{
  "ptid_time": "135_S_4489_2019-05-29",
  "img_path": "/data/qiuhui/data/adni/images/135_S_4489/2019-05-29/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 35,982 mm³, 23.5% below the reference mean. With a Z-score of -0.68 (24.8th percentile), this represents normal volume ; hippocampal volume measures 7,537 mm³, 8.2% above the reference mean. With a Z-score of 0.71 (76.0th percentile), this represents normal volume ; whole brain volume measures 1,061,780 mm³, 3.2% above the reference mean. With a Z-score of 0.42 (66.1th percentile), this represents normal volume ; entorhinal cortex volume measures 3,947 mm³, 0.6% below the reference mean. With a Z-score of -0.04 (48.6th percentile), this represents normal volume ; fusiform gyrus volume measures 19,285 mm³, 6.7% above the reference mean. With a Z-score of 0.58 (72.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 23,105 mm³, 14.5% above the reference mean. With a Z-score of 1.30 (90.4th percentile), this represents mild enlargement. ",
  "text_data": "Age is 81.7 years. Gender is Male. Education: 20 years. MMSE: 30.0. MoCA: 26.0. Logical Memory: 15.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.38 SUVR (significant elevated). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (hippocampus, entorhinal cortex, fusiform gyrus, etc.) are within normal ranges or even slightly above average, with no significant atrophy. Cognitive scores (MMSE 30, MoCA 26) are normal for age, and there is no genetic (APOE4-negative) or biomarker (AV45 elevated but not definitive alone) evidence strongly supporting neurodegeneration.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T15:37:48.737684"
}