Correlation between chronic headaches and the rectus capitis posterior minor muscle: A comparative analysis of cross-sectional trail

Objective We aimed to investigate the morphological changes and potential correlation between chronic headaches and the rectus capitis posterior minor muscle (RCPmi). Methods Comparison of RCPmi between patients with chronic headaches and healthy adult volunteers were collected using magnetic resonance imaging (MRI) and Mimics software. Results Among the 235 MRI images analyzed, the data between the two groups were considered statistically significant. The number of males was larger than that of females ( p < 0.001) and the headache group showed greater hypertrophy than the control group in both males ( p < 0.001) and females ( p = 0.001). Conclusions Chronic headaches were correlated with the RCPmi. Patients with chronic headaches suffered from more obvious hypertrophy than that of the control group. Additionally, it was supposed that RCPmi hypertrophy may be one pathogenesis of the chronic headaches.

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Optimal Cut-Off Value of the Superior Articular Process Area as a Morphological Parameter to Predict Lumbar Foraminal Stenosis

Pain Research and Management ◽

10.1155/2017/7914836 ◽

2017 ◽

Vol 2017 ◽

pp. 1-5 ◽

Cited By ~ 2

Author(s):

Tae-Ha Lim ◽

Soo Il Choi ◽

Hyung Rae Cho ◽

Keum Nae Kang ◽

Chang Joon Rhyu ◽

...

Keyword(s):

Facet Joint ◽

Control Group ◽

Foraminal Stenosis ◽

Morphological Parameter ◽

Resonance Imaging ◽

Cross Sectional ◽

Lumbar Foraminal Stenosis ◽

Articular Process ◽

Magnetic Resonance Imaging Mri ◽

Bone Margin

Background. We devised a new morphological parameter called the superior articular process area (SAPA) to evaluate the connection between lumbar foraminal stenosis (LFS) and the superior articular process. Objective. We hypothesized that the SAPA is an important morphologic parameter in the diagnosis of LFS. Methods. All patients over 60 years of age were included. Data regarding the SAPA were collected from 137 patients with LFS. A total of 167 control subjects underwent lumbar magnetic resonance imaging (MRI) as part of a routine medical examination. We analyzed the cross-sectional area of the bone margin of the superior articular process at the level of L4-L5 facet joint in the axial plane. Results. The average SAPA was 96.3±13.6 mm2 in the control group and 128.1±17.2 mm2 in the LFS group. The LFS group was found to have significantly higher levels of SAPA (p<0.001) in comparison to the control group. In the LFS group, the optimal cut-off value was 112.1 mm2, with 84.4% sensitivity, 83.9% specificity, and AUC of 0.94 (95% CI: 0.91–0.96). Conclusions. Higher SAPA values were associated with a higher possibility of LFS. These results are important in the evaluation of patients with LFS.

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Evaluation of the TMJ by means of Clinical TMD Examination and MRI Diagnostics in Patients with Rheumatoid Arthritis

BioMed Research International ◽

10.1155/2014/328560 ◽

2014 ◽

Vol 2014 ◽

pp. 1-9 ◽

Cited By ~ 14

Author(s):

Silke Witulski ◽

Thomas J. Vogl ◽

Stefan Rehart ◽

Peter Ottl

Keyword(s):

