{
  "ptid_time": "127_S_0393_2006-11-21",
  "img_path": "/data/qiuhui/data/adni/images/127_S_0393/2006-11-21/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 48,675 mm³, 31.7% above the reference mean. With a Z-score of 0.86 (80.4th percentile), this represents normal volume ; hippocampal volume measures 6,262 mm³, 3.6% below the reference mean. With a Z-score of -0.29 (38.7th percentile), this represents normal volume ; whole brain volume measures 880,353 mm³, 5.2% below the reference mean. With a Z-score of -0.62 (26.8th percentile), this represents normal volume ; entorhinal cortex volume measures 3,293 mm³, 4.9% below the reference mean. With a Z-score of -0.26 (39.6th percentile), this represents normal volume ; fusiform gyrus volume measures 17,085 mm³, 6.1% above the reference mean. With a Z-score of 0.46 (67.5th percentile), this represents normal volume ; middle temporal gyrus volume measures 17,708 mm³, 1.8% below the reference mean. With a Z-score of -0.16 (43.7th percentile), this represents normal volume . ",
  "text_data": "Age is 86.7 years. Gender is Female. Education: 16 years. MMSE: 28.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "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. The MMSE score of 28 is within the normal range (≥26), and the absence of APOE4 further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T12:59:22.611320"
}