Skip to main content

Table 2 Accuracy of AI-based Risk Prediction Models

From: Application and risk prediction of thrombolytic therapy in cardio-cerebrovascular diseases: a review

First author, year

Risk score/ prediction model/ predictors

Method

Dataset

Observation time

endpoint

Results

Source

size

Aziz F, 2021 [79]

New prediction models

(Important variables:

age, race, smoking status, hypertension, DM, family history of premature CVD, CRD, HR, BP, Killip class, blood glucose, administrations including cardiac catheterization, PCI, ASA, beta-blocker, ACEI, statins, diuretics, oral hypoglycemic agent and insulin)

RF

NCVD registry

12,368

1 year

All-cause mortality:

1) In-hospital

2) at 30-day

3) at 1-year

1) AUC = 0.86; Se = 34.7%; Sp = 96.8%; Acc = 93.5%

2) AUC = 0.83; Se = 37.3%; Sp = 94.9%; Acc = 90.3%

3) AUC = 0.78; Se = 37.3%; Sp = 94.9%; Acc = 82.7%

RFvarImp-SBE-RF

1) AUC = 0.87; Se = 33.7%; Sp = 97.7%; Acc = 94.2%

2) AUC = 0.85; Se = 41.3%; Sp = 93.0%; Acc = 88.9%

3) AUC = 0.80; Se = 46.0%; Sp = 90.1%; Acc = 83.8%

RFE-RF

1) AUC = 0.86; Se = 34.7%; Sp = 96.4%; Acc = 93.1%

2) AUC = 0.82; Se = 38.7%; Sp = 95.2%; Acc = 90.7%

3) AUC = 0.79; Se = 49.2%; Sp = 88.9%; Acc = 83.2%

SVM

1) AUC = 0.86; Se = 61.4%; Sp = 89.2%; Acc = 87.7%

2) AUC = 0.87; Se = 73.3%; Sp = 81.7%; Acc = 81.0%

3) AUC = 0.84; Se = 74.6%; Sp = 79.8%; Acc = 79.1%

SVMvarImp-SBE-SVM

1) AUC = 0.88; Se = 69.3%; Sp = 86.1%; Acc = 85.2%

2) AUC = 0.90; Se = 84.0%; Sp = 79.0%; Acc = 79.4%

3) AUC = 0.84; Se = 75.4%; Sp = 77.3%; Acc = 77.1%

RFE-SVM

1) AUC = 0.85; Se = 72.3%; Sp = 83.8%; Acc = 83.2%

2) AUC = 0.88; Se = 81.3%; Sp = 80.0%; Acc = 80.1%

3) AUC = 0.84; Se = 76.2%; Sp = 79.8%; Acc = 79.3%

LR

1) AUC = 0.88; Se = 71.3%; Sp = 85.0%; Acc = 84.2%

2) AUC = 0.85; Se = 74.7%; Sp = 80.3%; Acc = 79.9%

3) AUC = 0.76; Se = 61.1%; Sp = 79.2%; Acc = 76.6%

LRstepwise-SBE-LR

1) AUC = 0.89; Se = 75.2%; Sp = 84.1%; Acc = 83.6%

2) AUC = 0.85; Se = 74.7%; Sp = 83.4%; Acc = 82.7%

3) AUC = 0.80; Se = 65.9%; Sp = 81.4%; Acc = 79.2%

RFE-LR

1) AUC = 0.87; Se = 66.3%; Sp = 83.4%; Acc = 82.5%

2) AUC = 0.83; Se = 72.0%; Sp = 81.0%; Acc = 80.3%

3) AUC = 0.78; Se = 61.9%; Sp = 80.2%; Acc = 77.6%

TIMI

-

1) AUC = 0.81; Se = 64.4%; Sp = 83.4%; Acc = 82.4%

2) AUC = 0.80; Se = 62.7%; Sp = 83.2%; Acc = 81.6%

3) AUC = 0.76; Se = 48.4%; Sp = 83.7%; Acc = 78.6%

Xu Y, 2022 [80]

New prediction models

(Important variables: triglycerides, Lpa, baseline NIHSS score, hemoglobin, BP, INR, WBC, etc.)

