{
  "ptid_time": "135_S_5113_2014-04-02",
  "img_path": "/data/qiuhui/data/adni/images/135_S_5113/2014-04-02/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 31,469 mm³, 4.8% above the reference mean. With a Z-score of 0.11 (54.5th percentile), this represents normal volume ; hippocampal volume measures 9,195 mm³, 14.6% above the reference mean. With a Z-score of 1.45 (92.7th percentile), this represents mild enlargement; whole brain volume measures 1,193,620 mm³, 5.2% above the reference mean. With a Z-score of 0.74 (76.9th percentile), this represents normal volume ; entorhinal cortex volume measures 4,828 mm³, 13.3% above the reference mean. With a Z-score of 0.92 (82.1th percentile), this represents normal volume ; fusiform gyrus volume measures 23,084 mm³, 15.9% above the reference mean. With a Z-score of 1.33 (90.8th percentile), this represents mild enlargement; middle temporal gyrus volume measures 21,822 mm³, 2.6% below the reference mean. With a Z-score of -0.22 (41.4th percentile), this represents normal volume . ",
  "text_data": "Age is 66.1 years. Gender is Male. Education: 16 years. MMSE: 29.0. MoCA: 25.0. Logical Memory: 12.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measurements show normal to mildly enlarged structures, with no significant atrophy in key regions like the hippocampus and entorhinal cortex. Cognitive scores (MMSE 29, MoCA 25) are within normal to borderline range, and the absence of APOE4 further reduces Alzheimer's risk.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T15:47:46.471220"
}