{
  "ptid_time": "031_S_4005_2014-05-13",
  "img_path": "/data/qiuhui/data/adni/images/031_S_4005/2014-05-13/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 47,988 mm³, 24.6% above the reference mean. With a Z-score of 0.59 (72.2th percentile), this represents normal volume ; hippocampal volume measures 7,083 mm³, 6.3% below the reference mean. With a Z-score of -0.61 (26.9th percentile), this represents normal volume ; whole brain volume measures 1,143,830 mm³, 6.0% above the reference mean. With a Z-score of 0.77 (78.1th percentile), this represents normal volume ; entorhinal cortex volume measures 4,369 mm³, 6.5% above the reference mean. With a Z-score of 0.44 (67.1th percentile), this represents normal volume ; fusiform gyrus volume measures 21,797 mm³, 15.7% above the reference mean. With a Z-score of 1.34 (91.0th percentile), this represents mild enlargement; middle temporal gyrus volume measures 21,274 mm³, 0.3% below the reference mean. With a Z-score of -0.03 (48.9th percentile), this represents normal volume . ",
  "text_data": "Age is 73.5 years. Gender is Male. Education: 16 years. MMSE: 30.0. MoCA: 29.0. Logical Memory: 5.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (hippocampus, entorhinal cortex, fusiform gyrus, etc.) are within normal ranges or mildly enlarged, with no significant atrophy. Cognitive scores (MMSE 30, MoCA 29) are intact, and APOE4 status (heterozygous) does not override the absence of clinical or structural deficits.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T04:43:53.807526"
}