RADS Guide vs cfDNA PPV Calculator

Download includes a free trial; continued use requires a 1- or 12-month auto-renewing subscription. RADS Guide (LI-RADS, PI-RADS, O-RADS & more) is a clinical decision-support reference built around widely used “RADS” structured reporting systems. It delivers point-of-care, step-by-step category guidance so you can classify findings consistently, communicate risk clearly, and align follow-up recommendations—whether you practice in radiology or a related specialty. --- Key Features (unlocked after the free trial with an active subscription) Multi-RADS Integration • In-app access to the core categories, definitions, and management/reporting guidance across: LI-RADS, PI-RADS, O-RADS, C-RADS, CAD-RADS, Lung-RADS, TI-RADS, and Bone-RADS—organized for fast, practical use at the workstation or clinic. Dynamic Category Card • A single, interactive card that updates in real time as you select key inputs (e.g., modality/context and relevant imaging features)—instantly surfacing the appropriate RADS category and next-step guidance. System Quick-Switch • In a few taps, jump between LI-RADS, PI-RADS, O-RADS, C-RADS, CAD-RADS, Lung-RADS, TI-RADS, and Bone-RADS so you can stay in flow while reading diverse studies. Category-First Reporting Support • Clear, concise category summaries designed to support standardized impressions and reduce variability—helping you stay consistent across shifts, sites, and readers. Self-Assessment Mode • Expert-curated question packs that spotlight high-yield thresholds, common pitfalls, and diagnostic pearls to reinforce your understanding of the RADS frameworks. Enhanced Readability • Dark-mode support, dynamic text sizing, and a distraction-free interface optimized for hectic reading environments. Offline Access • All guideline logic runs on-device—no login or server required. Medical Disclaimer: This app is for informational purposes only and is not a substitute for professional medical advice. In addition to using this app, always consult a qualified healthcare provider for diagnosis and treatment decisions. SUBSCRIPTION OPTIONS ¹ • 1-Month subscription (free trial available) | Price displayed in-app; may vary by region • 12-Month subscription (free trial available) | Price displayed in-app; may vary by region We aim to add ACR RADS updates as soon as possible, usually within 30 days of publication. We plan to add new self-assessment question packs about every 6 months. Future feature additions and update frequency may change without notice. ¹ Payment & Renewal – Payment is charged to your Apple ID at confirmation. Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Manage or cancel anytime in Settings ▸ Apple ID ▸ Subscriptions. Note: If you switch plans or re-subscribe during the free trial, the remaining trial time is lost and you will be charged immediately. Privacy Policy: https://radiologiq.squarespace.com/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

This Cell Free Fetal DNA PPV Calculator estimates positive predictive value (PPV) and negative predictive value (NPV) for prenatal cell-free DNA (cfDNA) screening using Bayesian probability. Conditions supported: • Trisomy 21 • Trisomy 18 • Trisomy 13 • Monosomy X (45,X) • 47,XXY • 47,XYY • 47,XXX For autosomal trisomies, pretest probability may be derived from maternal-age population risk tables (midtrimester risk by age at term). For sex chromosome aneuploidies, pretest probability can be entered as population prevalence (1 in N). Sensitivity and specificity are user-editable to reflect lab-specific performance. This app is for screening support and educational use. It does not provide a diagnosis. Positive screening results should be confirmed with diagnostic testing and clinical correlation.