{
  "ptid_time": "099_S_6396_2018-06-05",
  "img_path": "/data/qiuhui/data/adni/images/099_S_6396/2018-06-05/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 17,980 mm³, 35.9% below the reference mean. With a Z-score of -0.82 (20.5th percentile), this represents normal volume ; hippocampal volume measures 7,748 mm³, 8.9% above the reference mean. With a Z-score of 0.82 (79.3th percentile), this represents normal volume ; whole brain volume measures 946,779 mm³, 2.9% below the reference mean. With a Z-score of -0.36 (35.9th percentile), this represents normal volume ; entorhinal cortex volume measures 3,968 mm³, 8.0% above the reference mean. With a Z-score of 0.49 (68.9th percentile), this represents normal volume ; fusiform gyrus volume measures 17,528 mm³, 3.0% above the reference mean. With a Z-score of 0.28 (60.9th percentile), this represents normal volume ; middle temporal gyrus volume measures 21,191 mm³, 10.5% above the reference mean. With a Z-score of 0.92 (82.0th percentile), this represents normal volume . ",
  "text_data": "Age is 75.3 years. Gender is Female. Education: 14 years. Handedness: Right. Race: White. MMSE: 29.0. MoCA: 26.0. Logical Memory: 16.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 0.98 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 29, MoCA 26) are also within normal limits for age, and there is no evidence of amyloid pathology (AV45 normal).  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T11:12:41.834843"
}