{
  "ptid_time": "130_S_4417_2014-02-13",
  "img_path": "/data/qiuhui/data/adni/images/130_S_4417/2014-02-13/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 55,949 mm³, 45.3% above the reference mean. With a Z-score of 1.08 (86.1th percentile), this represents mild enlargement; hippocampal volume measures 7,954 mm³, 5.2% above the reference mean. With a Z-score of 0.51 (69.5th percentile), this represents normal volume ; whole brain volume measures 1,111,000 mm³, 2.9% above the reference mean. With a Z-score of 0.38 (64.8th percentile), this represents normal volume ; entorhinal cortex volume measures 4,222 mm³, 3.0% above the reference mean. With a Z-score of 0.20 (58.0th percentile), this represents normal volume ; fusiform gyrus volume measures 19,676 mm³, 4.4% above the reference mean. With a Z-score of 0.38 (64.8th percentile), this represents normal volume ; middle temporal gyrus volume measures 21,975 mm³, 3.0% above the reference mean. With a Z-score of 0.27 (60.6th percentile), this represents normal volume . ",
  "text_data": "Age is 76.4 years. Gender is Male. Education: 16 years. MMSE: 30.0. MoCA: 24.0. Logical Memory: 9.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.14 SUVR (normal ); Amyloid beta: 686.10 pg/mL (normal ); Total tau: 228.10 pg/mL (normal ); Phosphorylated tau: 20.60 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The brain volume data shows mild ventricular enlargement but otherwise normal volumes in key regions (hippocampus, entorhinal cortex, fusiform gyrus, middle temporal gyrus). Biomarkers (Aβ, T-tau, P-tau, AV45) are normal, and cognitive scores (MMSE 30, MoCA 24) are within normal to borderline range for age.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** Medium (MoCA 24 is slightly below typical cutoff for normality, but other markers are unremarkable)",
  "timestamp": "2025-07-26T14:44:42.765735"
}