{
  "ptid_time": "037_S_4028_2012-05-07",
  "img_path": "/data/qiuhui/data/adni/images/037_S_4028/2012-05-07/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 9,466 mm³, 57.6% below the reference mean. With a Z-score of -1.44 (7.5th percentile), this represents mild atrophy; whole brain volume measures 994,208 mm³, 3.4% below the reference mean. With a Z-score of -0.42 (33.6th percentile), this represents normal volume ; entorhinal cortex volume measures 3,368 mm³, 13.5% below the reference mean. With a Z-score of -1.04 (14.8th percentile), this represents mild atrophy; fusiform gyrus volume measures 18,463 mm³, 1.4% above the reference mean. With a Z-score of 0.16 (56.2th percentile), this represents normal volume ; middle temporal gyrus volume measures 17,912 mm³, 12.7% below the reference mean. With a Z-score of -1.13 (12.9th percentile), this represents mild atrophy. ",
  "text_data": "Age is 64.5 years. Gender is Female. Education: 18 years. MMSE: 30.0. MoCA: 30.0. Logical Memory: 15.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The imaging shows mild atrophy in the ventricular volume, entorhinal cortex, and middle temporal gyrus, but whole brain and fusiform gyrus volumes are normal. Cognitive scores (MMSE, MoCA) are intact, and there is no APOE4 risk allele. Mild atrophy in AD-relevant regions (entorhinal cortex, middle temporal gyrus) suggests early neurodegeneration, but preserved cognition indicates no functional impairment.  \nDiagnosis: **MCI** (mild structural changes without cognitive decline, but higher risk of progression)  \nConfidence: **Medium** (imaging suggests early neurodegeneration, but cognitive scores are still normal, making this a borderline case)",
  "timestamp": "2025-07-26T06:39:25.391346"
}