The aim of this case series is to show the reliability of magnetic resonance imaging (MRI) in the initial diagnosis of this disease and demonstrate its advantages compared to other modalities. We also compared our cases with other larger studies and give a review of literature to confirm our observations.
Sporadic Creutzfeldt–Jakob disease (sCJD) is a uniformly fatal neurodegenerative disorder caused by the accumulation of an abnormal form of the human prion protein in the brain. It typically presents as a rapidly progressive dementia (RPD). For a definitive diagnosis, brain biopsy or autopsy is required (definite CJD). Premortal diagnosed patients are called probable CJD according to the diagnostic criteria of Zerr et al. So this entity can be difficult to identify antemortem.
Table of Contents
1. Abstract
2. Introduction
3. Material and Methods
4. Case 1
5. Case 2
6. Case 3
7. Case 4
8. Case 5
9. Case 6
10. Results
11. Discussion
12. Conclusion
Objectives and Topics
The primary objective of this case series is to demonstrate the clinical reliability and diagnostic value of magnetic resonance imaging (MRI), specifically diffusion-weighted imaging (DWI) with ADC mapping, for the early identification of sporadic Creutzfeldt–Jakob disease (sCJD) in comparison to traditional diagnostic modalities like EEG and CSF protein analysis.
- Application of DWI and ADC mapping in the initial diagnosis of sCJD.
- Clinical presentation and rapid progression of sCJD in six case patients.
- Comparison of MRI findings with EEG results and 14-3-3 protein analysis.
- Evaluation of MRI as a superior tool for early detection and exclusion of other neurodegenerative pathologies.
- Assessment of radiological signal abnormalities in basal ganglia and cortical regions.
Excerpt from the book
Case 1
A 70-year-old female patient was transferred to hospital because of vertigo. The first symptoms appeared three weeks ago. The initial clinical examination revealed ataxia. The patient was initially orientated and no cognitive impairment was detectable. MRI revealed restricted diffusion in the cortex of the occipital, frontal and temporal lobe on the left side and the left sided caudate nucleus (Fig. 1). No changes have been detected on FLAIR and T2w sequences. EEG showed PSWC on the left hemisphere of the brain.
Within the next weeks, a rapid deterioration and cerebellar symptoms could be detected. The patient developed a rapidly progressive dementia.
CSF analysis was positive for 14-3-3 protein. According to these results the patient was diagnosed with probable sCJD. The patient died 37 days after the initial diagnosis. The autopsy of the brain confirmed the diagnosis of sCJD.
Chapter Summary
Abstract: Provides a high-level overview of sCJD and outlines the study's focus on evaluating MRI reliability in diagnosing patients with rapidly progressive dementia.
Introduction: Defines sCJD as a rare, fatal prion disease and details the diagnostic challenges, emphasizing existing clinical criteria and the role of current diagnostic tests.
Material and Methods: Outlines the retrospective study design involving six patients, including their demographic characteristics and the specific 1.5 Tesla MRI imaging protocols used.
Case 1: Describes the presentation of a 70-year-old female with vertigo and subsequent development of sCJD symptoms, verified by autopsy.
Case 2: Details the case of a 52-year-old female presenting with tremor and ataxia, where MRI revealed symmetric diffusion restriction.
Case 3: Presents a 62-year-old male with rapidly progressive dementia and hemianopsia, leading to a definitive post-mortem diagnosis of sCJD.
Case 4: Discusses a unique case of a 61-year-old female with long-term tremor and dietary changes who was diagnosed with sCJD post-mortem despite initial negative clinical markers.
Case 5: Covers a 75-year-old male with altered mental status and significant MRI findings in the basal ganglia and temporal cortex.
Case 6: Summarizes a 77-year-old female patient presenting with depression and cognitive impairment, highlighting cortical diffusion restriction on DWI.
Results: Synthesizes the clinical data across all six cases, highlighting common patterns such as rapid deterioration and high sensitivity of DWI even when other tests were inconclusive.
Discussion: Interprets the findings by comparing them with current literature, arguing that DWI is a more sensitive and specific marker for early sCJD diagnosis than EEG or 14-3-3 protein analysis.
Conclusion: Reaffirms the necessity of DWI and ADC mapping in the early diagnostic workup to differentiate sCJD from other treatable neurodegenerative diseases.
Keywords
Sporadic Creutzfeldt–Jakob disease, sCJD, magnetic resonance imaging, MRI, diffusion-weighted imaging, DWI, ADC map, prion protein, 14-3-3 protein, EEG, rapidly progressive dementia, neurodegenerative disorders, diagnostic criteria, neuropathology, clinical diagnosis.
Frequently Asked Questions
What is the core focus of this research paper?
The paper examines the diagnostic efficacy of magnetic resonance imaging, specifically diffusion-weighted imaging (DWI), in the early identification of sporadic Creutzfeldt–Jakob disease (sCJD).
What are the primary themes addressed in this study?
The central themes include the clinical challenges of diagnosing sCJD, the reliability of current non-invasive diagnostic tests, and the superiority of MRI findings over EEG and CSF analysis in early stages.
What is the ultimate research objective?
The objective is to demonstrate that MRI protocols, particularly the use of ADC maps, serve as highly sensitive and specific tools for the early diagnosis of sCJD, especially when clinical features appear atypical.
Which scientific methodology is utilized?
The study utilizes a retrospective case series analysis of six patients, comparing their MRI results with clinical outcomes, EEG data, CSF 14-3-3 protein levels, and autopsy reports where available.
What topics are covered in the main body of the text?
The body covers the clinical presentation of six specific patients, their diagnostic imaging protocols, the comparison of these findings with literature on prion diseases, and an evaluation of differential diagnosis.
Which keywords best describe this study?
The work is characterized by terms such as sCJD, diffusion-weighted imaging (DWI), rapidly progressive dementia, 14-3-3 protein, and neurological diagnostics.
Why is Case 4 considered particularly important for the study's conclusions?
Case 4 is significant because the patient exhibited MRI signal abnormalities even before the onset of classic symptoms, proving the potential of MRI for early detection even when clinical diagnostic criteria were not initially met.
How does this study contribute to the differential diagnosis of rapid dementia?
It provides a clear framework for differentiating sCJD from other rapid dementias (RPD) by illustrating how specific patterns on DWI/ADC maps can distinguish prionic pathology from conditions like stroke or encephalitis.
What is the significance of the 14-3-3 protein in this context?
While the 14-3-3 protein is a recognized parameter for sCJD detection, the study highlights that MRI findings are often more reliable and offer earlier results than CSF analysis.
- Arbeit zitieren
- Robert Vollmann (Autor:in), 2019, Magnetic resonance imaging for initial diagnosis of sporadic Creutzfeldt Jakob disease, München, GRIN Verlag, https://www.grin.com/document/486923
