{
  "ptid_time": "021_S_4558_2013-04-09",
  "img_path": "/data/qiuhui/data/adni/images/021_S_4558/2013-04-09/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 23,152 mm³, 17.5% below the reference mean. With a Z-score of -0.40 (34.4th percentile), this represents normal volume ; hippocampal volume measures 7,331 mm³, 3.0% above the reference mean. With a Z-score of 0.28 (61.0th percentile), this represents normal volume ; whole brain volume measures 1,006,170 mm³, 3.2% above the reference mean. With a Z-score of 0.41 (65.8th percentile), this represents normal volume ; entorhinal cortex volume measures 3,322 mm³, 9.6% below the reference mean. With a Z-score of -0.59 (27.9th percentile), this represents normal volume ; fusiform gyrus volume measures 14,802 mm³, 13.0% below the reference mean. With a Z-score of -1.18 (11.8th percentile), this represents mild atrophy; middle temporal gyrus volume measures 18,399 mm³, 4.0% below the reference mean. With a Z-score of -0.35 (36.4th percentile), this represents normal volume . ",
  "text_data": "Age is 71.0 years. Gender is Female. Education: 20 years. MMSE: 26.0. MoCA: 22.0. Logical Memory: 10.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume measurements show mostly normal values, with mild atrophy only in the fusiform gyrus. Cognitive scores (MMSE 26, MoCA 22) are slightly below optimal but not severely impaired. APOE4 carrier status increases Alzheimer's risk, but current structural and cognitive findings do not strongly support dementia.  \nDiagnosis: MCI  \nConfidence: Medium",
  "timestamp": "2025-07-26T01:49:13.842589"
}