{
  "ptid_time": "135_S_4722_2016-05-12",
  "img_path": "/data/qiuhui/data/adni/images/135_S_4722/2016-05-12/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 30,624 mm³, 9.1% above the reference mean. With a Z-score of 0.21 (58.3th percentile), this represents normal volume ; hippocampal volume measures 7,843 mm³, 10.2% above the reference mean. With a Z-score of 0.94 (82.6th percentile), this represents normal volume ; whole brain volume measures 1,010,830 mm³, 3.7% above the reference mean. With a Z-score of 0.47 (68.0th percentile), this represents normal volume ; entorhinal cortex volume measures 3,792 mm³, 3.2% above the reference mean. With a Z-score of 0.20 (57.9th percentile), this represents normal volume ; fusiform gyrus volume measures 15,677 mm³, 7.9% below the reference mean. With a Z-score of -0.71 (23.7th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,622 mm³, 2.4% above the reference mean. With a Z-score of 0.20 (58.1th percentile), this represents normal volume . ",
  "text_data": "Age is 72.0 years. Gender is Female. Education: 18 years. MMSE: 30.0. MoCA: 30.0. Logical Memory: 16.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.03 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, middle temporal gyrus) fall within normal ranges based on Z-scores and percentiles. Cognitive assessments (MMSE: 30, MoCA: 30) are intact, and amyloid PET (AV45) is normal. No APOE4 risk allele is present.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T15:42:34.181056"
}