18F-FDG PET与99Tcm-MDP骨显像在诊断肿瘤骨转移中的比较

恶性肿瘤发生骨转移将大大影响患者的生存率、降低患者的生活质量.PET和骨显像作为两种常见的评估全身骨骼情况的显像模式,能早期发现骨转移,进行肿瘤分期,帮助临床治疗.通过两种显像的原理,可以分析不同骨质破坏的病理类型的诊断差异和侧重点.除PET和骨显像之外,MRI也是灵敏度很高的影像学检查方法之一.此外,新型PET示踪剂的出现和PET-CT、SPECT-CT融合显像必将为核医学探测肿瘤骨转移提供新的价值.     

^18F—FDG PET显像与^99Tc^m—MDP全身骨显像诊断肿瘤远处转移的比较

目的 评价^18F-脱氧葡萄糖（FDG）PET肿瘤显像与^99Tc^m-亚甲基二膦酸盐（MDP）全身骨显像对检出骨和远处转移的价值。方法 对16例恶性肿瘤放化疗后的患者进行^18F-FDG PET显像和^99Tc^m-MDP全身骨显像，并对两种结果进行了比较。结果 16例肿瘤患者中^18F-FDG PET显像皆阳性，其中14例患者有远处转移，转移病灶共62处，其中骨转移病灶20处；在全身骨显像中，11例有局限性异常放射性浓聚，其中2例为单一病灶，9例为多发病灶，共检出病灶57处，另5例骨显像正常。结论 ^18F-FDG PET对恶性肿瘤的诊断具有较高的准确性和特异性，但对骨转移灶的诊断价值相对较差；^99Tc^m-MDP显像阴性或单一病灶的可疑转移瘤患者有必要进行^18F－FDG PET检查，以明确诊断其他远处转移灶。     

18F-FDG PET与99Tcm- MDP显像诊断肿瘤骨转移的比较

目的　研究1 8F 脱氧葡萄糖 (FDG)PET显像对肿瘤骨转移的诊断价值 ,并与99Tcm 亚甲基二膦酸盐 (MDP)骨显像比较。方法　 4 3例确诊的肿瘤患者在 1个月内先后行1 8F FDGPET及99Tcm MDP骨显像 ,其中 2 4例经其他检查及随访证实为骨转移。对比分析 2种显像结果。结果　 2 4例骨转移患者FDGPET显像均为阳性 ,骨显像阳性 2 2例 ,灵敏度分别为 10 0 %和 91.7% ,差异无显著性 (P >0 0 5 )。19例无骨转移患者中FDGPET显像阴性 18例 ,骨显像阴性 11例 ,特异性分别为 94 .7%和5 7 9% ,差异有显著性 (P <0 0 5 )。 2种方法检测骨转移的准确性分别为 97.7%和 76 .7% ,差异有显著性 (P <0 0 5 )。结论　1 8F FDGPET显像诊断肿瘤骨转移的灵敏度与99Tcm MDP骨显像无明显差别 ,但有更高的特异性和准确性。     

ROC曲线评价18F-FDG PET/CT、99Tcm-MDP骨显像及二者联合对骨转移的检出效能

目的 采用ROC曲线比较18F-FDG PET/CT、99Tcm-MDP骨显像及二者联合对骨转移患者的检出效能.方法 296例恶性肿瘤患者在2个月内同时接受了18F-FDG PET/CT和99Tcm-MDP骨显像,对2种显像结果 按5分法(0分:骨转移阴性,1分:可能阴性,2分:不能确定,3分:可能阳性,4分:肯定阳性...     

PET评价骨转移瘤

肿瘤骨转移会产生顽固性骨痛和脊髓受压等严重并发症,并对分期、治疗和判断预后产生深远的影响,因而探测骨转移是制定治疗计划的重要部分。骨转移瘤发现频率因原发肿瘤的类型和所用检查手段不同而不同,虽然目前核素骨扫描是探测骨转移瘤最常用的手段,但其对骨转移瘤的诊断效能仍有一定限度。与99mTc-亚甲基二膦酸盐(99mTc-MDP)骨显像相比,18F-氟化钠(18F-NaF)和18F-氟代脱氧葡萄糖(18F-FDG) PET是分别从骨转移瘤产生的成骨反应和骨转移瘤本身的代谢活性角度进行评价的两种正电子示踪剂,结合PET的高度空间分辨率,特别是最近迅速应用于临床的PET-CT技术,使得正电子体层显像在全身骨骼恶性疾病评价上的准确性进一步提高。     