Rheumatoid Arthritis ◽

Morphological Changes ◽

Masticatory Muscles ◽

Control Group ◽

Resonance Imaging ◽

Mri Findings ◽

Disk Displacement ◽

Magnetic Resonance Imaging Mri ◽

Mri Diagnostics ◽

Inflammatory Changes

This study included 30 patients with diagnosed rheumatoid arthritis (RA) and 30 test subjects without RA (control group). The objective of the study was to examine both groups for the presence of temporomandibular disorders (TMD) and morphological changes of the temporomandibular joint (TMJ). All individuals were examined using a systematic detailed clinical TMD examination as well as magnetic resonance imaging (MRI). The clinical TMD examination yielded significant differences between the RA patients and the control group concerning crepitus of the TMJ, and palpation tenderness of the masticatory muscles as well as the unassisted mandibular opening. The evaluation of the MRI images for the RA group showed significantly more frequent deformations of the condyle, osteophyte formations and erosions in the condylar compacta, and degenerative changes in the spongiosa. Increased intra-articular accumulation of synovial liquid and signs of inflammatory changes of the spongiosa were only found in the RA group. Statistical analysis showed a significant correlation between crepitus and specific osteoarthrotic changes (MRI), respectively, and between crepitus and a complete anterior disk displacement without reduction (MRI). The duration of the RA disease correlated neither with the anamnestic and clinical dysfunction index by Helkimo nor with RA-specific MRI findings.

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Magnetic resonance imaging template to standardize reporting of anal fistulas

Techniques in Coloproctology ◽

10.1007/s10151-020-02384-6 ◽

2021 ◽

Author(s):

I. Sudoł-Szopińska ◽

G. A. Santoro ◽

M. Kołodziejczak ◽

A. Wiaczek ◽

U. Grossi

Keyword(s):

Magnetic Resonance Imaging ◽

Magnetic Resonance ◽

Treatment Strategies ◽

Cross Sectional Study ◽

Resonance Imaging ◽

Anal Fistulas ◽

Cross Sectional ◽

Radiology Reports ◽

Colorectal Surgeons ◽

Magnetic Resonance Imaging Mri

AbstractAnal fistula (AF) is a common referral to colorectal surgeons. Management remains challenging and sometimes controversial. Magnetic resonance imaging (MRI) is commonly performed in initial workup for AF. However, reports often lack key information for guiding treatment strategies. It has been shown that with structured radiology reports, there is less missing information. We present a structured MRI template report including 8 key descriptors of anal fistulas, whose effectiveness and acceptability are being assessed in a cross-sectional study (NCT04541238).

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Ligaments of the os trigonum: an anatomical study

Surgical and Radiologic Anatomy ◽

10.1007/s00276-021-02694-w ◽

2021 ◽

Author(s):

Paweł Szaro ◽

Khaldun Ghali Gataa ◽

Mateusz Polaczek

Keyword(s):

Posterior Part ◽

Anatomical Study ◽

Control Group ◽

Flexor Hallucis Longus ◽

Resonance Imaging ◽

Os Trigonum ◽

Posterior Process ◽

Magnetic Resonance Imaging Mri ◽

Experimental Group ◽

Posterior Talofibular Ligament

Abstract Purpose The aim of the study was to examine the ligaments of the os trigonum. Methods The ankle joint magnetic resonance imaging (MRI) of 104 patients with the os trigonum (experimental group) and 104 patients without the os trigonum (control group) were re-reviewed. The connections of the os trigonum and posterior talofibular ligament (PTFL), the fibulotalocalcaneal ligament (FTCL), the paratenon of the Achilles tendon, the posterior talocalcaneal ligament (PTCL), the osteofibrous tunnel of the flexor hallucis longus (OF-FHL) and the flexor retinaculum (FR) were studied. Results The os trigonum is connected to structures. The posterior part of the PTFL inserted on the os trigonum in 85.6% of patients, whereas in all patients in the control group, the posterior part of the PTFL inserted on the posterior talar process (p < 0.05). The connection of the PTCL was seen in 94.2% of patients in the experimental group, while it was seen in 90.4% of patients in the control group (p > 0.05). The connection to the FTCL in the experimental group was 89.4%, while in the control group, it was 91.3% (p > 0.05). The communication with the paratenon was seen more often in the control group compared to that in the experimental group (31.7% vs. 63.8%, p < 0.001). The FTCL was prolonged medially into the FR in 85.6% of patients in the experimental group and in 87.5% of patients in the control group (p > 0.05). The flexor hallucis longus (FHL) run at the level of articulation between the os trigonum 63.5% and the posterior process of the talus 25% and less often on the os trigonum 11.5%. Conclusion The os trigonum is connected with all posterior ankle structures and more connections than previously reported.

