{
  "ptid_time": "033_S_1086_2007-12-05",
  "img_path": "/data/qiuhui/data/adni/images/033_S_1086/2007-12-05/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 41,770 mm³, 11.2% below the reference mean. With a Z-score of -0.32 (37.3th percentile), this represents normal volume ; hippocampal volume measures 6,497 mm³, 6.8% below the reference mean. With a Z-score of -0.58 (28.0th percentile), this represents normal volume ; whole brain volume measures 983,745 mm³, 4.4% below the reference mean. With a Z-score of -0.58 (28.2th percentile), this represents normal volume ; entorhinal cortex volume measures 3,823 mm³, 3.7% below the reference mean. With a Z-score of -0.24 (40.5th percentile), this represents normal volume ; fusiform gyrus volume measures 16,405 mm³, 9.2% below the reference mean. With a Z-score of -0.80 (21.3th percentile), this represents normal volume ; middle temporal gyrus volume measures 21,708 mm³, 7.6% above the reference mean. With a Z-score of 0.68 (75.3th percentile), this represents normal volume . ",
  "text_data": "Age is 82.4 years. Gender is Male. Education: 20 years. MMSE: 29.0. Logical Memory: 13.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volume measures (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) fall within normal ranges based on Z-scores and percentiles. The MMSE score of 29 is within the normal range (≥26), and there is no significant atrophy or structural abnormality suggestive of cognitive impairment.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T05:27:51.428556"
}