{
  "ptid_time": "003_S_4288_2012-11-01",
  "img_path": "/data/qiuhui/data/adni/images/003_S_4288/2012-11-01/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 27,914 mm³, 0.5% below the reference mean. With a Z-score of -0.01 (49.5th percentile), this represents normal volume ; hippocampal volume measures 7,131 mm³, 0.2% above the reference mean. With a Z-score of 0.02 (50.8th percentile), this represents normal volume ; whole brain volume measures 929,110 mm³, 4.7% below the reference mean. With a Z-score of -0.59 (27.8th percentile), this represents normal volume ; entorhinal cortex volume measures 3,632 mm³, 1.1% below the reference mean. With a Z-score of -0.07 (47.3th percentile), this represents normal volume ; fusiform gyrus volume measures 14,501 mm³, 14.8% below the reference mean. With a Z-score of -1.34 (8.9th percentile), this represents mild atrophy; middle temporal gyrus volume measures 18,493 mm³, 3.5% below the reference mean. With a Z-score of -0.31 (38.0th percentile), this represents normal volume . ",
  "text_data": "Age is 73.5 years. Gender is Female. Education: 14 years. MMSE: 29.0. MoCA: 27.0. Logical Memory: 10.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measurements show mostly normal values, with only mild atrophy in the fusiform gyrus (Z-score -1.34, 8.9th percentile). Cognitive scores (MMSE 29, MoCA 27) are within normal ranges, and there is no APOE4 risk allele. No significant hippocampal or entorhinal atrophy is present.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-25T20:51:04.730909"
}