{
  "ptid_time": "073_S_4360_2013-02-25",
  "img_path": "/data/qiuhui/data/adni/images/073_S_4360/2013-02-25/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 18,111 mm³, 18.9% below the reference mean. With a Z-score of -0.47 (31.8th percentile), this represents normal volume ; hippocampal volume measures 9,150 mm³, 19.1% above the reference mean. With a Z-score of 2.14 (98.4th percentile), this represents significant enlargement; whole brain volume measures 1,107,130 mm³, 7.6% above the reference mean. With a Z-score of 0.94 (82.7th percentile), this represents normal volume ; entorhinal cortex volume measures 4,508 mm³, 15.8% above the reference mean. With a Z-score of 1.22 (89.0th percentile), this represents mild enlargement; fusiform gyrus volume measures 20,327 mm³, 11.6% above the reference mean. With a Z-score of 1.31 (90.5th percentile), this represents mild enlargement; middle temporal gyrus volume measures 19,594 mm³, 4.5% below the reference mean. With a Z-score of -0.40 (34.4th percentile), this represents normal volume . ",
  "text_data": "Age is 60.5 years. Gender is Female. Education: 20 years. MMSE: 30.0. MoCA: 28.0. Logical Memory: 17.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measurements show normal or above-average volumes in key regions, including the hippocampus, entorhinal cortex, and fusiform gyrus, with no significant atrophy. Cognitive scores (MMSE 30, MoCA 28) are within the normal range, and the absence of APOE4 further reduces Alzheimer's risk.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T09:44:09.047434"
}