{
  "ptid_time": "011_S_0023_2012-12-27",
  "img_path": "/data/qiuhui/data/adni/images/011_S_0023/2012-12-27/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 30,336 mm³, 21.2% below the reference mean. With a Z-score of -0.51 (30.5th percentile), this represents normal volume ; hippocampal volume measures 7,672 mm³, 1.5% above the reference mean. With a Z-score of 0.15 (55.8th percentile), this represents normal volume ; whole brain volume measures 1,026,760 mm³, 4.9% below the reference mean. With a Z-score of -0.63 (26.3th percentile), this represents normal volume ; entorhinal cortex volume measures 3,925 mm³, 4.3% below the reference mean. With a Z-score of -0.29 (38.6th percentile), this represents normal volume ; fusiform gyrus volume measures 19,019 mm³, 1.0% above the reference mean. With a Z-score of 0.08 (53.3th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,666 mm³, 7.8% below the reference mean. With a Z-score of -0.70 (24.0th percentile), this represents normal volume . ",
  "text_data": "Age is 78.7 years. Gender is Male. Education: 14 years. MMSE: 28.0. MoCA: 26.0. Logical Memory: 17.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.13 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) are within normal ranges based on Z-scores and percentiles. Cognitive scores (MMSE: 28, MoCA: 26) are also within normal limits, and there is no evidence of amyloid pathology (AV45: normal). APOE4-negative status further reduces Alzheimer's risk.  \n\nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-25T22:42:36.810586"
}