{
  "ptid_time": "012_S_0932_2007-05-02",
  "img_path": "/data/qiuhui/data/adni/images/012_S_0932/2007-05-02/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 46,991 mm³, 22.0% above the reference mean. With a Z-score of 0.53 (70.1th percentile), this represents normal volume ; hippocampal volume measures 7,251 mm³, 4.1% below the reference mean. With a Z-score of -0.40 (34.5th percentile), this represents normal volume ; whole brain volume measures 1,064,280 mm³, 1.4% below the reference mean. With a Z-score of -0.18 (42.8th percentile), this represents normal volume ; entorhinal cortex volume measures 4,215 mm³, 2.8% above the reference mean. With a Z-score of 0.19 (57.5th percentile), this represents normal volume ; fusiform gyrus volume measures 16,700 mm³, 11.4% below the reference mean. With a Z-score of -0.97 (16.7th percentile), this represents normal volume ; middle temporal gyrus volume measures 21,075 mm³, 1.2% below the reference mean. With a Z-score of -0.11 (45.6th percentile), this represents normal volume . ",
  "text_data": "Age is 75.8 years. Gender is Male. Education: 16 years. MMSE: 28.0. 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 reduces genetic risk for Alzheimer's. No significant atrophy or cognitive impairment is evident.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-25T23:07:17.330743"
}