Lumbosacral Spine MRI

2022 ◽  
pp. 183-209
Author(s):  
Martine van Bilsen ◽  
Ronald Bartels
Keyword(s):  
Lumbosacral Spine ◽  
Spine Mri

Cauda Equina Syndrome

2018 ◽  
pp. 175-182
Author(s):  
Emily P. Sieg ◽  
Justin R. Davanzo ◽  
John P. Kelleher
Keyword(s):  
Lumbar Spine ◽  
Structural Damage ◽  
Cauda Equina ◽  
Sensory Function ◽  
Herniated Disc ◽  
Lumbosacral Spine ◽  
Common Cause ◽  
Bladder Control ◽  
Postsurgical Complications ◽  
Spine Mri

Cauda equine syndrome arises secondary to compression of or injury to the cauda equine, a group of nerves in the lumbosacral spine that provide motor and sensory function to most of the lower extremities, pelvic floor musculature, and sphincters. Symptoms can include loss of bowel and bladder control, lower extremity motor and sensory deficits, and pain. Compressive etiologies such as a midline herniated disc are the most common cause of cauda equine syndrome. Any patient with the described constellation of symptoms should undergo magnetic resonance imaging of the lumbar spine. In the setting of acute loss of motor, sensory, or autonomic function and a disc herniation or other compressive lesion seen on a lumbar spine MRI, emergency decompression via laminectomy should be undertaken. Complications range from structural damage intraoperatively to more general postsurgical complications. Operating on cauda equine patients at the earliest opportunity seems the most appropriate clinical practice.

scholarly journals The Yield of Lumbosacral Spine MRI in Patients with Isolated Chronic Low Back Pain: A Cross-Sectional Study

2020 ◽  
Vol Volume 12 ◽  
pp. 139-143
Author(s):  
Tareq Kanaan ◽  
Mohammed Alisi ◽  
Yara Anasweh ◽  
Noor Yousef ◽  
Qussay Al-Sabbagh ◽  
...  
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Chronic Low Back Pain ◽  
Cross Sectional Study ◽  
Lumbosacral Spine ◽  
Low Back ◽  
Sectional Study ◽  
Cross Sectional ◽  
Spine Mri

scholarly journals Prevalence and clinical potential of extraspinal incidental findings in lumbosacral spine MRI of patients with suspected disc diseases

2021 ◽  
Vol 30 (4) ◽  
pp. 256-63
Author(s):  
Sameeah Abdulrahman Rashid
Keyword(s):  
Urinary Tract ◽  
Incidental Findings ◽  
Cross Sectional Study ◽  
The Body ◽  
Lumbosacral Spine ◽  
Disc Disease ◽  
Cross Sectional ◽  
Common System ◽  
Clinical Potential ◽  
Spine Mri

BACKGROUND Incidental findings could be observed in organs close to the spine while reporting lumbosacral spine magnetic resonance imaging (MRI). This study aimed to report the prevalence and clinical potential of extraspinal incidental findings in lumbosacral MRI of patients with suspected disc diseases. METHODS This single-centered cross-sectional study was carried out on 420 consecutive adult patients who underwent lumbar spine MRI for suspected disc disease from January to July 2019. The MRI was checked for the presence of extraspinal incidental findings, and each finding was categorized according to the body organ and its clinical significance. Each MRI plane that best displayed the findings was recorded, and the association between the findings and patient's age and sex was determined. RESULTS Of 420 samples, 135 cases showed extraspinal findings (32.1%), and 7.6% of the patients displayed suspicious lesions. The urinary tract was the most common system (18.6%) to display both clinically significant (5.0%) and benign findings (13.6%), and the axial MRI section was the plane which showed most of the incidental findings. Incidental findings in any body system were rarely found in the younger patients. Females had significantly higher benign findings than males (p = 0.002). CONCLUSIONS The prevalence of extraspinal findings in lumbosacral spine MRI is high, and some are significant. Most findings are related to the urinary tract and best displayed in the axial plane.

scholarly journals Case report: isolated lower lip lesion following cavernoma resection in prone position

2019 ◽  
Vol 34 (1) ◽  
Author(s):  
Mir Ibrahim Sajid ◽  
Noor Malik ◽  
Rashid Jooma
Keyword(s):  
Cervical Spine ◽  
Prone Position ◽  
Vision Loss ◽  
Rare Complication ◽  
Lower Lip ◽  
Anatomical Structures ◽  
Long Duration ◽  
Increased Risk ◽  
Duration Of Surgery ◽  
Spine Mri

