{
  "ptid_time": "023_S_4448_2016-05-12",
  "img_path": "/data/qiuhui/data/adni/images/023_S_4448/2016-05-12/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 16,157 mm³, 27.7% below the reference mean. With a Z-score of -0.69 (24.4th percentile), this represents normal volume ; hippocampal volume measures 7,961 mm³, 3.6% above the reference mean. With a Z-score of 0.40 (65.7th percentile), this represents normal volume ; whole brain volume measures 1,048,620 mm³, 1.9% above the reference mean. With a Z-score of 0.24 (59.3th percentile), this represents normal volume ; entorhinal cortex volume measures 4,124 mm³, 5.9% above the reference mean. With a Z-score of 0.46 (67.7th percentile), this represents normal volume ; fusiform gyrus volume measures 19,380 mm³, 6.4% above the reference mean. With a Z-score of 0.72 (76.5th percentile), this represents normal volume ; middle temporal gyrus volume measures 22,359 mm³, 9.0% above the reference mean. With a Z-score of 0.80 (78.7th percentile), this represents normal volume . ",
  "text_data": "Age is 67.8 years. Gender is Female. Education: 16 years. MMSE: 30.0. MoCA: 28.0. Logical Memory: 14.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.03 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volume measures (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, middle temporal gyrus) are within normal ranges, with Z-scores and percentiles indicating no significant atrophy. Cognitive scores (MMSE 30, MoCA 28) are also within normal limits, and amyloid PET (AV45) is normal.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T03:05:42.055559"
}