancer and lymph node metastases under different single-energy,and investigate the clinical value of spectrum CT in the diagnosis of lung cancer and lymph node metastases.Methods The clinical and pathological diagnosis of 42 patients with lung lesions,the clinical data of spectrum CT imaging were retrospectively analyzed.Nineteen cases with benign diseases (benign group),23 cases with lung cancer(lung cancer group).Results Thex2 value of spectrum CT imaging in the diagnosis of lung lesions and lymph node metastases was 26.1 and 153.8,there was no significant difference(P ＞ 0.05).Malignant lung lesions lower keV,the greater difference in CT value.The arterial phase standard iodine density in benign group was lower than that in lung cancer group [(0.13 ± 0.08) g/L vs.(0.20 ± 0.15) g/L],there was significant difference (P ＜ 0.05).The arterial phase standard water density between benign group and lung cancer group had no significant difference [(1.01 ± 0.01) g/L vs.(1.00 ±0.01) g/L] (P＞ 0.05).Spectrum curve slope in lymph node metastases and lung cancer had no significant difference (1.10 ± 0.07 vs.1.07 ± 0.08)(t =1.83,P ＞ 0.05).The spectrum curve slope of squamous carcinoma,adenocarcinoma and small cell lung cancer under different energy imaging had no significant difference (P ＞ 0.05).Conclusion Spectrum CT has obvious advantages in detection of lung cancer and lymph node metastases,and its quantitative analysis is helpful in the diagnosis and differential diagnosis of benign and malignant lung tumor and lymph nodes,in the differential diagnosis of clinical difficult to diagnosis lesions has significant value.
