{
  "ptid_time": "031_S_4194_2011-09-01",
  "img_path": "/data/qiuhui/data/adni/images/031_S_4194/2011-09-01/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 11,687 mm³, 61.1% below the reference mean. With a Z-score of -1.45 (7.3th percentile), this represents mild atrophy; whole brain volume measures 1,089,460 mm³, 4.0% below the reference mean. With a Z-score of -0.56 (28.7th percentile), this represents normal volume ; entorhinal cortex volume measures 4,380 mm³, 2.7% above the reference mean. With a Z-score of 0.19 (57.5th percentile), this represents normal volume ; fusiform gyrus volume measures 15,855 mm³, 20.4% below the reference mean. With a Z-score of -1.69 (4.5th percentile), this represents moderate atrophy; middle temporal gyrus volume measures 18,184 mm³, 18.9% below the reference mean. With a Z-score of -1.55 (6.0th percentile), this represents moderate atrophy. ",
  "text_data": "Age is 62.0 years. Gender is Male. Education: 16 years. Handedness: Right. Race: White. Medical history: Hepatic; Renal-Genitourinary; Allergies or Drug Sensitivities; Major Surgical Procedures. MMSE: 30.0. MoCA: 25.0. Logical Memory: 8.0. Laboratory findings: Monocytes: 10.20 (significant elevated); Total Bilirubin: 1.60 (profound elevated); Direct Bilirubin: 0.30 (significant elevated). APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 0.99 SUVR (normal ); Total tau: 236.10 pg/mL (normal ); Phosphorylated tau: 21.76 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The imaging data shows mild to moderate atrophy in the fusiform gyrus and middle temporal gyrus, which are regions often affected in early neurodegenerative processes. However, cognitive scores (MMSE 30, MoCA 25) are within normal to borderline range, and CSF/AV45 biomarkers are normal, suggesting no significant functional impairment or amyloid pathology.  \n\n**Diagnosis:** **Mild Cognitive Impairment (MCI)**  \n**Confidence:** **Medium** (due to structural atrophy without clear functional decline or biomarker support for Alzheimer’s pathology)",
  "timestamp": "2025-07-26T04:47:24.313088"
}