[慢性精神分裂症和双相情感障碍SPECT评估局部脑血流的可靠性]。

Actas luso-espanolas de neurologia, psiquiatria y ciencias afines Pub Date : 1998-01-01

C Ceballos Alonso, T Baringo Fuentes, T Ventura Faci, C Pelegrín Valero, A Lobo Satue

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引用次数: 0

摘要

目的:验证99mtc - hmpao脑SPECT的可靠性。方法与材料:应用SPECT评价24例精神分裂症患者、24例双相情感障碍患者和20例对照组的脑血流量。在研究中，我们在观察者和内部观察者之间有可靠性。在这两种情况下，kappa统计量已被用于测量信度。结果:观察者之间的信度kappa系数为0.71。观察者内信度为0.74，中等等级的一致性略好。结论:使用99mTc- HMPAO对SPECT图像进行视觉评估是一种值得信赖的技术，可以记录脑血流的不同模式。在观察者(kappa: 0.71)和内部观察者(kappa: 0.74)之间的视觉分析中，可靠性是由改进决定的。

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[Reliability of the evaluation of regional cerebral blood flow using SPECT in chronic schizophrenia and bipolar disorder].

Objects: Demonstrate the reliability of cerebral SPECT using 99 mTc-HMPAO.

Methods & materials: Evaluation of cerebral blood flow using SPECT in 24 patients with schizophrenia, 24 patients with bipolar disorder and 20 controls. In the study we have reliability between observers and intraobserver. In both cases kappa statistic has been applied for measuring reliability.

Results: reliability between observers represents a kappa coefficient of 0.71. Intraobserver reliability, with a medium grade concordance slightly superior, shows a medium kappa coefficient of 0.74.

Conclusions: Visual evaluation of SPECT images using 99mTc--HMPAO is a trustworthy technique to document the different patterns of regional cerebral blood flow. Reliability is determinate by the improvement, during visual analysis of reliability between observers (kappa: 0.71) and intraobservers (kappa: 0.74).

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Actas luso-espanolas de neurologia, psiquiatria y ciencias afines

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