Day 30: Your Final Countdown – Master Strategy for ARDMS SPI Exam Success

🎉 Congratulations — you’ve reached Day 30 of the ARDMS Blog Series!You’ve journeyed through ultrasound physics, artifacts, Doppler principles, resolution, instrumentation, and advanced technologies like harmonics and elastography. Now, it’s time to bring it all together with a strategic approach to SPI exam success. 🎯 SPI Exam Overview Recap 🧭 Step-by-Step SPI Exam Strategy ✅ … Read more

Day 29: Elastography and Tissue Characterization – Imaging Beyond Anatomy

Welcome to Day 29!Today we explore a modern advancement in ultrasound that adds functional insight to our structural images: Elastography — a technique that visualizes tissue stiffness. It helps differentiate benign from malignant lesions, assess fibrosis, and adds clinical value beyond grayscale imaging. 🧵 What is Elastography? Elastography is a non-invasive ultrasound technique that evaluates … Read more

Day 28: Harmonic Imaging and Contrast Agents – Enhancing Image Quality

Welcome to Day 28!As we near the end of our 30-day series, today’s topic covers Harmonic Imaging and the role of ultrasound contrast agents — two advancements that dramatically improve image clarity and diagnostic accuracy. 🎵 What is Harmonic Imaging? Harmonic imaging is an advanced ultrasound technique where the machine receives echoes at double the … Read more

Day 27: Power Doppler – Principles, Advantages, and Limitations

Welcome to Day 27 of your ARDMS preparation journey!Today, we’ll explore Power Doppler, a specialized Doppler mode that detects amplitude (strength) of blood flow rather than velocity or direction. Though not always the first choice, Power Doppler has unique advantages that make it crucial in certain clinical scenarios — and often appears in SPI exam … Read more

Day 26: Color Doppler Artifacts – Aliasing, Color Bleeding, Flash Artifact & Color Noise

Welcome to Day 26!We’re now deep into the world of Doppler artifacts, and today we shift focus to Color Doppler imaging. Understanding these artifacts helps you interpret vascular and cardiac studies accurately — and score big on the SPI exam. Let’s break down four key Color Doppler artifacts: Aliasing, Color Bleeding (Color Extending), Flash Artifact, … Read more

Day 25: Doppler Artifacts – Aliasing, Mirror Image, and Spectral Broadening

Welcome to Day 25!Today, we transition from B-mode artifacts to Doppler-specific artifacts — essential for understanding flow patterns, avoiding misinterpretation, and acing the SPI exam. Let’s focus on three core Doppler artifacts: Aliasing, Doppler Mirror Image, and Spectral Broadening. 🔄 1. Aliasing Artifact Definition: A Doppler phenomenon where the flow appears to “wrap around” the … Read more

Day 24: Artifacts in Ultrasound Imaging – Part 2: Shadowing, Enhancement, Edge Artifact, and Side Lobes

Welcome to Day 24, where we continue exploring ultrasound artifacts — this time focusing on four crucial ones that affect brightness, edge detection, and beam behavior. These artifacts are both diagnostically helpful and testable in the SPI exam. Let’s dive into Shadowing, Enhancement, Edge Artifact, and Side Lobes. 🌑 1. Shadowing Artifact Definition: A dark … Read more

Day 23: Artifacts in Ultrasound Imaging – Part 1: Reverberation, Comet Tail, Ring Down, and Mirror Image

Welcome to Day 23 of our journey toward SPI success!Today we begin a two-part series on a crucial topic for both the SPI exam and real-world scanning — ultrasound artifacts. These “image errors” can mislead diagnoses or reveal hidden truths — if you know how to interpret them! Let’s begin with four commonly tested artifacts: … Read more

Day 22: Demystifying Spatial Resolution – Axial, Lateral, and Elevational

Welcome back! Today, we’re focusing on one of the most critical aspects of ultrasound imaging — spatial resolution. While temporal resolution captures motion, spatial resolution ensures clarity and detail of structures. Let’s break down the three dimensions of spatial resolution: axial, lateral, and elevational. 🔍 What is Spatial Resolution? Spatial resolution is the ability of … Read more

Day 21: Understanding Frame Rate and Temporal Resolution in Ultrasound

Welcome to Day 21!Today, we explore an essential concept in ultrasound imaging — frame rate and how it directly influences temporal resolution. This is especially critical when evaluating rapidly moving structures like the fetal heart or pulsating arteries. 🧠 What is Frame Rate? Frame Rate is the number of ultrasound images (frames) generated per second, … Read more