{
  "ptid_time": "136_S_0107_2009-06-02",
  "img_path": "/data/qiuhui/data/adni/images/136_S_0107/2009-06-02/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 22,618 mm³, 1.3% above the reference mean. With a Z-score of 0.03 (51.3th percentile), this represents normal volume ; hippocampal volume measures 7,463 mm³, 2.9% below the reference mean. With a Z-score of -0.32 (37.3th percentile), this represents normal volume ; whole brain volume measures 1,061,030 mm³, 3.1% above the reference mean. With a Z-score of 0.39 (65.0th percentile), this represents normal volume ; entorhinal cortex volume measures 4,215 mm³, 8.3% above the reference mean. With a Z-score of 0.64 (73.9th percentile), this represents normal volume ; fusiform gyrus volume measures 17,354 mm³, 4.7% below the reference mean. With a Z-score of -0.53 (29.8th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,449 mm³, 5.2% below the reference mean. With a Z-score of -0.46 (32.1th percentile), this represents normal volume . ",
  "text_data": "Age is 63.7 years. Gender is Female. Education: 19 years. MMSE: 28.0. Logical Memory: 12.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: All brain volumes (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 alleles further reduces Alzheimer's risk. No significant atrophy or cognitive impairment is evident.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T15:55:45.010227"
}