{
  "ptid_time": "072_S_4390_2012-06-14",
  "img_path": "/data/qiuhui/data/adni/images/072_S_4390/2012-06-14/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 17,290 mm³, 38.4% below the reference mean. With a Z-score of -0.88 (19.0th percentile), this represents normal volume ; hippocampal volume measures 6,760 mm³, 5.0% below the reference mean. With a Z-score of -0.46 (32.4th percentile), this represents normal volume ; whole brain volume measures 910,852 mm³, 6.5% below the reference mean. With a Z-score of -0.82 (20.5th percentile), this represents normal volume ; entorhinal cortex volume measures 3,303 mm³, 10.1% below the reference mean. With a Z-score of -0.62 (26.8th percentile), this represents normal volume ; fusiform gyrus volume measures 16,121 mm³, 5.2% below the reference mean. With a Z-score of -0.48 (31.7th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,370 mm³, 1.0% above the reference mean. With a Z-score of 0.09 (53.6th percentile), this represents normal volume . ",
  "text_data": "Age is 76.7 years. Gender is Female. Education: 12 years. MMSE: 28.0. MoCA: 25.0. 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. Cognitive scores (MMSE 28, MoCA 25) are within normal limits for age, and the absence of APOE4 further reduces Alzheimer's risk.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T09:20:30.899547"
}