{
  "ptid_time": "067_S_2301_2012-03-02",
  "img_path": "/data/qiuhui/data/adni/images/067_S_2301/2012-03-02/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 14,717 mm³, 51.0% below the reference mean. With a Z-score of -1.21 (11.3th percentile), this represents mild atrophy; hippocampal volume measures 9,291 mm³, 15.7% above the reference mean. With a Z-score of 1.57 (94.2th percentile), this represents moderate enlargement; whole brain volume measures 1,122,880 mm³, 1.0% below the reference mean. With a Z-score of -0.15 (44.2th percentile), this represents normal volume ; entorhinal cortex volume measures 3,867 mm³, 9.3% below the reference mean. With a Z-score of -0.64 (26.0th percentile), this represents normal volume ; fusiform gyrus volume measures 18,968 mm³, 4.7% below the reference mean. With a Z-score of -0.39 (34.7th percentile), this represents normal volume ; middle temporal gyrus volume measures 21,468 mm³, 4.2% below the reference mean. With a Z-score of -0.35 (36.4th percentile), this represents normal volume . ",
  "text_data": "Age is 66.7 years. Gender is Male. Education: 19 years. Handedness: Right. Race: White. Medical history: Dermatologic-Connective Tissue; Musculoskeletal; Allergies or Drug Sensitivities; Smoking. MMSE: 30.0. MoCA: 24.0. Logical Memory: 10.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The patient shows mild ventricular atrophy but otherwise normal brain volumes, including hippocampal enlargement (uncommon in Alzheimer's). Cognitive scores are mixed (MMSE normal, MoCA slightly below typical cutoff of 26), and there is no APOE4 risk allele. No significant atrophy in Alzheimer’s-sensitive regions (entorhinal cortex, fusiform gyrus, middle temporal gyrus) is observed.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (MoCA score is borderline, but structural imaging and lack of APOE4 support normal cognition)",
  "timestamp": "2025-07-26T08:34:19.443140"
}