RF

Primary data

345

-

Hemorrhagic transformation

AUC = 0.795; Se = 66.7%; Sp = 80.7%

LR

AUC = 0.703; Se = 60.0%; Sp = 78.0%

SITS-ICH

-

AUC = 0.660

MSS

-

AUC = 0.657

SEDAN

-

AUC = 0.655

Meng Y, 2022 [81]

New clinical model

RF

Primary data

71

-

Hemorrhagic transformation

AUC = 0.556; Se = 33.3%; Sp = 55.6%; Acc = 54.5%; F1 score = 0.067

New radiomics models

Abnormal ROIs: AUC = 0.831; Se = 60.0%; Sp = 88.2%; Acc = 81.8%; F1 score = 0.600

All ROIs: AUC = 0.871; Se = 73.3%; Sp = 88.2%; Acc = 84.8%; F1 score = 0.687

Combined model

AUC = 0.911; Se = 81.0%; Sp = 93.3%; Acc = 89.4%; F1 score = 0.830

Weng ZA, 2022 [82]

New nomogram

(Smoking, NIHSS, BUN/Cr, and NLR)

LR

Primary data

Training group: 387

Testing group: 166

During hospitalization

Any ICH

Training group: AUC = 0.887; calibration plots mean absolute error = 0.025; DCA threshold probabilities = 2.5–57.8%

Testing group: AUC = 0.776; calibration plots mean absolute error = 0.036; DCA threshold probabilities = 5.4–38.2%

MSS

-

Training group: AUC = 0.723

Testing group: AUC = 0.647

GRASPS

-

Training group: AUC = 0.738

Testing group: AUC = 0.671

SPAN-100

-

Training group: AUC = 0.538

Testing group: AUC = 0.552

Zhang K, 2022 [83]

New nomogram

(DM, AF, total cholesterol, fibrous protein, cerebral infarction area, NIHSS score,

onset-to-treatment)

LR

Primary data

Training group: 392

Testing group: 178

During hospitalization

SICH: ECASS II

Training group: AUC = 0.831

Testing group: AUC = 0.889; Sp = 82.3%; Se = 83.3%

Hosmer–Lemeshow test calibration = 7.466

Zhang KJ, 2021 [84]

NT-proBNP

-

Primary data

404

3 months

1) Hemorrhagic transformation

2) 3-month mortality

1) p < 0.001; OR = 1.341

2) p < 0.001; OR = 1.788

New nomogram

(NT-proBNP, NIHSS scores and baseline glucose levels)

LR

Primary data

Training group: 283

Testing group: 121

3 months

Poor 3-month functional outcomes

Training group: AUC = 0.710; Se = 72.3%; Sp = 60.8%

Testing group: AUC = 0.764; Se = 80.3%; Sp = 64.9%

Guo H, 2021 [85]

New nomogram

(AF, baseline glucose level, NLR, and baseline NIHSS)

LR

Primary data

1200

During hospitalization

SICH: ECASS II

AUC = 0.788

Soni M, 2021 [86]

New risk score

(Age > 75 years, BP, severity of stroke, pre-treatment antithrombotic and history of hypertension and hyperlipidemia)

K-means clustering

Primary data

890

During hospitalization

SICH: ECASS II

AUC = 0.75 (continuous risk scoring), 0.71 (risk stratification)

Liu J, 2021 [87]

New radiomic model

LASSO regression

Primary data

109

90 days

1) Hemorrhage expansion (a 33% increase in the hematoma volume)

2) 3-month mortality

3) 3-month mortality/ disability (mRS score 3–6)

1) AUC = 0.85; Se = 82%; Sp = 77%; Acc = 78%

2) AUC = 0.67; OR = 5.17

3) AUC = 0.63; OR = 4.70

After SMOTE data

Training group: 96

Testing group: 23

Training group: 1) AUC = 0.91; Se = 83%; Sp = 89%; Acc = 87%

Testing group: 1) AUC = 0.87; Se = 60%; Sp = 85%; Acc = 74%

Chen Z, 2021 [88]

New radiomic models

LR

Primary data

40

-

1) No recanalization

2) Full recanalization

1) AUC = 0.751; MCC = 0.730

2) AUC = 0.797; MCC = 0.762

ALEM

1) AUC = 0.804; MCC = 765

2) AUC = 0.866; MCC = 0.841

CNN

1) AUC = 0.781; MCC = 0.758

2) AUC = 0.814; MCC = 792

U-NL-NET

1) AUC = 0.844; MCC = 0.827

2) AUC = 0.875; MCC = 0.853

AUNet

1) AUC = 0.875; MCC = 0.851

2) AUC = 0.898; MCC = 0.863

Wang F, 2020 [89]