18 F-FDG PET显像与99Tcm-MDP全身骨显像诊断肿瘤远处转移的比较

目的　评价18F 脱氧葡萄糖 (FDG)PET肿瘤显像与99Tcm 亚甲基二膦酸盐 (MDP)全身骨显像对检出骨和远处转移的价值。方法　对 16例恶性肿瘤放化疗后的患者进行18F FDGPET显像和99Tcm MDP全身骨显像 ,并对两种结果进行了比较。结果　 16例肿瘤患者中18F FDGPET显像皆阳性 ,其中 14例患者有远处转移 ,转移病灶共 62处 ,其中骨转移病灶 2 0处 ;在全身骨显像中 ,11例有局限性异常放射性浓聚 ,其中 2例为单一病灶 ,9例为多发病灶 ,共检出病灶 5 7处 ,另 5例骨显像正常。结论　18F FDGPET对恶性肿瘤的诊断具有较高的准确性和特异性 ,但对骨转移灶的诊断价值相对较差 ;99Tcm MDP显像阴性或单一病灶的可疑转移瘤患者有必要进行18F FDGPET检查 ,以明确诊断其他远处转移灶     

18F-FDG PET与99Tcm-MDP骨扫描诊断肿瘤骨转移的比较分析

目的:探讨18F-FDG PET显像对于肿瘤骨转移的诊断价值,并与99Tcm-MDP骨显像进行对比分析。方法:97例肿瘤及疑诊为肿瘤的患者在30天内先后行18F-FDG PET-CT及99Tcm-MDP骨扫描,对比分析两者的显像结果。结果:97例中经临床和病理确诊基于病例分析,为骨转移63例,62例18F-FDG PET显像阳性,1例假阴性;99Tcm-MDP骨显像阳性49例,假阴性14例,两者敏感度分别为98.4%和77.8%,差异有显著性意义(P<0.05);34例为阴性患者,其中PET显像阴性29例、假阳性5例,骨显像阴性21例、假阳性13例,两者的特异度为85.3%和61.8%(P>0.05),符合率为93.8%和72.2%(P<0.05)。基于病灶分析,97例中共分析1261个骨骼区,骨转移存在于226个骨骼区,剔除不能定性的14个区,18F-FDG PET显像阳性222个区,假阴性4个区;而骨扫描显像阳性154个区,假阴性72个区;两者的敏感度分别为98.7%和68.1%,差异有显著性意义(P<0.05)。1021个阴性区,其中18F-FDGPET显像为阴性1010个区,假阳性11个区;骨扫描显像阴性1001个区,假阳性20个区;两者特异度分别为98.9%和98.0%,差异无统计学意义(P>0.05)。18F-FDG PET的诊断符合率为98.8%,骨显像为92.6%,两者差异有显著性意义(P<0.05)。以CT表现分组,溶骨性病灶和CT上无明显异常改变病灶的FDG PET和骨扫描的检出率分别为99.4%和72.6%及81.5%和40.7%,差异有显著性意义(P<0.05)。结论:18F-FDG PET诊断敏感度及准确性均高于骨扫描对溶骨病灶和CT上无明显改变病灶的检出优于骨扫描。     

放射性核素骨显像在腰腿痛患者中的应用价值

目的:探讨放射性核素全身骨显像在腰腿痛患者中的应用价值。方法:对我院以腰腿痛为主要症状、X线、CT检查结果完整的患者417例进行了全身骨显像,并按患者有无肿瘤病史将其分为两组,其中肿瘤病史组165例,非肿瘤病史组252例。分别观察了核素骨显像在这两组患者中的应用情况。结果:肿瘤病史组165例检出肿瘤骨转移68例,占39.4%,非肿瘤病史组252例检出肿瘤骨转移28例,占11.1%。核素骨显像对椎体退行性变、椎间盘突出、椎管狭窄等常导致腰腿痛的疾病没有特异性图像表现。结论:对有肿瘤病史的腰腿痛患者应首选核素全身骨显像检查。对于无肿瘤病史的腰腿痛患者,只对查不出确切病因或对症治疗无效的患者,加做全身骨显像以排除有无肿瘤骨转移。     

