{
  "ptid_time": "073_S_0089_2012-10-09",
  "img_path": "/data/qiuhui/data/adni/images/073_S_0089/2012-10-09/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 22,647 mm³, 41.2% below the reference mean. With a Z-score of -0.99 (16.2th percentile), this represents normal volume ; hippocampal volume measures 7,450 mm³, 1.4% below the reference mean. With a Z-score of -0.14 (44.4th percentile), this represents normal volume ; whole brain volume measures 1,082,170 mm³, 0.3% above the reference mean. With a Z-score of 0.03 (51.3th percentile), this represents normal volume ; entorhinal cortex volume measures 4,314 mm³, 5.2% above the reference mean. With a Z-score of 0.35 (63.8th percentile), this represents normal volume ; fusiform gyrus volume measures 23,275 mm³, 23.6% above the reference mean. With a Z-score of 2.01 (97.8th percentile), this represents significant enlargement; middle temporal gyrus volume measures 24,015 mm³, 12.5% above the reference mean. With a Z-score of 1.13 (87.0th percentile), this represents mild enlargement. ",
  "text_data": "Age is 72.1 years. Gender is Male. Education: 20 years. MMSE: 30.0. MoCA: 27.0. Logical Memory: 17.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 0.97 SUVR (normal ); Amyloid beta: 1314.00 pg/mL (normal ); Total tau: 168.70 pg/mL (normal ); Phosphorylated tau: 16.35 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex) are within normal ranges, with some mild enlargement in the fusiform gyrus and middle temporal gyrus. Cognitive scores (MMSE 30, MoCA 27) are normal, and biomarkers (Aβ, T-tau, P-tau, AV45) show no signs of Alzheimer's pathology.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T09:29:08.195654"
}