Clinical tools: methods, evidence & limitations

What does verification establish?

Software checks can establish that a stated equation is implemented consistently or that invalid inputs are rejected. They do not automatically establish clinical predictive performance or suitability for the local population. Prospective validation and local calibration are different forms of evidence.

Before using an output

• Check units, gestation and the permitted measurement range.
• Review the model version, reference, assumptions and applicability displayed in the workbench.
• Use the department-approved standard consistently and interpret the complete clinical assessment.
• Do not enter patient names, identity numbers or other identifying information.

INTENDED USE · FOR CLINICIANS

Phenomize Workbench

Examination-led fetal and postnatal phenotype workbench. Record targeted negatives, compare syndrome families, inspect source evidence, and identify the next useful assessment — with longitudinal history and EMR-ready outputs.

Sources & applicability

Inspect the references and calculation method or assessment pathway inside the workbench. Confirm that the case falls within the model’s scope; a screening result or risk score does not establish a diagnosis or an automatic management plan.

INTENDED USE · FOR CLINICIANS

First Trimester Workbench

Comprehensive first-trimester risk assessment workbench. Integrates ultrasound markers, maternal history, and biochemistry using a competing risks approach for aneuploidies and preeclampsia.

Sources & applicability

Inspect the references and calculation method or assessment pathway inside the workbench. Confirm that the case falls within the model’s scope; a screening result or risk score does not establish a diagnosis or an automatic management plan.

INTENDED USE · FOR CLINICIANS

Pregnancy Dating

Calculate due date, trimesters, and clinical milestones based on LMP, IVF embryo transfer, or ultrasound CRL.

Sources & applicability

Inspect the references and calculation method or assessment pathway inside the workbench. Confirm that the case falls within the model’s scope; a screening result or risk score does not establish a diagnosis or an automatic management plan.

INTENDED USE · FOR CLINICIANS

WHO Growth Charts & Velocity

Compare WHO and INTERGROWTH-21st centiles, assess serial growth velocity, calculate EFW, and support singleton and twin FGR assessment in one complete workbench.

Sources & applicability

Inspect the references and calculation method or assessment pathway inside the workbench. Confirm that the case falls within the model’s scope; a screening result or risk score does not establish a diagnosis or an automatic management plan.

INTENDED USE · FOR CLINICIANS

Fetal Skeletal Dysplasia

Structured skeletal survey with source-checked limb Z-scores, thoracic concern markers, phenotype prompts, missing views and reviewable reports. No individual survival prediction.

Sources & applicability

Inspect the references and calculation method or assessment pathway inside the workbench. Confirm that the case falls within the model’s scope; a screening result or risk score does not establish a diagnosis or an automatic management plan.

INTENDED USE · FOR CLINICIANS

Twin Growth & Doppler

Open the shared twins tab in the Growth Workbench: MCDA/DCDA growth, sFGR, Doppler, TTTS and TAPS assessment. One module, not a separate calculator.

Sources & applicability

Inspect the references and calculation method or assessment pathway inside the workbench. Confirm that the case falls within the model’s scope; a screening result or risk score does not establish a diagnosis or an automatic management plan.

INTENDED USE · FOR CLINICIANS

Fetal Anemia & Transfusion

Clinical decision support for fetal anemia, red-cell alloimmunization, MCA Doppler surveillance, and intrauterine transfusion planning.

Sources & applicability

Inspect the references and calculation method or assessment pathway inside the workbench. Confirm that the case falls within the model’s scope; a screening result or risk score does not establish a diagnosis or an automatic management plan.

INTENDED USE · FOR CLINICIANS

PAS + CSP Diagnostic Workbench

Clinical decision-support for cesarean scar pregnancy, placenta accreta spectrum screening, ultrasound markers, MRI mapping, and operative planning.

Sources & applicability

Inspect the references and calculation method or assessment pathway inside the workbench. Confirm that the case falls within the model’s scope; a screening result or risk score does not establish a diagnosis or an automatic management plan.