New prediction models

(Important variables: age, AF, glucose level, NIHSS score, and DNT)

SVM

Primary data

2237

-

SICH

AUC = 0.79

Neural Network

AUC = 0.82

LR

AUC = 0.77

AdaBoost

AUC = 0.77

RF

AUC = 0.76

Bacchi S, 2020 [90]

New prediction models

CNN + ANN CTB + clinical data

Primary data

204

90 days

1) 24-h outcome (based on NIHSS)

2) 90-day outcome (based on mRS)

1) AUC = 0.70; Se = 93%; Sp = 53%; Acc = 71%

2) AUC = 0.75; Se = 56%; Sp = 93%; Acc = 74%

ANN

1) AUC = 0.68; Se = 43%; Sp = 88%; Acc = 68%

2) AUC = 0.61; Se = 81%; Sp = 47%; Acc = 65%

CNN CTB

1) AUC = 0.63; Se = 71%; Sp = 65%; Acc = 68%

2) AUC = 0.54; Se = 88%; Sp = 40%; Acc = 65%

THRIVE

-

1) AUC = 0.63; Se = 43%; Sp = 76%; Acc = 61%

2) AUC = 0.69; Se = 81%; Sp = 47%; Acc = 65%

HAT

-

1) AUC = 0.67; Se = 71%; Sp = 59%; Acc = 65%

2) AUC = 0.63; Se = 56%; Sp = 67%; Acc = 61%

SPAN 100

-

1) AUC = N/A; Se = 21%; Sp = 88%; Acc = 58%

2) AUC = N/A; Se = 100%; Sp = 33%; Acc = 67%

Chung CC, 2020 [91]

New prediction models

(Important variables: BP, HR, glucose level, consciousness level, NIHSS score, and history of DM)

ANN

Primary data

Training group: 157

Testing group: 39

24 h major neurologic improvement (based on mRS)

Training group: AUC = 0.950; Acc = 97.5%

Testing group: AUC = 0.944; Se = 89.8%; Sp = 95.9%; Acc = 94.6%

ANN

3-month outcome (based on mRS)

Training group: AUC = 0.992; Acc = 98.2%

Testing group: AUC = 0.933; Se = 94.3%; Sp = 86.5%; Acc = 88.8%

Bentley P, 2014 [92]

New radiomic models

Automated SVM

Primary data

116

During hospitalization

SICH: NINDS

AUC = 0.744

Manual SVM

AUC = 0.671

SEDAN

-

AUC = 0.626

HAT

-

AUC = 0.629

SEDAN-NIHSS, CT only

-

AUC = 0.720

HAT-NIHSS, CT only

-

AUC = 0.648

  1. DM Diabetes mellitus, CRD Chronic renal disease, HR Heart rate, BP Blood pressure, RF Random Forest, RFvarImp-SBE-RF RF variable importance with sequential backward elimination and RF classifier, RFE-RF Recursive feature elimination with RF classifier, SVM Support Vector Machine, SVMvarImp-SBE-SVM SVM variable importance with sequential backward elimination and SVM classifier, RFE-SVM Recursive feature elimination with SVM classifier, LR Logistic Regression, LRstepwise-SBE-LR LR stepwise feature elimination and LR classifier, RFE- LR Recursive feature elimination with LR classifier, PCI Percutaneous coronary intervention, ASA Acetylsalicylic acid (aspirin), ACEI Angiotensin-converting enzyme inhibitor, NCVD National Cardiovascular Database, NLR neutrophil-to-lymphocyte ratio, AF Atrial fibrillation, AdaBoost Adaptive boosting, ADT Alternating decision tree, PART Pruning rules based classification tree, ACSIS Acute Coronary Syndrome Israeli Survey, PAT Previous antiplatelet therapy, FRT Futile recanalization therapies, ML Machine learning, IVT Intraarterial thrombolysis, mRS Modified Rankin Scale, ROIs Regions of interest, Acc Accuracy, LR Logistic regression method, LASSO Least absolute shrinkage and selection operator, CNN Convolutional neural network, ALEM Adaptive linear ensemble model, DNT Door-to-needle time, U-NL-NET U-Net network with an accelerated non-local module, MCC Matthew’s correlation coefficient, SVM Support vector machines, MCA Middle cerebral artery, ANN Artificial neural networks, CTB Noncontrast CT brain, HIAT Houston Intra-Arterial Therapy score, SMOTE Synthetic minority oversampling technique