Anatomical Evaluation of the Caudal Regression Syndrome (Lumbosacral Agenesis) with Magnetic Resonance Imaging

Neurosurgery ◽  
1989 ◽  
Vol 25 (3) ◽  
pp. 462-465 ◽  
Author(s):  
C. T. E. Pappas ◽  
Linda Seaver ◽  
Carlos Carrion ◽  
Harold Rekate
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Magnetic Resonance ◽  
Soft Tissues ◽  
Resonance Imaging ◽  
Caudal Regression Syndrome ◽  
Caudal Regression ◽  
Male Neonate ◽  
Vertebral Defects ◽  
Rule Out

Abstract Caudal regression syndrome involves absence of the sacrococcygeal vertebrae with or without lumbar vertebral defects. Since the neurological condition of infants with this syndrome deteriorates, radiographic studies are important to rule out any surgically correctable lesion. A paraplegic male neonate with a vertebral canal ending at T11 is presented. This is the first report of using magnetic resonance imaging to evaluate the spinal cord and surrounding soft tissues involved in this syndrome. Magnetic resonance imaging provides more anatomical details than myelogram with computed tomography, which greatly aids in determining whether surgery is necessary.

scholarly journals Cross-sectional anatomy, computed tomography, and magnetic resonance imaging of the banded houndshark (Triakis scyllium)

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Sang Wha Kim ◽  
Adams Hei Long Yuen ◽  
Cherry Tsz Ching Poon ◽  
Joon Oh Hwang ◽  
Chang Jun Lee ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Magnetic Resonance ◽  
Soft Tissues ◽  
Imaging Techniques ◽  
Evolutionary Developmental Biology ◽  
Phylogenetic Position ◽  
Ct Scanner ◽  
Resonance Imaging ◽  
Cross Sectional

AbstractDue to their important phylogenetic position among extant vertebrates, sharks are an invaluable group in evolutionary developmental biology studies. A thorough understanding of shark anatomy is essential to facilitate these studies and documentation of this iconic taxon. With the increasing availability of cross-sectional imaging techniques, the complicated anatomy of both cartilaginous and soft tissues can be analyzed non-invasively, quickly, and accurately. The aim of this study is to provide a detailed anatomical description of the normal banded houndshark (Triakis scyllium) using computed tomography (CT) and magnetic resonance imaging (MRI) along with cryosection images. Three banded houndsharks were scanned using a 64-detector row spiral CT scanner and a 3 T MRI scanner. All images were digitally stored and assessed using open-source Digital Imaging and Communications in Medicine viewer software in the transverse, sagittal, and dorsal dimensions. The banded houndshark cadavers were then cryosectioned at approximately 1-cm intervals. Corresponding transverse cryosection images were chosen to identify the best anatomical correlations for transverse CT and MRI images. The resulting images provided excellent detail of the major anatomical structures of the banded houndshark. The illustrations in the present study could be considered as a useful reference for interpretation of normal and pathological imaging studies of sharks.

Imaging in stroke

2017 ◽  
Author(s):  
Hugh Markus ◽  
Anthony Pereira ◽  
Geoffrey Cloud
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Magnetic Resonance ◽  
Imaging Techniques ◽  
Haemorrhagic Stroke ◽  
Stroke Care ◽  
Resonance Imaging ◽  
Rule Out

Imaging plays a key role in the investigation in stroke, both to confirm the diagnosis and rule out other causes, and also to determine the underlying aetiology. This chapter covers the different imaging techniques which are commonly used in stroke care. It discusses the use of computed tomography and magnetic resonance imaging in diagnosis of both ischaemic and haemorrhagic stroke. It also covers the various angiographic imaging techniques that can be used to identify the presence of extra- and intracranial stenoses.

scholarly journals Magnetic Resonance Imaging Analysis of Caudal Regression Syndrome and Concomitant Anomalies in Pediatric Patients

2016 ◽  
Vol 6 ◽  
pp. 36 ◽  
Author(s):  
Deb K Boruah ◽  
Dhaval D Dhingani ◽  
Sashidhar Achar ◽  
Arjun Prakash ◽  
Antony Augustine ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Pediatric Patients ◽  
Tertiary Care ◽  
Tethered Cord ◽  
Type I ◽  
Care Hospital ◽  
Resonance Imaging ◽  
Caudal Regression Syndrome ◽  
Caudal Regression

Objective: The aim of this study was to evaluate the magnetic resonance imaging (MRI) findings of caudal regression syndrome (CRS) and concomitant anomalies in pediatric patients. Materials and Methods: A hospital-based cross-sectional retrospective study was conducted. The study group comprised 21 pediatric patients presenting to the Departments of Radiodiagnosis and Pediatric Surgery in a tertiary care hospital from May 2011 to April 2016. All patients were initially evaluated clinically followed by MRI. Results: In our study, 21 pediatric patients were diagnosed with sacral agenesis/dysgenesis related to CRS. According to the Pang's classification, 2 (9.5%) patients were Type I, 5 (23.8%) patients were Type III, 7 (33.3%) patients were Type IV, and 7 (33.3%) patients were of Type V CRS. Clinically, 17 (81%) patients presented with urinary incontinence, 6 (28.6%) with fecal incontinence, 9 patients (42.9%) had poor gluteal musculatures and shallow intergluteal cleft, 7 (33.3%) patients had associated subcutaneous mass over spine, and 6 (28.6%) patients presented with distal leg muscle atrophy. MRI showed wedge-shaped conus termination in 5 (23.8%) patients and bulbous conus termination in 3 (14.3%) patients above the L1 vertebral level falling into Group 1 CRS while 7 (33.3%) patients had tethered cord and 6 (28.6%) patients had stretched conus falling into Group 2 CRS. Conclusion: MRI is the ideal modality for detailed evaluation of the status of the vertebra, spinal cord, intra- and extra-dural lesions and helps in early diagnosis, detailed preoperative MRI evaluation and assessing concomitant anomalies and guiding further management with early institution of treatment to maximize recovery.

scholarly journals Use of Sialendoscopy as an Aid to Identify a Large Retained Foreign Body

2017 ◽  
Vol 96 (8) ◽  
pp. E18-E19
Author(s):  
Christopher J. Britt ◽  
David Hyman ◽  
Gregory K. Hartig
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Foreign Body ◽  
Magnetic Resonance ◽  
Soft Tissues ◽  
The Novel ◽  
Resonance Imaging ◽  
Surgical Exploration ◽  
Retained Foreign Body ◽  
Facial Soft Tissues

We describe the novel use of sialendoscopy in a 51-year-old man to identify a large and long-standing foreign body (wood) within the facial soft tissues that had eluded detection on previous imaging and surgical exploration. The identification of this foreign body was elusive on both computed tomography and magnetic resonance imaging, illustrating the limitations of imaging in identifying vegetable matter within soft tissues.

Top-Ten Tips for Ultrasound-Guided Joint Injection

2019 ◽  
Vol 23 (04) ◽  
pp. 419-428 ◽  
Author(s):  
Ryan Ka Lok Lee ◽  
James F. Griffith
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Magnetic Resonance ◽  
Contrast Agents ◽  
Soft Tissues ◽  
Joint Injection ◽  
Resonance Imaging ◽  
Ultrasound Guided

AbstractUltrasound-guided joint injection is more accurate than palpation-guided injection and performed more frequently. Joint injection is helpful for therapeutic and diagnostic purposes as well as for injecting contrast agents for magnetic resonance imaging or computed tomography arthrography. Ultrasound-guided joint injection helps ensure intra-articular injection and minimizes injury to para-articular soft tissues.

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