{
  "ptid_time": "129_S_2347_2013-04-01",
  "img_path": "/data/qiuhui/data/adni/images/129_S_2347/2013-04-01/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 47,344 mm³, 22.9% above the reference mean. With a Z-score of 0.55 (70.8th percentile), this represents normal volume ; whole brain volume measures 1,130,720 mm³, 4.8% above the reference mean. With a Z-score of 0.62 (73.1th percentile), this represents normal volume ; entorhinal cortex volume measures 3,585 mm³, 12.6% below the reference mean. With a Z-score of -0.85 (19.7th percentile), this represents normal volume ; fusiform gyrus volume measures 18,335 mm³, 2.7% below the reference mean. With a Z-score of -0.23 (41.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 22,912 mm³, 7.4% above the reference mean. With a Z-score of 0.66 (74.6th percentile), this represents normal volume . ",
  "text_data": "Age is 73.0 years. Gender is Male. Education: 18 years. MMSE: 30.0. MoCA: 27.0. Logical Memory: 7.0. APOEε4 alleles: 1.0. Biomarker levels: Florbetapir (AV45): 0.97 SUVR (normal ); Amyloid beta: 1081.00 pg/mL (normal ); Total tau: 300.40 pg/mL (normal ); Phosphorylated tau: 25.62 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain volume measurements are largely within normal ranges, with only the entorhinal cortex showing a mild reduction (12.6% below reference mean, Z-score -0.85). Cognitive scores (MMSE 30, MoCA 27) are intact, and biomarkers (Aβ, T-tau, P-tau, AV45) are normal, ruling out significant Alzheimer's pathology.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T14:13:17.823281"
}