~(11)C-CHO PET/CT显像与全身骨显像在前列腺癌复发患者骨转移中诊断价值

目的探讨~(11)C-CHO PET/CT显像与全身骨显像在前列腺癌复发患者骨转移中的诊断价值。方法回顾性分析自2011年5月至2015年5月沈阳军区总医院核医学科收治的前列腺癌复发患者96例(PSA:2.5-56.0 mg/L)。所有患者均在2周内行~(11)C-CHO PET/CT显像与全身骨显像,以活检、18F-FDG PET/CT、增强CT、MRI、临床随访等综合评价为诊断标准,比较两者诊断的灵敏度、特异度。结果 96例患者中,~(11)C-CHO PET/CT显像与全身骨显像,共发现57个阳性病灶,其中,46个病灶经后续确诊为转移瘤。~(11)C-CHO PET/CT显像与全身骨显像诊断转移灶灵敏度分别为93.3%、69.6%,特异度分别为90.9%、36.4%。~(11)C-CHO PET/CT显像发现骨外转移26处:局部复发10处、膈下淋巴结4处、膈上淋巴结2处、局部复发合并膈下淋巴结5处、膈上合并膈下淋巴结4处以及膈上淋巴结合并肺转移1处。结论在诊断前列腺癌复发患者骨转移方面,~(11)C-CHO PET/CT显像的诊断灵敏度和特异度优于传统全身骨显像,并且~(11)C-CHO PET/CT显像能够发现局部复发、淋巴结和远处器官转移病灶,获得更加准确的临床分期,有助于选择合适的治疗方案。     

血清CA15-3、CEA检测联合全身骨显像在乳腺癌骨转移中的诊断价值

目的 评价血清肿瘤标志物糖类抗原15-3(CA15-3)、癌胚抗原(CEA)检测联合全身骨显像在乳腺癌骨转移诊断中的价值.方法 对97例乳腺癌患者(其中,骨转移组46例、无骨转移组51例)及45例良性乳腺疾病患者(良性病变组)行SPECT全身骨显像,对骨显像阴性但骨痛明显患者,再行CT或MRI检查以确诊.同时,用电化学...     

Imaging of bone metastasis: An update

Early detection of skeletal metastasis is critical for accurate staging and optimal treatment. This paper briefly reviews our current understanding of the biological mechanisms through which tumours metastasise to bone and describes the available imaging methods to diagnose bone metastasis and monitor response to treatment. Among the various imaging modalities currently available for imaging skeletal metastasis, hybrid techniques which fuse morphological and functional data are the most sensitive and specific, and positron emission tomography (PET)/computed tomography and PET/magnetic resonance imaging will almost certainly continue to evolve and become increasingly important in this regard.     

18F-NaF的合成及其在肺癌骨转移中的临床应用

目的 合成并检测^18F-NaF；比较^99Tc^m-亚甲基二膦酸盐（MDP）全身骨显像与^18F-NaFPET／CT骨显像对诊断肺癌骨转移的价值。方法 用MINItrace回旋加速器通过核反应^18O（P，n）^18F-生产^18F-F^-1，用离子交换法合成^18F-NaF并进行质控检测。对10例已行^99Tc^m-MDP全身骨显像的肺癌患者行^18F-NaFPET／CT检查，对两者图像进行比较。结果 ^18F-NaF注射液符合要求^18F-NaFPET／CT骨显像探测到^99Tc^mMDP骨显像发现的所有病灶，并探测到后者未发现的8个病灶，使^99Tcm-MDP骨显像不确定诊断数减少。结论 ^18F-NaFPET／CT诊断肺癌骨转移准确性更高，可作为^99Tc^m-MDP骨显像的补充。     

An introduction to Na(18)F bone scintigraphy: basic principles, advanced imaging concepts, and case examples

Na(18)F, an early bone scintigraphy agent, is poised to reenter mainstream clinical imaging with the present generations of stand-alone PET and PET/CT hybrid scanners. (18)F PET scans promise improved imaging quality for both benign and malignant bone disease, with significantly improved sensitivity and specificity over conventional planar and SPECT bone scans. In this article, basic acquisition information will be presented along with examples of studies related to oncology, sports medicine, and general orthopedics. The use of image fusion of PET bone scans with CT and MRI will be demonstrated. The objectives of this article are to provide the reader with an understanding of the history of early bone scintigraphy in relation to Na(18)F scanning, a familiarity with basic imaging techniques for PET bone scanning, an appreciation of the extent of disease processes that can be imaged with PET bone scanning, an appreciation for the added value of multimodality image fusion with bone disease, and a recognition of the potential role PET bone scanning may play in clinical imaging.     