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Relationship between abnormalities detected by magnetic resonance imaging and knee symptoms in early knee osteoarthritis

Scientific Reports ◽

10.1038/s41598-021-94382-3 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Seiya Ota ◽

Eiji Sasaki ◽

Shizuka Sasaki ◽

Daisuke Chiba ◽

Yuka Kimura ◽

...

Keyword(s):

Magnetic Resonance Imaging ◽

Magnetic Resonance ◽

Knee Osteoarthritis ◽

Cartilage Damage ◽

Resonance Imaging ◽

Mri Findings ◽

Radiographic Evidence ◽

Cross Sectional ◽

Meniscal Lesions ◽

Magnetic Resonance Imaging Mri

AbstractWe investigated the prevalence of magnetic resonance imaging (MRI) findings and their relationship with knee symptoms in women without radiographic evidence of knee osteoarthritis (KOA). This cross-sectional cohort study included 359 Japanese women without radiographic evidence of KOA (Kellgren‒Lawrence grade < 2). All participants underwent T2-weighted fat-suppressed MRI of their knees. Structural abnormalities (cartilage damage, bone marrow lesions [BMLs], subchondral cysts, bone attrition, osteophytes, meniscal lesions, and synovitis) were scored according to the whole-organ MRI score method. Knee symptoms were evaluated using the Knee Injury and Osteoarthritis Outcome Score. Participants were divided into early and non-KOA groups based on early KOA classification criteria. Logistic regression analysis was performed to evaluate the relationship between MRI abnormalities and knee symptoms. Cartilage damage was the most common abnormality (43.5%). The prevalences of cartilage damage, BMLs, subchondral cysts, bone attrition, meniscal lesions, and synovitis were higher in patients with early KOA than in those without. Synovitis (odds ratio [OR] 2.254, P = 0.002) and meniscal lesions (OR 1.479, P = 0.031) were positively associated with the presence of early KOA. Synovitis was most strongly associated with knee pain and might be a therapeutic target in patients with early KOA.

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Magnetic resonance imaging studies on autism and childhood-onset schizophrenia in children and adolescents – a review

Acta Neuropsychiatrica ◽

10.1034/j.1601-5215.2003.00021.x ◽

2003 ◽

Vol 15 (3) ◽

pp. 140-147

Author(s):

Bertine Lahuis ◽

Chantal Kemner ◽

Herman Van Engeland

Keyword(s):

Magnetic Resonance Imaging ◽

Magnetic Resonance ◽

Children And Adolescents ◽

Resonance Imaging ◽

Childhood Onset ◽

Cross Sectional ◽

Medline Search ◽

Childhood Onset Schizophrenia ◽

Magnetic Resonance Imaging Mri ◽

Study Designs

Objective:To find out whether the neurodevelopmental disorders autism and childhood-onset schizophrenia have a common developmental pathway and whether the abnormalities detected are ‘disorder-specific’, by reviewing magnetic resonance imaging (MRI) studies.Methods:As a result of a Medline search, we were able to access 28 studies on autism and 12 studies on childhood-onset schizophrenia, which focused on children and adolescents.Results:Larger lateral ventricles were found to be a common abnormality in both disorders. ‘Disorder-specific’ abnormalities in patients with autism were larger brains, a larger thalamic area, and a smaller right cingulate gyrus. Subjects with childhood-onset schizophrenia were found to have smaller brains, a smaller amygdalum and thalamus, and a larger nucleus caudatus. In subjects with childhood-onset schizophrenia, abnormalities appeared to progress over a limited period of time.Conclusions:Because the study designs varied so much, the results should be interpreted cautiously. Before abnormalities found in the disorders can be designated as equal or ‘disorder-specific’, it will be essential to perform large longitudinal and cross-sectional follow-up studies.