INTENDED USE · FOR CLINICIANS

CDH / FETO Workbench

Standardized lung measurements, MRI correlation, FETO evidence, balloon safety, and a coordinated neonatal handover.

Sources & applicability

Inspect the references and calculation method or assessment pathway inside the workbench. Confirm that the case falls within the model’s scope; a screening result or risk score does not establish a diagnosis or an automatic management plan.

INTENDED USE · FOR CLINICIANS

Fetal Hydrops Workbench

SMFM 2026-informed fluid assessment, maternal safety, immune review, phenotype-linked pathways and a parallel diagnostic testing tracker.

Sources & applicability

Inspect the references and calculation method or assessment pathway inside the workbench. Confirm that the case falls within the model’s scope; a screening result or risk score does not establish a diagnosis or an automatic management plan.

INTENDED USE · FOR CLINICIANS

Fetal Cardiology Workbench

Clinical decision-support for fetal cardiology measurements, 2D Z-scores, cardiac output, function indices, axis assessment, and arrhythmia management.

Sources & applicability

Inspect the references and calculation method or assessment pathway inside the workbench. Confirm that the case falls within the model’s scope; a screening result or risk score does not establish a diagnosis or an automatic management plan.

INTENDED USE · FOR CLINICIANS

Cervical Length & Preterm Birth

Quality-checked cervical measurement, guideline-specific prevention, symptomatic triage, PPROM, emergency-cerclage review and birth-optimization prompts. No individual risk percentage or automatic treatment orders.

Sources & applicability

Inspect the references and calculation method or assessment pathway inside the workbench. Confirm that the case falls within the model’s scope; a screening result or risk score does not establish a diagnosis or an automatic management plan.

INTENDED USE · FOR CLINICIANS

Maternal Cardiac Disease Workbench

ESC 2025 mWHO 2.0 phenotype review, complete-baseline CARPREG II, indexed aorta / PH and anticoagulation review, with coordinated birth and postpartum planning.

Sources & applicability

Inspect the references and calculation method or assessment pathway inside the workbench. Confirm that the case falls within the model’s scope; a screening result or risk score does not establish a diagnosis or an automatic management plan.

INTENDED USE · FOR CLINICIANS

NIPT Abnormal Results Workbench

ACOG 2026 / SMFM 2025-informed result review, source-documented probability counselling, diagnostic sampling / assay pathways and no-call / discordance follow-up.

Sources & applicability

Inspect the references and calculation method or assessment pathway inside the workbench. Confirm that the case falls within the model’s scope; a screening result or risk score does not establish a diagnosis or an automatic management plan.

INTENDED USE · FOR CLINICIANS

Fetal Infection Workbench

Clarify unexpected IgM and discordant results; review pathogen-specific confirmation, fetal PCR timing, maternal treatment / exposure protection, anemia surveillance and neonatal handover across a broad perinatal-infection library.

Sources & applicability

Inspect the references and calculation method or assessment pathway inside the workbench. Confirm that the case falls within the model’s scope; a screening result or risk score does not establish a diagnosis or an automatic management plan.

INTENDED USE · FOR CLINICIANS

Genetic Counseling & Fetal Genomics

Phenotype-led prenatal genomic testing; conditional inheritance / carrier-risk teaching; laboratory-led variant, CNV and ROH review; family history, counselling choices and result / reanalysis planning. No automated classification or consent.

Sources & applicability

Inspect the references and calculation method or assessment pathway inside the workbench. Confirm that the case falls within the model’s scope; a screening result or risk score does not establish a diagnosis or an automatic management plan.

INTENDED USE · FOR CLINICIANS

Induction & Early Delivery Workbench

Timing engine for induction of labour and early indicated delivery. Compares ACOG/SMFM, NICE/RCOG, SOGC and Abu Dhabi guidance, flags consensus vs discordance, screens induction contraindications, reverse-schedules ripening, and generates EMR-ready justification.

Sources & applicability

Inspect the references and calculation method or assessment pathway inside the workbench. Confirm that the case falls within the model’s scope; a screening result or risk score does not establish a diagnosis or an automatic management plan.