What factors affect a patient's subjective perception of MRI examination.

MRI is becoming increasingly available and more common. However, it is a long examination, within a limited space, and making strong demands on the patient for proper co-operation. Using survey data collected by prospective questionnaire, this work examines the influence of patient preparation and type of MRI device on patients' subjective perception of the examination.

Adjuvant radiotherapy after brain metastasectomy: analysis of consecutive cohort of 118 patients from real world practice.

Background: The aim of this retrospective study is to analyze a consecutive cohort of brain metastasis (BM) patients treated off clinical trials through combination of surgery and radiotherapy over the last 15 years in a tertiary neurooncology center.

Materials And Methods: All BM patients operated between 2007-2019 received adjuvant linac-based radiotherapy categorized to whole brain radiotherapy (WBRT) and tumor bed stereotactic radiotherapy. Survival outcomes and local control was analyzed.

The relationship between gadolinium enhancement and [18 F]fluorothymidine uptake in brain lesions with the use of hybrid PET/MRI.

Background: To evaluate and compare the diagnostic power of [F]FLT-PET with ceMRI in patients with brain tumours or other focal lesions.

Methods: 121 patients with suspected brain tumour or those after brain tumour surgery were enroled in this retrospective study (61 females, 60 males, mean age 37.3 years, range 1-80 years).

Significance of F-18 FDG PET/MRI in the search for the etiology of inflammation of unclear origin and fever of unknown origin.

Purpose: To evaluate the contribution of F-18 FDG-PET/MRI in the search for the etiology of the inflammation of unknown origin (IUO) and fever of unknown origin (FUO).

Material And Methods: The study included 104 patients who underwent F-18 FDG-PET/MRI for IUO or FUO. The sensitivity, specificity, predictive values of the PET/MRI findings in relation to the final diagnosis of IUO/FUO were evaluated.

Case report Ileal diverticulitis with covered perforation complicated by pulmonary embolism - case report.

Diverticulitis of the ileum is an inflammatory complication of diverticulosis. It is an uncommon cause of acute abdomen that can have a very serious course, leading, for example, to intestinal perforation or bleeding. Imaging findings are very often negative and the true cause of the condition is only revealed peroperatively.

Evaluating Magnetic Resonance Diffusion Properties Together with Brain Volumetry May Predict Progression to Multiple Sclerosis.

Rationale And Objectives: Although the gold standard in predicting future progression from clinically isolated syndrome (CIS) to clinically definite multiple sclerosis (CDMS) consists in the McDonald criteria, efforts are being made to employ various advanced MRI techniques for predicting clinical progression. This study's main aim was to evaluate the predictive power of diffusion tensor imaging (DTI) of the brain and brain volumetry to distinguish between patients having CIS with future progression to CDMS from those without progression during the following 2 years and to compare those parameters with conventional MRI evaluation.

Materials And Methods: All participants underwent an MRI scan of the brain.

MR Diffusion Properties of Cervical Spinal Cord as a Predictor of Progression to Multiple Sclerosis in Patients with Clinically Isolated Syndrome.

Background And Purpose: This study's aim was to investigate diffusion properties of the cervical spinal cord in patients with clinically isolated syndrome (CIS) through analysis of diffusion tensor imaging (DTI) data and thereby to assess the capacity of this technique for predicting the progression of CIS to clinically definite multiple sclerosis (CDMS).

Methods: The study groups were comprised of 47 patients with CIS (15 of them with progression to CDMS within 2 years of follow-up) and 57 asymptomatic controls. All patients and controls had undergone magnetic resonance imaging (MRI) of the cervical spine including DTI and brain MRI.

[Reliability of the Evaluation of MRI Examinations after the Treatment of Chondral Defects in the Knee Joint].

