{
  "ptid_time": "130_S_0289_2007-03-19",
  "img_path": "/data/qiuhui/data/adni/images/130_S_0289/2007-03-19/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 46,831 mm³, 56.0% above the reference mean. With a Z-score of 1.33 (90.8th percentile), this represents mild enlargement; hippocampal volume measures 8,050 mm³, 0.3% above the reference mean. With a Z-score of 0.03 (51.1th percentile), this represents normal volume ; whole brain volume measures 1,001,310 mm³, 11.7% below the reference mean. With a Z-score of -1.66 (4.8th percentile), this represents moderate atrophy; entorhinal cortex volume measures 3,782 mm³, 11.3% below the reference mean. With a Z-score of -0.78 (21.7th percentile), this represents normal volume ; fusiform gyrus volume measures 15,699 mm³, 21.1% below the reference mean. With a Z-score of -1.76 (3.9th percentile), this represents moderate atrophy; middle temporal gyrus volume measures 22,365 mm³, 0.2% below the reference mean. With a Z-score of -0.02 (49.3th percentile), this represents normal volume . ",
  "text_data": "Age is 68.7 years. Gender is Male. Education: 16 years. MMSE: 28.0. Logical Memory: 9.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The data shows moderate whole brain atrophy and fusiform gyrus atrophy, along with mild ventricular enlargement, which are concerning for neurodegenerative changes. However, hippocampal and entorhinal cortex volumes are normal, and the MMSE score of 28 is within the normal range, suggesting preserved cognitive function.  \n**Diagnosis:** **CN (Cognitively Normal)**  \n**Confidence:** **Medium** (due to conflicting imaging findings—some atrophy but no clear cognitive impairment)",
  "timestamp": "2025-07-26T14:25:08.491272"
}