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Analysis of Combined Treatment of Embolic Stroke in Rat with r-tPA and a GPIIb/IIIa Inhibitor

Journal of Cerebral Blood Flow & Metabolism ◽

10.1038/sj.jcbfm.9600010 ◽

2005 ◽

Vol 25 (1) ◽

pp. 87-97 ◽

Cited By ~ 23

Author(s):

Guangliang Ding ◽

Quan Jiang ◽

Li Zhang ◽

Zheng Gang Zhang ◽

Lian Li ◽

...

Keyword(s):

Magnetic Resonance Imaging ◽

Magnetic Resonance ◽

Thrombolytic Therapy ◽

Combination Treatment ◽

Infarct Volume ◽

Embolic Stroke ◽

Control Group ◽

Resonance Imaging ◽

Cerebral Microvessels ◽

Magnetic Resonance Imaging Mri

Suppression of platelet activation improves the efficacy of thrombolytic therapy for stroke. Thus, combination treatment with recombinant tissue plasminogen activator (r-tPA) and 7E3 F(ab′)2, a GPIIb/IIIa inhibitor that binds the platelet to fibrin, may improve the efficacy of thrombolytic therapy in embolic stroke. Magnetic resonance imaging (MRI) was used to monitor treatment response in rats subjected to embolic middle cerebral artery (MCA) occlusion (MCAo). Animals were randomized into treated ( n = 12) and control ( n = 10) groups and received intravenous combination therapy or saline, respectively, 4 hours after MCAo. Magnetic resonance imaging (MRI) measurements performed 1 hour after MCAo showed no difference between groups. However, an increased incidence (50%) of MCA recanalization was found in the treated group at 24 hours compared with 20% in the control group. The area of low cerebral blood flow at 24 and 48 hours was significantly smaller in the combination treatment group, and the lesion size, as indicated from the T2 and T1 maps, differed significantly between groups. Fluorescence microscopy measurements of cerebral microvessels perfused with fluorescein isothiocyanate-dextran and measurements of infarct volume revealed that the combination treatment significantly increased microvascular patency and reduced infarct volume, respectively, compared with the control rats. The efficacy of combination treatment 4 hours after ischemia is reflected by MRI indices of tissue perfusion, MCA recanalization, and reduction of lesion volume. The treatment also reduced secondary microvascular perfusion deficits.

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Dynamics of the Tracheal Airway and Its Influences on Respiratory Airflows: An Exemplar Study

Journal of Biomechanical Engineering ◽

10.1115/1.4043723 ◽

2019 ◽

Vol 141 (11) ◽

Cited By ~ 1

Author(s):

Bora Sul ◽

Talissa Altes ◽

Kai Ruppert ◽

Kun Qing ◽

Daniel S. Hariprasad ◽

...

Keyword(s):

Morphological Changes ◽

Minute Ventilation ◽

Correlation Coefficients ◽

Dynamic Imaging ◽

Imaging Data ◽

Cross Sectional ◽

Mild Conditions ◽

Large Airways ◽

Magnetic Resonance Imaging Mri

Respiration is a dynamic process accompanied by morphological changes in the airways. Although deformation of large airways is expected to exacerbate pulmonary disease symptoms by obstructing airflow during increased minute ventilation, its quantitative effects on airflow characteristics remain unclear. Here, we used in vivo dynamic imaging and examined the effects of tracheal deformation on airflow characteristics under different conditions based on imaging data from a single healthy volunteer. First, we measured tracheal deformation profiles of a healthy lung using magnetic resonance imaging (MRI) during forced exhalation, which we simulated to characterize the subject-specific airflow patterns. Subsequently, for both inhalation and exhalation, we compared the airflows when the modeled deformation in tracheal cross-sectional area was 0% (rigid), 33% (mild), 50% (moderate), or 75% (severe). We quantified differences in airflow patterns between deformable and rigid airways by computing the correlation coefficients (R) and the root-mean-square of differences (Drms) between their velocity contours. For both inhalation and exhalation, airflow patterns were similar in all branches between the rigid and mild conditions (R > 0.9; Drms < 32%). However, airflow characteristics in the moderate and severe conditions differed markedly from those in the rigid and mild conditions in all lung branches, particularly for inhalation (moderate: R > 0.1, Drms < 76%; severe: R > 0.2, Drms < 96%). Our exemplar study supports the use of a rigid airway assumption to compute flows for mild deformation. For moderate or severe deformation, however, dynamic contraction should be considered, especially during inhalation, to accurately predict airflow and elucidate the underlying pulmonary pathology.

