{
  "ptid_time": "072_S_2164_2015-02-09",
  "img_path": "/data/qiuhui/data/adni/images/072_S_2164/2015-02-09/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 17,672 mm³, 37.0% below the reference mean. With a Z-score of -0.85 (19.8th percentile), this represents normal volume ; hippocampal volume measures 7,727 mm³, 8.6% above the reference mean. With a Z-score of 0.79 (78.5th percentile), this represents normal volume ; whole brain volume measures 1,063,490 mm³, 9.1% above the reference mean. With a Z-score of 1.15 (87.4th percentile), this represents mild enlargement; entorhinal cortex volume measures 4,024 mm³, 9.6% above the reference mean. With a Z-score of 0.59 (72.1th percentile), this represents normal volume ; fusiform gyrus volume measures 20,887 mm³, 22.8% above the reference mean. With a Z-score of 2.07 (98.1th percentile), this represents significant enlargement; middle temporal gyrus volume measures 19,525 mm³, 1.9% above the reference mean. With a Z-score of 0.16 (56.4th percentile), this represents normal volume . ",
  "text_data": "Age is 74.9 years. Gender is Female. Education: 16 years. MMSE: 29.0. MoCA: 29.0. Logical Memory: 16.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.11 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measurements are all within normal or above-average ranges, with no significant atrophy in key regions like the hippocampus or entorhinal cortex. Cognitive test scores (MMSE 29, MoCA 29) are in the normal range, and amyloid PET (AV45) is normal, with no APOE4 risk alleles.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T09:14:57.410585"
}