Detection of bone marrow metastases by FDG-PET and missed by bone scintigraphy in widespread melanoma

The optimal management of patients with melanoma requires accurate imaging techniques that can screen the entire body for metastases. One of the most used tests for this purpose is bone scintigraphy. PET has been reported to be more sensitive than bone scintigraphy in some malignancies. In our case, FDG-PET was also superior to bone scintigraphy in detecting the extent of skeletal disease in a patient with melanoma. This is likely the result of the fact that metastasis to bone marrow may not result in bone reaction in certain conditions and therefore bone scans may remain negative despite skeletal involvement.     

18F-NaF PET/CT骨显像在甲状旁腺功能亢进性骨病中的应用

目的 探讨甲状旁腺功能亢进性骨病18F-NaF PET/CT骨显像的影像学特点及其应用价值。 方法 收集30例经临床及术后病理证实为甲状旁腺功能亢进症患者[男性11例、女性19例,年龄18～71（52.3±13.5）岁]的18F-NaF PET/CT骨显像及99Tcm -亚甲基二膦酸盐（99Tcm-MDP）全身骨显像资料,回顾性分析其18F-NaF PET/CT骨显像特点,对比两种骨显像方法对该病局部骨骼病灶的检出情况,并根据Mirels评分标准对棕色瘤进行评分。 结果 两种骨显像方法定性结果一致,即骨显像阴性15例,阳性15例。甲状旁腺功能亢进性骨病在18F-NaF PET图像上大部分表现为以全身多骨弥漫性骨代谢增高为主的多种代谢性骨病征象,并发棕色瘤、骨硬化及病理性骨折等时表现为单发或多发局灶性显像剂异常分布,其中棕色瘤表现为局灶性显像剂浓聚、显像剂稀疏或病灶中心显像剂分布缺损伴边缘显像剂不均匀浓聚;同机CT图像上均表现为全身多骨多种形式的骨质吸收,其中,表现为广泛骨质疏松13例、伴棕色瘤7例、骨质硬化6例、骨质软化3例、病理性骨折3例。15例甲状旁腺功能亢进性骨病患者共检出局部骨骼病灶（棕色瘤、骨硬化、病理性骨折、假骨折）53个,其中,18F-NaF PET/CT骨显像全部检出,99Tcm-MDP全身骨显像检出32个。7例甲状旁腺功能亢进性骨病患者伴棕色瘤,位于长骨的棕色瘤病灶数共24个,其中9个Mirels评分大于9分。 结论 甲状旁腺功能亢进性骨病在18F-NaF PET/CT骨显像上的全身骨代谢及解剖学表现有一定的特征性表现,18F-NaF PET/CT骨显像结合同机CT上全身骨骼病灶的详细信息,在甲状旁腺功能亢进性骨病的诊断、鉴别诊断及病情严重程度评估中有更好的应用价值。     

Diagnostic accuracy of bone metastases detection in cancer patients: Comparison between bone scintigraphy and whole-body FDG-PET