PURPOSE OF THE STUDY This study is a component part of the project focused on cartilage imaging after the treatment of a defect. It aims to compare the evaluation of postoperative status performed by two radiologists with the use of 2D MOCART scoring system and to determine whether this method is a reliable tool for the evaluation of postoperative changes. MATERIAL AND METHODS The study evaluated 78 MRI examinations from 25 patients (one patient had two defects treated), each of whom underwent 3 MRI examinations at 6, 12 and 18 months after surgery.

[Two-Year Results of Modified AMIC Technique for Treatment of Cartilage Defects of the Knee].

PURPOSE OF THE STUDY Damage to hyaline cartilage represents a serious problem due to its limited capacity of regeneration. Currently, there are several treatment options available. The purpose of this study is to evaluate the success rate of treatment of chondral and osteochondral defects of the knee joint using the modified AMIC (Autologous Matrix-Induced Chondrogenesis) technique, combining microfractures of the base and the implantation of the type I collagen-based cell-free implant over a two-year period.

In silico study of pseudoprogression in glioblastoma: collaboration of radiologists and radiation oncologists in the estimation of extent of high dose RT region.

Background And Aim: Oncologists play a vital role in the interpretation of radiographic results in glioblastoma patients. Molecular pathology and information on radiation treatment protocols among others are all important for accurate interpretation of radiology images. One important issue that may arise in interpreting such images is the phenomenon of tumor "pseudoprogression"; oncologists need to be able to distinguish this effect from true disease progression.

Structural and functional MRI correlates of T2 hyperintensities of brain white matter in young neurologically asymptomatic adults.

Objectives: Although white matter hyperintensities (WMHs) are quite commonly found incidentally, their aetiology, structural characteristics, and functional consequences are not entirely known. The purpose of this study was to quantify WMHs in a sample of young, neurologically asymptomatic adults and evaluate the structural and functional correlations of lesion load with changes in brain volume, diffusivity, and functional connectivity.

Methods: MRI brain scan using multimodal protocol was performed in 60 neurologically asymptomatic volunteers (21 men, 39 women, mean age 34.

[Current Options and Importance of Imaging of the Hyaline Articular Cartilage of the Knee Prior to the Surgery - a Different Perspective of an Orthopaedic Surgeon and a Radiologist].

The authors present an overview of the commonly used techniques and new trends of the cartilage imaging, especially postoperatively, and also discuss the potential of MRI imaging of the cartilage from the perspective of an experienced orthopaedic surgeon. In conclusion, the authors propose possible explanations for the potential discrepancies between the MRI and the arthroscopic findings. Hyaline cartilage damage and subsequent reparation of this tissue is one of the topical issues of orthopaedics and traumatology.

[Growth Guidance System in Treatment of Early Onset Scoliosis].

PURPOSE OF THE STUDY The Growth Guidance System (GGS) represent a relatively new alternative to the traditional growing systems used for the treatment of early onset scoliosis. Ranking among the main aims of this surgical treatment is a three-dimensional correction of the deformity, maintenance of spinal growth and postponement of the necessity of final treatment by spondylodesis. MATERIAL AND METHODS Our study retrospectively evaluates the results of surgical correction in a group of 35 patients treated by GGS technique.

[Arthroscopic Treatment of Chronic Retrocalcaneal Bursitis - Endoscopic Calcaneoplasty].

INTRODUCTION The authors evaluate the results of endoscopic treatment and analyse the causes of persisting difficulties in retrocalcaneal bursitis unresponsive to conservative treatment. Stated as one of the causes is the possible chronic irritation of minor/partial tears of anterior parts of the distal portion of the Achilles tendon, which have no chance to heal due to continued overload and impingement syndrome of the superior prominence of the calcaneal tubercle. MATERIAL AND METHODS The authors evaluate the group of 24 patients (10 women and 14 men) diagnosed with retrocalcaneal bursitis, who reported more than 12 months of difficulties and in whom the conservative therapy options have already been exhausted.

[S2 Alar-Iliac Screws in Fixation and Correction of Combined Neuromuscular Spinal and Pelvic Deformities].

