Related Experiment Video
Updated: Feb 2, 2026
07:33
A Simple Composite Phenotype Scoring System for Evaluating Mouse Models of Cerebellar Ataxia
Published on: May 21, 2010
37.3K
Neuroimaging Applications in Chronic Ataxias
Mario Mascalchi1, Alessandra Vella2
1Meyer Children Hospital, Florence, Italy; Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy.
International Review of Neurobiology
|November 27, 2018
Summary
Neuroimaging techniques like MRI, SPECT, and PET aid in diagnosing chronic ataxia by identifying specific atrophy patterns and signal changes. These methods are crucial for understanding disease progression and exploring potential treatment markers.
Area of Science:
- Neurology
- Radiology
- Medical Imaging
Background:
- Chronic ataxia presents with diverse etiologies, necessitating precise diagnostic tools.
- Neuroimaging, including MRI, SPECT, and PET, are primary modalities for investigating ataxia.
- Identifying specific neuroimaging patterns aids in differentiating various forms of ataxia.
Purpose of the Study:
- To review the diagnostic utility of MRI, SPECT, and PET in chronic ataxia.
- To correlate neuroimaging findings with specific ataxia subtypes.
- To discuss the role of neuroimaging in tracking disease progression and as potential surrogate markers for treatment.
Main Methods:
- Visual assessment of MRI for atrophy patterns (spinal, cortical cerebellar, olivopontocerebellar).
- Analysis of T2 or T2* weighted MRI for signal abnormalities (hyperintensity/hypointensity) in specific brain regions.
- Evaluation of SPECT and PET for radiotracer uptake in the nigrostriatal system.
Main Results:
- MRI visual patterns correlate with specific ataxias: spinal atrophy (Friedreich ataxia), cortical cerebellar atrophy (Ataxia Telangectasia, gluten ataxia), olivopontocerebellar atrophy (Multiple System Atrophy).
- Characteristic MRI signal changes (T2 hyper/hypointensity) are observed in various ataxia types, aiding differential diagnosis.
- SPECT and PET show reduced nigrostriatal uptake in Multiple System Atrophy and Fragile X Tremor Ataxia Syndrome.
Conclusions:
- MRI is the predominant neuroimaging tool for diagnosing chronic ataxia, offering distinct patterns for different etiologies.
- Neuroimaging techniques provide sensitive markers for tracking disease progression in chronic ataxias.
- Further research is needed to establish neuroimaging as reliable surrogate markers for treatment efficacy.
Related Concept Videos
01:23Chronic Pharyngitis
11.9K
Chronic pharyngitis refers to persistent inflammation of the pharyngial mucosa.
Etiology
It often arises from persistent viral or bacterial infections affecting sinuses and tonsils.
Additional contributing factors include inadequate dental hygiene, mouth breathing, recurring tonsillitis, allergic rhinitis, laryngopharyngeal reflux, and exposure to smoke, chemicals, and other environmental pollutants. Allergic reactions to pollen, mold, and pet dander, chronic cough, excessive voice usage,...
Etiology
It often arises from persistent viral or bacterial infections affecting sinuses and tonsils.
Additional contributing factors include inadequate dental hygiene, mouth breathing, recurring tonsillitis, allergic rhinitis, laryngopharyngeal reflux, and exposure to smoke, chemicals, and other environmental pollutants. Allergic reactions to pollen, mold, and pet dander, chronic cough, excessive voice usage,...
11.9K
01:24Chronic Pancreatitis I: Introduction
741
The pancreas, an elongated and flat gland situated behind the stomach, serves a vital function in digesting food and managing blood sugar levels.
Pancreatitis is the inflammation of the pancreas, which occurs when the immune system becomes active and causes swelling, pain, and disruptions in organ function. Pancreatitis can manifest as either an acute or chronic condition.
Acute pancreatitis arises suddenly and lasts for a brief duration, while chronic pancreatitis is a long-term affliction...
Pancreatitis is the inflammation of the pancreas, which occurs when the immune system becomes active and causes swelling, pain, and disruptions in organ function. Pancreatitis can manifest as either an acute or chronic condition.
Acute pancreatitis arises suddenly and lasts for a brief duration, while chronic pancreatitis is a long-term affliction...
741
01:17Chronic Bowel Disorders: Introduction
802
Chronic bowel diseases are a group of long-term conditions affecting the digestive tract, characterized by inflammation and damage to the gut lining. These conditions primarily include irritable bowel syndrome and inflammatory bowel disease.
Irritable Bowel Syndrome (IBS) is a common disorder affecting the gastrointestinal tract. The distinctive feature is recurrent abdominal pain associated with altered bowel movements, manifesting as constipation, diarrhea, or fluctuating between both. The...
Irritable Bowel Syndrome (IBS) is a common disorder affecting the gastrointestinal tract. The distinctive feature is recurrent abdominal pain associated with altered bowel movements, manifesting as constipation, diarrhea, or fluctuating between both. The...
802
01:29Chronic Pancreatitis II: Collaborative Care
368
The management of chronic pancreatitis is multifaceted, involving a comprehensive approach that includes thorough assessment, diagnostic testing, and a variety of management strategies.
Assessment:
Assessment:
368
01:25Chronic Kidney Disease I: Introduction
736
Chronic Kidney Disease (CKD) arises when the kidneys progressively lose their ability to function, ultimately leading to end-stage renal disease. At this advanced stage, the kidneys can no longer filter waste or maintain essential body functions, requiring renal replacement therapy (RRT) through dialysis or a kidney transplant for survival.Early-stage chronic kidney disease and detection challengesIn CKD's early stages, symptoms often remain absent because healthy nephrons compensate for...
736
01:24Chronic Obstructive Pulmonary Disease
2.5K
COPD is defined as a heterogeneous lung condition marked by persistent respiratory symptoms such as dyspnea, cough, and sputum production, caused by abnormalities in the airways that cause airflow obstruction.
Smoking is a primary risk factor for COPD, with over 80% of patients having a history of it. Patients typically experience progressive dyspnea or labored breathing, frequent coughing, and recurrent pulmonary infections. Many eventually succumb to respiratory failure, characterized by...
Smoking is a primary risk factor for COPD, with over 80% of patients having a history of it. Patients typically experience progressive dyspnea or labored breathing, frequent coughing, and recurrent pulmonary infections. Many eventually succumb to respiratory failure, characterized by...
2.5K