{
  "ptid_time": "128_S_1406_2010-06-07",
  "img_path": "/data/qiuhui/data/adni/images/128_S_1406/2010-06-07/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 16,149 mm³, 27.7% below the reference mean. With a Z-score of -0.69 (24.4th percentile), this represents normal volume ; hippocampal volume measures 7,534 mm³, 2.0% below the reference mean. With a Z-score of -0.22 (41.3th percentile), this represents normal volume ; whole brain volume measures 1,071,940 mm³, 4.2% above the reference mean. With a Z-score of 0.52 (69.8th percentile), this represents normal volume ; entorhinal cortex volume measures 4,324 mm³, 11.1% above the reference mean. With a Z-score of 0.86 (80.5th percentile), this represents normal volume ; fusiform gyrus volume measures 17,739 mm³, 2.6% below the reference mean. With a Z-score of -0.29 (38.5th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,784 mm³, 1.3% above the reference mean. With a Z-score of 0.11 (54.6th percentile), this represents normal volume . ",
  "text_data": "Age is 64.1 years. Gender is Female. Education: 18 years. MMSE: 29.0. Logical Memory: 15.0. 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 29 is within the normal range (≥26), and there is no APOE4 genetic risk factor present.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T13:54:43.380090"
}