{
  "ptid_time": "123_S_4780_2014-07-24",
  "img_path": "/data/qiuhui/data/adni/images/123_S_4780/2014-07-24/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 31,572 mm³, 12.5% above the reference mean. With a Z-score of 0.29 (61.3th percentile), this represents normal volume ; hippocampal volume measures 7,134 mm³, 0.3% above the reference mean. With a Z-score of 0.03 (51.0th percentile), this represents normal volume ; whole brain volume measures 976,246 mm³, 0.2% above the reference mean. With a Z-score of 0.02 (50.8th percentile), this represents normal volume ; entorhinal cortex volume measures 4,020 mm³, 9.5% above the reference mean. With a Z-score of 0.58 (71.9th percentile), this represents normal volume ; fusiform gyrus volume measures 17,060 mm³, 0.3% above the reference mean. With a Z-score of 0.03 (51.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,340 mm³, 0.9% above the reference mean. With a Z-score of 0.08 (53.1th percentile), this represents normal volume . ",
  "text_data": "Age is 72.2 years. Gender is Female. Education: 16 years. MMSE: 30.0. MoCA: 29.0. Logical Memory: 10.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.15 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) are within normal ranges, with Z-scores close to or slightly above the mean. Cognitive scores (MMSE 30, MoCA 29) are intact, and amyloid PET (AV45) is normal. No APOE4 risk allele is present.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T12:33:49.015704"
}