Axial-loaded Magnetic Resonance Imaging in the Diagnosis of Static Disorders of the Lumbar Spine
Introduction The diagnosis of spinal statics disorders requires a study conducted both with and without axial load. Standard multislice computed tomography (MSCT) and magnetic resonance imaging (MRI) are limited to the examination of the patient in the supine position. Axial loading techniques hav...
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Russian Ilizarov Scientific Center for Restorative Traumatology and Orthopaedics
2020-09-01
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| Series: | Гений oртопедии |
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| author | Alexandr V. Bazhin Elena A. Egorova Dmitry A. Lezhnev Aleksandr Yu. Vasilyev Viktor P. Truten Margarita V. Smyslenova |
| author_facet | Alexandr V. Bazhin Elena A. Egorova Dmitry A. Lezhnev Aleksandr Yu. Vasilyev Viktor P. Truten Margarita V. Smyslenova |
| author_sort | Alexandr V. Bazhin |
| collection | DOAJ |
| description | Introduction The diagnosis of spinal statics disorders requires a study conducted both with and without axial load. Standard multislice computed
tomography (MSCT) and magnetic resonance imaging (MRI) are limited to the examination of the patient in the supine position. Axial loading techniques
have expanded the indications for the use of high-tech methods of radiological diagnosis in assessing the statics of the lumbar spine. Methods 124 patients
underwent conventional radiographic examination of the lumbar spine in the frontal and lateral projections in a standing position and an MRI study before
and during axial load. Radiography with functional tests was used for cases with displaced vertebras. The Pearson correlation coefficient was used to
compare the data; the significance of the methods was evaluated using calculations of diagnostic performance indicators. Results An increase of the angle
of lordosis was noted in tests with axial load (r = 0.93). Indicators of scoliotic deformity obtained with MRI with axial load corresponded to X-ray data
(r = 0.89). The diagnostic efficiency of MRI with a dosed axial load was the following: Se = 91.7 %, Sp = 89.2 %, Ac = 90.6 %; the results of MRI in the
upright position were slightly lower: Se = 89.2 %, Sp = 73.9 %, Ac = 83.3%. Spondylolisthesis was found in 11 patients. The instability data obtained by
comparing MR studies before and during the axial load with radiography with functional tests revealed their almost complete correspondence (r = 0.88).
Discussion Axial-loaded MRI can provide additional information on statics, which is necessary to assess the nature of pathological changes. MR techniques
based on low-field tomographic systems are limited in the diagnosis of extended deformations. MRI with axial load is a method of choice, especially when
dynamic monitoring is necessary, due to the absence of ionizing radiation. Axial loading of the spine in MSCT study seems promising. |
| first_indexed | 2024-12-12T11:22:52Z |
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| id | doaj.art-49da4e33f92742cb9050cebce8e84e18 |
| institution | Directory Open Access Journal |
| issn | 1028-4427 2542-131X |
| language | English |
| last_indexed | 2024-12-12T11:22:52Z |
| publishDate | 2020-09-01 |
| publisher | Russian Ilizarov Scientific Center for Restorative Traumatology and Orthopaedics |
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| series | Гений oртопедии |
