{
  "ptid_time": "116_S_1249_2008-02-06",
  "img_path": "/data/qiuhui/data/adni/images/116_S_1249/2008-02-06/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 16,736 mm³, 40.4% below the reference mean. With a Z-score of -0.92 (17.8th percentile), this represents normal volume ; hippocampal volume measures 7,013 mm³, 1.4% below the reference mean. With a Z-score of -0.13 (44.8th percentile), this represents normal volume ; whole brain volume measures 905,258 mm³, 7.1% below the reference mean. With a Z-score of -0.90 (18.5th percentile), this represents normal volume ; entorhinal cortex volume measures 3,458 mm³, 5.9% below the reference mean. With a Z-score of -0.36 (36.0th percentile), this represents normal volume ; fusiform gyrus volume measures 12,403 mm³, 27.1% below the reference mean. With a Z-score of -2.47 (0.7th percentile), this represents significant atrophy; middle temporal gyrus volume measures 15,643 mm³, 18.4% below the reference mean. With a Z-score of -1.60 (5.5th percentile), this represents moderate atrophy. ",
  "text_data": "Age is 71.8 years. Gender is Female. Education: 15 years. MMSE: 30.0. Logical Memory: 15.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The fusiform gyrus and middle temporal gyrus show significant and moderate atrophy, respectively, which are regions often affected in neurodegenerative diseases. However, hippocampal and entorhinal cortex volumes are within normal ranges, and the MMSE score of 30 is intact, suggesting no significant cognitive impairment at this time.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to isolated atrophy in temporal regions but preserved cognition and other key structures)",
  "timestamp": "2025-07-26T12:03:00.406939"
}