18F-fluorodeoxyglucose (FDG) positron emission tomography (PET) has become widely available and an important oncological technique. To evaluate the influence of PET on detection of bone metastasis, we compared the diagnostic accuracy of PET and conventional bone scintigraphy (BS) in a variety of cancer patients. METHODS: Consecutive ninety-five patients with various cancers, who received both PET and BS within one month, were retrospectively analyzed. A whole-body PET (from face to upper thigh) and a standard whole body BS were performed and these images were interpreted by two experienced nuclear medicine physicians with and without patient information using monitor diagnosis. Each image interpretation was performed according to 8 separate areas (skull, vertebra, upper limbs, sternum and clavicles, scapula, ribs, pelvis, and lower limbs) using a 5-point-scale (0: definitely negative, 1: probably negative, 2: equivocal, 3: probably positive, 4: definitely positive for bone metastasis). RESULTS: Twenty-one of 95 patients (22.1%) with 43 of 760 areas (5.7%) of bone metastases were finally confirmed. In untreated patients, 12 of 14 bone metastasis positive patients were detected by PET, while 9 of 14 were detected by BS. Three cases showed true positive in PET and false negative in BS due to osteolytic type bone metastases. In untreated cases, PET with and without clinical information showed better sensitivity than BS in patient-based diagnosis. For the purpose of treatment effect evaluation, PET showed better results because of its ability in the evaluation of rapid response of tumor cells to chemotherapy. Out of 10 cases of multiple-area metastases, 9 cases included vertebrae. There was only one solitary lesion located outside of FOV of PET scan in the femur, but with clinical information that was no problem for PET diagnosis. CONCLUSION: Diagnostic accuracy of bone metastasis was comparable in PET and BS in the present study. In a usual clinical condition, limited FOV (from face to upper thigh) of PET scan may not be a major drawback in the detection of bone metastases because of the relatively low risk of solitary bone metastasis in skull bone and lower limbs.     

Fluorine-18 deoxyglucose positron emission tomography for the detection of bone metastases in patients with non-small cell lung cancer

Despite advances in morphological imaging, some patients with lung cancer are found to have non resectable disease at surgery or die of recurrence within a year of surgery. At present, metastatic bone involvement is usually assessed using bone scintigraphy, which has a high sensitivity but a poor specificity. We have attempted to evaluate the utility of the fluorine-18 deoxyglucose positron emission tomography (FDG PET) for the detection of bone metastasis. One hundred and ten consecutive patients with histological diagnosis of non-small cell lung cancer (NSCLC) who underwent both FDG PET and bone scintigraphy were selected for this review. In this group, there were 43 patients with metastatic disease (stage IV). Among these, 21 (19% of total group) had one or several bone metastases confirmed by biopsy (n = 8) or radiographic techniques (n = 13). Radionuclide bone scanning correctly identified 54 out of 89 cases without osseous involvement and 19 out of 21 osseous involvements. On the other hand, FDG PET correctly identified the absence of osseous involvement in 87 out of 89 patients and the presence of bone metastasis in 19 out of 21 patients. Thus using PET there were two false-negative and two false-positive cases. PET and bone scanning had, respectively, an accuracy of 96% and 66% in the evaluation of osseous involvement in patients with NSCLC. In conclusion, our data suggest that whole-body FDG PET may be useful in detecting bone metastases in patients with known NSCLC. Received 10 March and in revised form 7 May 1998     

99Tcm-MDP骨显像在肺癌骨转移疗效观察中的应用

目的：应用99Tcm-MDP骨显像对肺癌骨转移患者的治疗效果进行分析，观察其疗效差异。方法：对178例肺癌患者，在系统治疗前均行99Tcm亚甲基二膦酸盐（99Tcm-MDP）全身骨显像；85例骨显像阳性患者，单纯放疗40例。综合治疗（放疗同期化疗）45例，在治疗后2月复查骨显像．用统计学方法分析显像结果，对肺癌骨转移的治疗效果进行评价。结果：①单纯放疗组完全缓解（CR）5例，部分缓解（PR）12例，有效率（CR＋PR）为42．5％；综合治疗组分别为7例。17例，53．3％。两组比较有效牢无显著性差异（P〉0.05）。②综合治疗组中腺癌骨转移病灶有效率45%（9／20）；小细胞癌为80％（12／15）；鳞癌则为30％（3／10）。三种病理类型肺癌骨转移灶综合治疗的有效率差异有显著性（P〈0.05）。其中小细胞癌较腺癌、鳞癌骨转移灶疗效好（P均〈0．05）。③接受综合治疗的患者骨显像共有近期疗效可评价者258个病灶，其中胸部、脊椎、骨盆、四肢和颅骨分别为145个（56．20％）。57个（22．09％），34个（13．18％）。22个（8．53％）。复查骨显像有效率分别为65．52％（95／145）、63．16％（36／57）、58．82％（20／34）、54．55％（12／22），无显著性差异（P〉0．05）。结论：单纯放疗和放化疗联合均可有效治疗骨转移。不同病理类型患者应用综合治疗后效果有差异．而不同部位之问疗效无差异。应用99Tcm-MDP骨显像可对肺癌骨转移疗效进行较好观察。