{
  "ptid_time": "136_S_0107_2006-08-29",
  "img_path": "/data/qiuhui/data/adni/images/136_S_0107/2006-08-29/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 22,608 mm³, 1.2% above the reference mean. With a Z-score of 0.03 (51.2th percentile), this represents normal volume ; hippocampal volume measures 7,296 mm³, 5.1% below the reference mean. With a Z-score of -0.57 (28.5th percentile), this represents normal volume ; whole brain volume measures 1,071,410 mm³, 4.1% above the reference mean. With a Z-score of 0.51 (69.5th percentile), this represents normal volume ; entorhinal cortex volume measures 4,540 mm³, 16.6% above the reference mean. With a Z-score of 1.29 (90.1th percentile), this represents mild enlargement; fusiform gyrus volume measures 17,040 mm³, 6.4% below the reference mean. With a Z-score of -0.72 (23.5th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,710 mm³, 3.9% below the reference mean. With a Z-score of -0.35 (36.3th percentile), this represents normal volume . ",
  "text_data": "Age is 61.2 years. Gender is Female. Education: 19 years. MMSE: 28.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain volume measurements are largely within normal ranges, with only mild deviations (e.g., slightly reduced hippocampal volume and mildly enlarged entorhinal cortex). The MMSE score of 28 is within the normal range, and the absence of APOE4 alleles reduces genetic risk. No significant atrophy or cognitive impairment is evident.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T15:55:18.609727"
}