{
  "ptid_time": "136_S_0107_2007-09-10",
  "img_path": "/data/qiuhui/data/adni/images/136_S_0107/2007-09-10/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 21,646 mm³, 3.1% below the reference mean. With a Z-score of -0.08 (46.9th percentile), this represents normal volume ; hippocampal volume measures 7,479 mm³, 2.7% below the reference mean. With a Z-score of -0.30 (38.2th percentile), this represents normal volume ; whole brain volume measures 1,085,870 mm³, 5.5% above the reference mean. With a Z-score of 0.69 (75.4th percentile), this represents normal volume ; entorhinal cortex volume measures 4,693 mm³, 20.6% above the reference mean. With a Z-score of 1.59 (94.4th percentile), this represents moderate enlargement; fusiform gyrus volume measures 17,058 mm³, 6.3% below the reference mean. With a Z-score of -0.71 (23.8th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,857 mm³, 3.2% below the reference mean. With a Z-score of -0.29 (38.7th percentile), this represents normal volume . ",
  "text_data": "Age is 62.2 years. Gender is Female. Education: 19 years. MMSE: 29.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measurements are largely within normal ranges, with only the entorhinal cortex showing moderate enlargement (likely not pathological). The MMSE score of 29 is within the normal range, and the absence of APOE4 alleles reduces genetic risk. No significant atrophy or cognitive deficits are evident.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T15:55:30.495113"
}