PURPOSE OF THE STUDY Neuromuscular deformities of the spine represent surgically uneasy to solve problems as well as serious handicaps causing sitting instability, pressure ulcers as well as pain. The aim of our study is to conduct a retrospective clinical analysis of the results of surgical correction of these deformities. This paper presents the use of a recent technique of sacral-alar-iliac (S2AI) screws and its comparison with other techniques of pelvic stabilisation.

Contrast-enhanced ultrasonography.

Review summarizes state of the art of contrast-enhanced ultrasonography (CEUS), pinpoints technical basics and also economical comparison with other imaging methods. Most often indications of CEUS in different anatomical regions with differential diagnosis are discussed.

[Polymyalgia rheumatica].

Polymyalgia rheumatica is the most frequent inflammatory disease of people over 50 years of age. It mainly affects the Caucasian race and roughly 2-3 times as many women. From the viewpoint of etiology, polymyalgia rheumatica is a complex disease.

[Scheuermann's Hyperkyphosis - Posterior-Only Surgical Approach Using the Smith-Petersen Osteotomies].

PURPOSE OF THE STUDY Evaluation of efficiency and safety in surgically treated patients with Scheuermann hyperkyphosis using posterior-only surgical approach. MATERIAL AND METHODS Our study retrospectively evaluates the results of surgical correction in group of 20 patients with Scheuermann's hyperkyphosis, with an average age of 13 years and 8 month and with follow-up 4 years and 5 month. We evaluated changes of thoracic kyphosis as well as lumbar lordosis in correlation with surgical correction.

F-FDG PET/CT in polymyalgia rheumatica-a pictorial review.

Polymyalgia rheumatica (PMR) is one of the inflammatory rheumatic diseases that can potentially be detected by positron emission tomography/CT. High fluorine-18 fludeoxyglucose (F-FDG) accumulation around the shoulders, sternoclavicular and hip joints are the most common pre-treatment features of patients with PMR. Another common sign is increased F-FDG uptake in extra-articular regions between columnal spinous processes, near ischial tuberosities and in the praepubic area.

PET/CT imaging in polymyalgia rheumatica: praepubic F-FDG uptake correlates with pectineus and adductor longus muscles enthesitis and with tenosynovitis.

Background: The role of F-fluorodeoxyglucose positron emission computed tomography (F-FDG PET/CT) is increasing in the diagnosis of polymyalgia rheumatica (PMR), one of the most common inflammatory rheumatic diseases. In addition to other locations, increased F-FDG accumulation has been detected in the praepubic region in some patients. However, a deeper description and pathophysiological explanation of this increased praepubic accumulation has been lacking.

[High-Resolution MR Examination of the Scapholunate Ligament using a Microscopic Coil: Comparison with Direct MR Arthrography and Arthroscopy Findings].

PURPOSE OF THE STUDY Scapholunate dissociation is a clinically most frequently diagnosed form of carpal instability. The aim of this study was to compare high resolution MRI using a microscopic coil with direct MRI arthrography in patients with suspected scapholunate ligament lesions and compare the results with arthroscopy findings and Geissler's arthroscopy classification. MATERIAL AND METHODS A prospective study was carried out in 47 patients (average age, 30.

Spinal Cord MR Diffusion Properties in Patients with Degenerative Cervical Cord Compression.

Background And Purpose: Diffusion tensor imaging (DTI) has previously been used as a biomarker of myelopathy in patients with degenerative cervical cord compression (DCCC). However, many factors may affect the diffusion properties of the spinal cord. This prospective study seeks to identify sources of variability in spinal cord DTI parameters in both DCCC patients and healthy subjects.

Diffusion Tensor Imaging in Radiation-Induced Myelopathy.

Radiation myelopathy (RM) is a rare complication of spinal cord irradiation. Diagnosis is based on the history of radiotherapy, laboratory tests, and magnetic resonance imaging of the spinal cord. The MRI findings may nevertheless be quite unspecific.