{
  "ptid_time": "099_S_4104_2012-07-11",
  "img_path": "/data/qiuhui/data/adni/images/099_S_4104/2012-07-11/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 24,695 mm³, 35.9% below the reference mean. With a Z-score of -0.86 (19.5th percentile), this represents normal volume ; hippocampal volume measures 6,846 mm³, 9.4% below the reference mean. With a Z-score of -0.92 (17.9th percentile), this represents normal volume ; whole brain volume measures 1,021,660 mm³, 5.3% below the reference mean. With a Z-score of -0.69 (24.4th percentile), this represents normal volume ; entorhinal cortex volume measures 4,288 mm³, 4.6% above the reference mean. With a Z-score of 0.31 (62.2th percentile), this represents normal volume ; fusiform gyrus volume measures 17,248 mm³, 8.4% below the reference mean. With a Z-score of -0.72 (23.6th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,342 mm³, 4.7% below the reference mean. With a Z-score of -0.42 (33.7th percentile), this represents normal volume . ",
  "text_data": "Age is 73.4 years. Gender is Male. Education: 20 years. MMSE: 27.0. MoCA: 25.0. Logical Memory: 15.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volume measures (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) fall within normal ranges based on Z-scores and percentiles. Cognitive scores (MMSE 27, MoCA 25) are within normal limits for age, and the absence of APOE4 further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T11:06:09.913934"
}