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SÍNDROME DEL ESPACIO CUADRILÁTERO: ¿INFRECUENTE O INSOSPECHADO? Quadrilateral space syndrome: infrequent or unsuspected?

Revista Argentina de Anatomía Clínica ◽

10.31051/1852.8023.v8.n2.14372 ◽

2016 ◽

Vol 8 (2) ◽

pp. 87-92

Author(s):

Lucas M. Gutierrez ◽

Matias Cullari ◽

Maximiliano Ranaletta ◽

Ignacio Tanoira ◽

César Gomez ◽

...

Keyword(s):

Clinical Presentation ◽

Matched Control ◽

External Rotation ◽

Axillary Nerve ◽

Control Group ◽

Vascular Compression ◽

Resonance Imaging ◽

Diagnostic Protocol ◽

Magnetic Resonance Imaging Mri ◽

Teres Minor

Introducción: El síndrome del espacio cuadrilátero (QSS) es un cuadro clínico causado por la compresión nerviosa y/o vascular a nivel del espacio axilar lateral. La prevalencia de este síndrome se desconoce y se cree que es baja, sin embargo, formas de presentación incompleta podrían llevar a que el mismo sea subdiagnosticado. Objetivo: Describir un protocolo diagnóstico utilizado en una serie de casos consecutivos de pacientes con omalgia inespecífica y sospecha de QSS. Materiales y Métodos: De manera prospectiva se evaluaron 10 pacientes con omalgia agravada con la rotación externa forzada, uno de ellos con síntomas bilaterales. Se realizó electromiografía (EMG) de deltoides y redondo menor bilaterales, con estudios de conducción nerviosa. Los valores se compararon con el hombro sano, y con un grupo control. El diagnóstico se confirmó mediante resonancia magnética nuclear (RMN). Resultados: El EMG mostró en todos los casos atrapamiento con compromiso axonal de la rama para el redondo menor, con preservación de la inervación del deltoides. La RMN mostró en los 11 hombros afectados atrofia selectiva del redondo menor. Conclusión: El QSS en sus formas incompletas suele ser subdiagnosticado, siendo necesario mantener un alto índice de sospecha clínica frente a un cuadro de omalgia inespecífica. Palabras Claves: espacio cuadrilátero, omalgia, electromiografía, redondo menor, nervio axilar. Introduction: The quadrilateral space syndrome (QSS) has clinical features caused by a nervous and /or vascular compression at the lateral axillary space. The prevalence of this syndrome is unknown but it is believed to be low. Nevertheless, some cases with an incomplete clinical presentation might be misdiagnosed. Purpose: To describe a diagnostic protocol used in a series of consecutive cases of patients with non-specific omalgia and suspected QSS. Materials and Methods: Ten patients of both genders suffering shoulder pain aggravated by forced external rotation were prospectively evaluated. One of them had bilateral symptoms. Evaluation included clinical examination, electromyography (EMG) and nerve conduction studies of the deltoid and teres minor bilaterally. The results were compared with an age-matched control group. Diagnosis was confirmed by magnetic resonance imaging (MRI). Results: The EMG showed in all the cases a selective entrapment of the branch for the teres minor, with preservation of the innervation of the deltoid. The RMN showed in the 11 affected shoulders selective atrophy of the teres minor. Conclusion: Incomplete presentations of the QSS are usually underdiagnosed, making it necessary to maintain a high index of clinical suspicion in front of any non-specific omalgia case. Key words: quadrilateral space, omalgia, electromyography, teres minor, axillary nerve.

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