Abstract Background Surgery in a prone position is necessary when access to posterior anatomical structures is needed. A procedure in this position is associated with complications such as injuries to the eyes, peripheral nerves, and pressure points and swelling of the tongue. We report a rare complication of isolated lower lip swelling following neck dissection in the prone position. Case presentation A 25-year-old male patient presented to the clinic with complaint of neck pain for the past 2 months. A cervical spine MRI was done which showed the presence of a cavernoma. C2 laminectomy was performed for resection of the tumor in prone position with the head fixed on a three-point Mayfield clamp. Postoperatively, isolated swelling of the lower lip was observed. The patient was managed conservatively. Conclusion Cervical spine surgeries done in prone positions carry an increased risk of postoperative vision loss and swellings including those of the oropharynx and in the periorbital region. Possible risk factors for such conditions include anemia, hypotension, long duration of surgery, and significant intraoperative hydration.

scholarly journals Bi-allelic variants in MTMR5/SBF1 cause Charcot-Marie-Tooth type 4B3 featuring mitochondrial dysfunction

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Beatrice Berti ◽  
Giovanna Longo ◽  
Francesco Mari ◽  
Stefano Doccini ◽  
Ilaria Piccolo ◽  
...  
Keyword(s):  
Intellectual Disability ◽  
Mitochondrial Dysfunction ◽  
Early Onset ◽  
Integrated Approach ◽  
Compound Heterozygous ◽  
Charcot Marie Tooth ◽  
Charcot Marie Tooth Disease ◽  
Pathogenic Variants ◽  
First Case ◽  
Spine Mri

Abstract Background Charcot-Marie-Tooth disease (CMT) type 4B3 (CMT4B3) is a rare form of genetic neuropathy associated with variants in the MTMR5/SBF1 gene. MTMR5/SBF1 is a pseudophosphatase predicted to regulate endo-lysosomal trafficking in tandem with other MTMRs. Although almost ubiquitously expressed, pathogenic variants primarily impact on the peripheral nervous system, corroborating the involvement of MTMR5/SBF1 and its molecular partners in Schwann cells-mediated myelinization. Case presentation We report a case of severe CMT4B3 characterized by early-onset motor and axonal polyneuropathy in an Italian child in absence of any evidence of brain and spine MRI abnormalities or intellectual disability and with a biochemical profile suggestive of mitochondrial disease. Using an integrated approach combining both NGS gene panels and WES analysis, we identified two novel compound heterozygous missense variants in MTMR5/SBF1 gene, p.R763H (c.2291G > A) and p.G1064E (c.3194G > A). Studies in muscle identified partial defects of oxidative metabolism. Conclusion We describe the first case of an early onset severe polyneuropathy with motor and axonal involvement, due to recessive variants in the MTMR5/SBF1 gene, with no evidence of brain and spine MRI abnormalities, intellectual disability, no clinical and neurophysiological evidences of distal sensory impairment, and rapid neuromuscular deterioration. This report suggests that MTMR5/SBF1 should be considered in cases of infantile-onset CMT with secondary mitochondrial dysfunction.

scholarly journals A deep cascaded segmentation of obstructive sleep apnea-relevant organs from sagittal spine MRI

2021 ◽  
Vol 16 (4) ◽  
pp. 579-588
Author(s):  
Tatyana Ivanovska ◽  
Amro Daboul ◽  
Oleksandr Kalentev ◽  
Norbert Hosten ◽  
Reiner Biffar ◽  
...  
Keyword(s):  
Obstructive Sleep Apnea ◽  
Sleep Apnea ◽  
Soft Palate ◽  
High Speed ◽  
Sleep Apnea Syndrome ◽  
Epidemiological Data ◽  
Epidemiological Studies ◽  
Obstructive Sleep ◽  
Validation Set ◽  
Spine Mri

Abstract Purpose The main purpose of this work was to develop an efficient approach for segmentation of structures that are relevant for diagnosis and treatment of obstructive sleep apnea syndrome (OSAS), namely pharynx, tongue, and soft palate, from mid-sagittal magnetic resonance imaging (MR) data. This framework will be applied to big data acquired within an on-going epidemiological study from a general population. Methods A deep cascaded framework for subsequent segmentation of pharynx, tongue, and soft palate is presented. The pharyngeal structure was segmented first, since the airway was clearly visible in the T1-weighted sequence. Thereafter, it was used as an anatomical landmark for tongue location. Finally, the soft palate region was extracted using segmented tongue and pharynx structures and used as input for a deep network. In each segmentation step, a UNet-like architecture was applied. Results The result assessment was performed qualitatively by comparing the region boundaries obtained from the expert to the framework results and quantitatively using the standard Dice coefficient metric. Additionally, cross-validation was applied to ensure that the framework performance did not depend on the specific selection of the validation set. The average Dice coefficients on the test set were $$0.89\pm 0.03$$ 0.89 ± 0.03 , $$0.87\pm 0.02$$ 0.87 ± 0.02 , and $$0.79\pm 0.08$$ 0.79 ± 0.08 for tongue, pharynx, and soft palate tissues, respectively. The results were similar to other approaches and consistent with expert readings. Conclusion Due to high speed and efficiency, the framework will be applied for big epidemiological data with thousands of participants acquired within the Study of Health in Pomerania as well as other epidemiological studies to provide information on the anatomical structures and aspects that constitute important risk factors to the OSAS development.

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