Magnetic Resonance Imaging in a Patient with a Dual Chamber Pacemaker

Millar, Lynne; Robinson, Andrew; O'Flaherty, M; Eames, Niall; Johnston, Nicola; Heyburn, G.

doi:10.1155/2010/292071

Cited by 4 publications

(4 citation statements)

References 9 publications

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“…MRI helps to clearly describe soft tissue pathology and to determine the extent of damage, as well as to help distinguish CES from other conditions such as aortic dissection or spinal infarction. The disadvantage of MRI is that it cannot be used in patients with pacemaker or poor tolerance due to claustrophobia 6,16 . Magnetic resonance imaging (MRI) is not as clearly de ned as computed tomography (CT) but it is better at displaying soft tissues such as a disc, ligament, dural sac and nerve roots 16 .…”

Section: Discussionmentioning

confidence: 99%

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Cauda Equina Syndrome-Induced Acute Urinary Retention in Patients with Acute Lumbar Disc Herniation: Report of Two Clinical Cases.

Hoai¹,

Nguyen²,

Le³

et al. 2020

Preprint

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Objective: to discuss two cases with CES-induced acute urinary retention, knowledge of which is essential for early diagnosis, treatment and prevention of neurological dysfunctions. Case presentation: Two patients were hospitalized with symptoms lower back pain with weakness and progressive loss of feeling of lower limbs accompanied by acute urinary retention, urinary system tests were within normal limits. Magnetic resonance imaging results in lumbar disc herniation causing spinal stenosis. Both patients underwent posterior lumbar interbody fusion (PLIF) procedure and showed improvements in symptoms after surgery and re-examination.Conclusion: The diagnosis should be based on magnetic resonance imaging. Lumbar disc herniation is the most common cause of acute urinary retention from cauda equina compression. Laminectomy, with early decompression within 24 to 48 hours, reduces the risk of long-term neurological dysfunction and increases the chances of recovery for the patient.

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Section: Discussionmentioning

confidence: 99%

“…Magnetic resonance imaging (MRI) is the gold standard for the diagnosis of cauda equina syndrome and helps distinguish it from diagnoses such as aortic dissection or spinal infarction 6 . Myelography and CT (computed tomography) Myelography can be useful alternatives for patients who cannot have an MRI, but it is an invasive technique.…”

Section: Introductionmentioning

confidence: 99%

Cauda Equina Syndrome-Induced Acute Urinary Retention in Patients with Acute Lumbar Disc Herniation: Report of Two Clinical Cases.

Hoai¹,

Nguyen²,

Le³

et al. 2020

Preprint

View full text Add to dashboard Cite

show abstract

“…The psychosocial aspect or presence of back pain and other urological dysfunction may inhibit the patient to volunteer sexual dysfunction. 18 4,19 Magnetic resonance imaging (MRI) do not define bone as clearly as computed tomography (CT) but is better at showing soft tissues such as intervertebral disc, ligamentum flavum, dural sac, and nerve roots. 19 Plain films are generally unhelpful in the investigation of a herniated disc but can provide valuable information in the setting of acute trauma.…”

Section: Discussionmentioning

confidence: 99%

“…3 Magnetic Resonance Imaging (MRI) is the accepted gold standard modality of choice for diagnosing CES which identifies potential mimics such as aortic dissection or spinal infarction. 4 Myelography and CT Myelography is used as an alternative for patients not suitable for MRI but have the disadvantage of being invasive techniques. 5 Most cases of cauda equina syndrome are caused by herniation of the lumbar disc, for which the surgery indicated is decompression at the level of the herniation, usually involving discectomy.…”

Section: Introductionmentioning

confidence: 99%

A rare case report on cauda equina syndrome

Sreeram¹,

Sampurna²,

lakshmi³

2017

Int J Basic Clin Pharmacol

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Cauda Equina Syndrome (CES) is a rare but serious neurologic condition in which neurological dysfunction affects the lumbar and sacral nerve roots within the vertebral canal. CES is a clinical entity consisting of low back ache, bilateral leg pain with motor and sensory deficits, genitourinary dysfunction, saddle anaesthesia and faecal incontinence. It is a rare condition with a prevalence in the general population estimated between 1:100000 and 1:33000. The presentation of CES may vary, especially in the early stages of compression. Magnetic Resonance Imaging (MRI) is the accepted gold standard modality of choice for diagnosing CES which identifies potential mimics such as aortic dissection or spinal infarction. Here we discuss a rare and unique case of CES with atypical presentation, knowledge of which is essential for early diagnosis, treatment and prevention of permanent neurological dysfunction.

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Magnetic resonance imaging in patients with cardiac pacemakers: era of “MR Conditional” designs

Shinbane

Colletti

Shellock

2011

Journal of Cardiovascular Magnetic Resonance

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Advances in cardiac device technology have led to the first generation of magnetic resonance imaging (MRI) conditional devices, providing more diagnostic imaging options for patients with these devices, but also new controversies. Prior studies of pacemakers in patients undergoing MRI procedures have provided groundwork for design improvements. Factors related to magnetic field interactions and transfer of electromagnetic energy led to specific design changes. Ferromagnetic content was minimized. Reed switches were modified. Leads were redesigned to reduce induced currents/heating. Circuitry filters and shielding were implemented to impede or limit the transfer of certain unwanted electromagnetic effects. Prospective multicenter clinical trials to assess the safety and efficacy of the first generation of MR conditional cardiac pacemakers demonstrated no significant alterations in pacing parameters compared to controls. There were no reported complications through the one month visit including no arrhythmias, electrical reset, inhibition of generator output, or adverse sensations. The safe implementation of these new technologies requires an understanding of the well-defined patient and MR system conditions. Although scanning a patient with an MR conditional device following the strictly defined patient and MR system conditions appears straightforward, issues related to patients with pre-existing devices remain complex. Until MR conditional devices are the routine platform for all of these devices, there will still be challenging decisions regarding imaging patients with pre-existing devices where MRI is required to diagnose and manage a potentially life threatening or serious scenario. A range of other devices including ICDs, biventricular devices, and implantable physiologic monitors as well as guidance of medical procedures using MRI technology will require further biomedical device design changes and testing. The development and implementation of cardiac MR conditional devices will continue to require the expertise and collaboration of multiple disciplines and will need to prove safety, effectiveness, and cost effectiveness in patient care.

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Magnetic Resonance Imaging in a Patient with a Dual Chamber Pacemaker

Cited by 4 publications

References 9 publications

Cauda Equina Syndrome-Induced Acute Urinary Retention in Patients with Acute Lumbar Disc Herniation: Report of Two Clinical Cases.

Cauda Equina Syndrome-Induced Acute Urinary Retention in Patients with Acute Lumbar Disc Herniation: Report of Two Clinical Cases.

A rare case report on cauda equina syndrome

Magnetic resonance imaging in patients with cardiac pacemakers: era of “MR Conditional” designs

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