Articles related to MEDICAL DIAGNOSTICS

Enhancing Cardiovascular Disease Risk Prediction: Comparing Coronary Artery Calcium and Polygenic Risk Scores A Northwestern University study revealed that both coronary artery calcium and polygenic risk scores significantly influence 10-year risk prediction for coronary heart disease. However, coronary artery calcium score demonstrated superior predictive power, reinforcing the integration of these novel tools in risk prediction models. “What this study says is that in white participants enrolled in 2 observational studies, identifying coronary calcium predicted future cardiac events better than our currently available polygenic risk scores.” Dr. Karol E. Watson, PhD, professor of medicine and cardiology at the David Geffen School of Medicine at the University of California Los Angeles

Dopaminergic Dysfunction: A Key Player in Parkinson’s Disease Motivational Symptoms This study reveals a significant link between dopaminergic dysfunction and the emergence of motivational symptoms in Parkinson’s disease. Striatal DAT imaging emerges as a potential tool for predicting apathy/anhedonia risk, opening new avenues for intervention strategies.

Navigate the complex world of diagnosing Chiari malformation in this insightful review of a clinical case. To understand Chiari malformation, let’s explore a clinical case. A mid-30s patient with a migraine history came to the ED with a sudden posterior headache. Accompanied by transient total body numbness, loss of coordination, and an inability to swallow with drooling, these symptoms started abruptly after violent sneezing. Although neurological symptoms faded after 20 seconds, the headache persisted. Regarding vital signs and physical examination, everything was normal. The patient had a head CT ordered. Interpreting the clinical picture and CT images with care is crucial in these cases. Even though a sudden onset headache could signify a ruptured berry aneurysm, no blood was detected on the CT cuts, minimizing that concern. Remember, an LP is seldom recommended if the CT is performed within 6 hours and hemoglobin exceeds 10 g/dL. However, the clinical presentation in this case, characterized by headache and drooling, didn’t match a typical migraine. Be mindful that many patients might loosely use the term “migraine” for any severe headache. The CT cut revealed a brainstem compressed by the cerebellum, indicative of a Chiari malformation type 1. Chiari malformation, characterized by an […]

This deep-dive into acromioclavicular joint injuries unpacks everything a physician needs to know about these prevalent injuries. Acromioclavicular joint (ACJ) injuries, mostly traumatic, can occur across all ages but are more frequent in males aged 20-40, often related to contact sports. Patients usually present with vague shoulder pain and swelling, but visible deformity is rare. Two mechanisms contribute to ACJ injuries: direct, resulting from a direct blow or fall onto the shoulder, and indirect, arising from a fall onto an outstretched hand or elbow. Imaging is crucial for diagnosis. The Rockwood system, among others, categorizes these injuries into six types. Plain radiographs, including an axillary view, generally suffice for accurate grading. However, in certain scenarios, CT or MRI might be necessary. In case of an injury suspicion with initial normal radiographs or contemplating surgical intervention on a type III injury, additional weight-bearing stress views can be beneficial. Indications of ACJ injury on a plain radiograph may include soft tissue swelling, acromioclavicular joint widening, increased coracoclavicular distance, and superior displacement of the distal clavicle. The treatment choice hinges largely on the patient’s age, lifestyle, and injury type. Conservative management typically applies to types I and II injuries, surgical treatment to types […]

This 1-Minute Consult reviews the bedside workup of delirium and possible stroke and reviews the cases for – and against – imaging.

Despite the fact that OCT angiography (OCTA) does not technically qualify as multimodal imaging per se, it does offer several modes of visualization from a single scan, including an angiogram, a structural picture, and en face imaging with boundary specific segmentation. The use of OCTA can assist doctors in communicating to patients with geographic atrophy who are susceptible to exudation the necessity for routine follow-up. Clinicians can rule out artifacts by analyzing the flow overlay on the OCTA cross-section. If the flow isn’t where it should be for the illness, it’s probably an artifact.