| spelling | doaj.art-49da4e33f92742cb9050cebce8e84e182022-12-22T00:25:59ZengRussian Ilizarov Scientific Center for Restorative Traumatology and OrthopaedicsГений oртопедии1028-44272542-131X2020-09-0126337638110.18019/1028-4427-2020-26-3-376-381Axial-loaded Magnetic Resonance Imaging in the Diagnosis of Static Disorders of the Lumbar SpineAlexandr V. Bazhin0https://orcid.org/0000-0003-3198-1334Elena A. Egorova1Dmitry A. Lezhnev2https://orcid.org/0000-0002-7163-2553Aleksandr Yu. Vasilyev3https://orcid.org/0000-0002-0635-4438Viktor P. Truten4Margarita V. Smyslenova5Municipal City Polyclinic № 2, Department of Healthcare of Moscow, Moscow, Russian Federation, State Budget-Funded Health Care Institution of the City of Moscow "Research and Practical Clinical Center for Diagnostics and Telemedicine Technologies of Moscow Health Care Department", Moscow, Russian FederationMoscow State University of Medicine and Dentistry named after Evdokimov, Moscow, Russian FederationMoscow State University of Medicine and Dentistry named after Evdokimov, Moscow, Russian FederationMoscow State University of Medicine and Dentistry named after Evdokimov, Moscow, Russian FederationMoscow State University of Medicine and Dentistry named after Evdokimov, Moscow, Russian FederationMoscow State University of Medicine and Dentistry named after Evdokimov, Moscow, Russian FederationIntroduction The diagnosis of spinal statics disorders requires a study conducted both with and without axial load. Standard multislice computed tomography (MSCT) and magnetic resonance imaging (MRI) are limited to the examination of the patient in the supine position. Axial loading techniques have expanded the indications for the use of high-tech methods of radiological diagnosis in assessing the statics of the lumbar spine. Methods 124 patients underwent conventional radiographic examination of the lumbar spine in the frontal and lateral projections in a standing position and an MRI study before and during axial load. Radiography with functional tests was used for cases with displaced vertebras. The Pearson correlation coefficient was used to compare the data; the significance of the methods was evaluated using calculations of diagnostic performance indicators. Results An increase of the angle of lordosis was noted in tests with axial load (r = 0.93). Indicators of scoliotic deformity obtained with MRI with axial load corresponded to X-ray data (r = 0.89). The diagnostic efficiency of MRI with a dosed axial load was the following: Se = 91.7 %, Sp = 89.2 %, Ac = 90.6 %; the results of MRI in the upright position were slightly lower: Se = 89.2 %, Sp = 73.9 %, Ac = 83.3%. Spondylolisthesis was found in 11 patients. The instability data obtained by comparing MR studies before and during the axial load with radiography with functional tests revealed their almost complete correspondence (r = 0.88). Discussion Axial-loaded MRI can provide additional information on statics, which is necessary to assess the nature of pathological changes. MR techniques based on low-field tomographic systems are limited in the diagnosis of extended deformations. MRI with axial load is a method of choice, especially when dynamic monitoring is necessary, due to the absence of ionizing radiation. Axial loading of the spine in MSCT study seems promising.magnetic resonance imagingstatic disordersaxial loading techniquesmagnetic resonance imagingaxial loading techniques |
| spellingShingle | Alexandr V. Bazhin Elena A. Egorova Dmitry A. Lezhnev Aleksandr Yu. Vasilyev Viktor P. Truten Margarita V. Smyslenova Axial-loaded Magnetic Resonance Imaging in the Diagnosis of Static Disorders of the Lumbar Spine Гений oртопедии magnetic resonance imaging static disorders axial loading techniquesmagnetic resonance imaging axial loading techniques |
| title | Axial-loaded Magnetic Resonance Imaging in the Diagnosis of Static Disorders of the Lumbar Spine |
| title_full | Axial-loaded Magnetic Resonance Imaging in the Diagnosis of Static Disorders of the Lumbar Spine |
| title_fullStr | Axial-loaded Magnetic Resonance Imaging in the Diagnosis of Static Disorders of the Lumbar Spine |
| title_full_unstemmed | Axial-loaded Magnetic Resonance Imaging in the Diagnosis of Static Disorders of the Lumbar Spine |
| title_short | Axial-loaded Magnetic Resonance Imaging in the Diagnosis of Static Disorders of the Lumbar Spine |
| title_sort | axial loaded magnetic resonance imaging in the diagnosis of static disorders of the lumbar spine |
| topic | magnetic resonance imaging static disorders axial loading techniquesmagnetic resonance imaging axial loading techniques |
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