Objective:To build a VGG-based computer-aided diagnostic model for chronic sinusitis and evaluate its efficacy. Methods:①A total of 5 000 frames of diagnosed sinus CT images were collected. The normal group consisted of 1 000 frames(250 frames each of maxillary sinus, frontal sinus, septal sinus, and pterygoid sinus), while the abnormal group consisted of 4 000 frames(1 000 frames each of maxillary sinusitis, frontal sinusitis, septal sinusitis, and pterygoid sinusitis). ②The models were trained and simulated to obtain five classification models for the normal group, the pteroid sinusitis group, the frontal sinusitis group, the septal sinusitis group and the maxillary sinusitis group, respectively. The classification efficacy of the models was evaluated objectively in six dimensions: accuracy, precision, sensitivity, specificity, interpretation time and area under the ROC curve(AUC). ③Two hundred randomly selected images were read by the model with three groups of physicians(low, middle and high seniority) to constitute a comparative experiment. The efficacy of the model was objectively evaluated using the aforementioned evaluation indexes in conjunction with clinical analysis. Results:①Simulation experiment: The overall recognition accuracy of the model is 83.94%, with a precision of 89.52%, sensitivity of 83.94%, specificity of 95.99%, and the average interpretation time of each frame is 0.2 s. The AUC for sphenoid sinusitis was 0.865(95%CI 0.849-0.881), for frontal sinusitis was 0.924(0.991-0.936), for ethmoidoid sinusitis was 0.895(0.880-0.909), and for maxillary sinusitis was 0.974(0.967-0.982). ②Comparison experiment: In terms of recognition accuracy, the model was 84.52%, while the low-seniority physicians group was 78.50%, the middle-seniority physicians group was 80.50%, and the seniority physicians group was 83.50%; In terms of recognition accuracy, the model was 85.67%, the low seniority physicians group was 79.72%, the middle seniority physicians group was 82.67%, and the high seniority physicians group was 83.66%. In terms of recognition sensitivity, the model was 84.52%, the low seniority group was 78.50%, the middle seniority group was 80.50%, and the high seniority group was 83.50%. In terms of recognition specificity, the model was 96.58%, the low-seniority physicians group was 94.63%, the middle-seniority physicians group was 95.13%, and the seniority physicians group was 95.88%. In terms of time consumption, the average image per frame of the model is 0.20 s, the average image per frame of the low-seniority physicians group is 2.35 s, the average image per frame of the middle-seniority physicians group is 1.98 s, and the average image per frame of the senior physicians group is 2.19 s. Conclusion:This study demonstrates the potential of a deep learning-based artificial intelligence diagnostic model for chronic sinusitis to classify and diagnose chronic sinusitis; the deep learning-based artificial intelligence diagnosis model for chronic sinusitis has good classification performance and high diagnostic efficacy.
目的:搭建基于VGG的慢性鼻窦炎计算机辅助诊断模型,并评价其效能。 方法:①收集5 000帧已确诊的鼻窦CT图像,将其分为正常组1 000帧图像(其中,正常的上颌窦、额窦、筛窦、蝶窦影像图像各250帧)及异常组4 000帧图像(其中,上颌窦炎、额窦炎、筛窦炎、蝶窦炎影像图像各1 000帧),对图像进行大小归一化及分割预处理;②训练模型并对其进行仿真实验,分别得到正常组,蝶窦炎组,额窦炎组,筛窦炎组以及上颌窦炎组5个分类模型,从准确度、精确度、灵敏度、特异度、判读时间及ROC曲线下面积(AUC)6个维度,客观评价模型的分类效能;③随机选取200帧图像,通过模型与低年资医师组、中年资医师组、高年资医师组分别阅片构成对比试验,结合临床通过以上评价指标客观评价模型的效能。 结果:①仿真实验:整个模型的识别准确度为83.94%,精确度为89.52%,灵敏度为83.94%,特异度为95.99%,平均每帧图像判读时间为0.20 s;蝶窦炎的AUC为0.865(95%CI 0.849~0.881),额窦炎的AUC为0.924(0.911~0.936),筛窦炎的AUC为0.895(0.880~0.909),上颌窦炎的AUC为0.974(0.967~0.982)。②对比实验:在识别准确度上,模型为84.52%,低年资医师组为78.5%、中年资医师组为80.5%,高年资医师组为83.5%;在识别精确度上,模型为85.67%,低年资医师组为79.72%,中年资医师组为82.67%,高年资医师组为83.66%;在识别灵敏度上,模型为84.52%,低年资医师组为78.50%,中年资医师组为80.50%,高年资医师组为83.50%;在识别特异度上,模型为96.58%,低年资医师组为94.63%,中年资医师组为95.13%,高年资医师组为95.88%;在耗时上,模型平均每帧图像为0.20 s,低年资医师组平均每帧图像为2.35 s,中年资医师组平均每帧图像为1.98 s,高年资医师组平均每帧图像为2.19 s。 结论:本研究强调了基于深度学习的慢性鼻窦炎人工智能诊断模型分类诊断慢性鼻窦炎的可能性;基于深度学习的慢性鼻窦炎人工智能诊断模型分类性能好,具有较高的诊断效能。.