{
  "ptid_time": "123_S_4170_2012-09-12",
  "img_path": "/data/qiuhui/data/adni/images/123_S_4170/2012-09-12/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 10,926 mm³, 51.1% below the reference mean. With a Z-score of -1.28 (10.1th percentile), this represents mild atrophy; whole brain volume measures 1,106,920 mm³, 7.6% above the reference mean. With a Z-score of 0.94 (82.7th percentile), this represents normal volume ; entorhinal cortex volume measures 4,155 mm³, 6.7% above the reference mean. With a Z-score of 0.52 (69.9th percentile), this represents normal volume ; fusiform gyrus volume measures 19,004 mm³, 4.4% above the reference mean. With a Z-score of 0.49 (68.8th percentile), this represents normal volume ; middle temporal gyrus volume measures 22,853 mm³, 11.4% above the reference mean. With a Z-score of 1.01 (84.4th percentile), this represents mild enlargement. ",
  "text_data": "Age is 66.6 years. Gender is Female. Education: 18 years. MMSE: 30.0. MoCA: 27.0. Logical Memory: 15.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain imaging shows mild ventricular atrophy but otherwise normal or slightly enlarged volumes in key regions (entorhinal cortex, fusiform gyrus, middle temporal gyrus). Cognitive scores (MMSE 30, MoCA 27) are within normal limits, though MoCA is borderline. APOE4 carrier status raises some risk but current imaging and cognitive performance do not suggest significant impairment.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to borderline MoCA and APOE4 status, but imaging and MMSE support normal cognition)",
  "timestamp": "2025-07-26T12:32:23.052170"
}