Role Of Imaging In Assessment Research Articles

SWI as a promising tool comparable to CT perfusion in evaluation of acute cerebral infarction

BackgroundThe recent advances in magnetic resonance imaging techniques have improved the assessment of acute stroke. Susceptibility weighted imaging (SWI) has a crucial role in the management plan of cerebral ischemia. This study was aimed to assess the role of susceptibility-weighted imaging in assessment of area at risk (pneumbra) compared to CT perfusion in patients with acute ischemic infraction.ResultsWe found the mean aspect score for SWI 4 ± 1.4 and mean aspect for DWI 7.6 ± 1.2; in addition, mean aspect for CTP was 4.6 ± 1.3. Significant difference is noted between the SWI and DWI with significant p value. But there is no significant difference between the SWI and CTP ASPECT scores.ConclusionSWI is a promising technique and comparable to CT perfusion is evaluation of penumbra in the settings of acute infarction.

Role of imaging in assessment and detection of complications after bariatric surgery

BackgroundBariatric surgery is performed to control morbid obesity secondary to failed medical approaches. Practical knowledge of post-surgical anatomy allows accurate interpretation of imaging findings related to normal post-surgical anatomy and common post-surgical complications.The purpose of this study was to highlight the role of imaging in the assessment and detection of complications after bariatric surgery.ResultsThis prospective study included 49 patients who had bariatric surgery. Sleeve gastrectomy was the most common bariatric surgery. The leak was the commonest complication (12%). The sensitivity of upper GI series for diagnosis of post-operative complication after bariatric surgery was 70% and specificity 94% while the sensitivity of CT study was 95% and specificity 95%.ConclusionCT has a golden role in the diagnosis of post-operative complications. Both post-contrast CT and upper GI series should be used in diagnosing complications following bariatric surgery. US is useful for diagnosis of a superficial problem.

Radiology in Neurolaryngology.

The role of imaging in assessment of neurolaryngology will predominantly involve the assessment of pathology along that of laryngeal nerve pathways. The anatomical pathways of the vagus and laryngeal nerves are well described in standard anatomical textbooks and will not be detailed here. Whilst there are 3 principle laryngeal nerves/branches, the recurrent laryngeal nerve will clearly constitute the mainstay of imaging input. This chapter will elaborate on the pathology encountered at the various levels and the imaging characteristics of these disorders. Prior to this, there will be a summary of normal laryngeal imaging appearances to familiarise with the characteristics of radiological anatomy.

Role of magnetic resonance imaging in assessment of cervical spine injuries and clinico-neurological outcome at tertiary care centre

Role of magnetic resonance imaging in assessment of cervical spine injuries and clinico-neurological outcome at tertiary care centre

Role of Echocardiographic Tissue Doppler Imaging in Assessment of Myocardial Diastolic Dysfunction in Children with Diffuse Lung Diseases

Role of Echocardiographic Tissue Doppler Imaging in Assessment of Myocardial Diastolic Dysfunction in Children with Diffuse Lung Diseases

OC27.01: Role of imaging in assessment of gestational trophoblastic neoplasia and transvaginal Doppler ultrasound versus pelvic dynamic contrast enhanced MRI

OC27.01: Role of imaging in assessment of gestational trophoblastic neoplasia and transvaginal Doppler ultrasound versus pelvic dynamic contrast enhanced <scp>MRI</scp>

Nuclear Imaging for Assessment of Myocardial Perfusion, Metabolism, and Innervation in Hypertrophic Cardiomyopathy

Hypertrophic cardiomyopathy, the most common genetic disease of the heart, is characterized by diverse cardiac phenotypic expression, presentation, clinical course, response to therapy, and outcomes. Disease causing mutations, genetic modifiers, and environmental factors are responsible for the diversity of morphological and clinical manifestations of this disease. Over the last four decades, cardiac nuclear imaging has made crucial contributions to our current understanding of the pathophysiology of HCM and has provided clinical tools for targeted management of patients. The aim of this manuscript is to review the role of nuclear imaging in assessment of myocardial perfusion, metabolism, and autonomic innervation in HCM.

Correlation between the Role of Scheimpflug Imaging in Assessment of Cataract and Phacoemulsification Settings

Correlation between the Role of Scheimpflug Imaging in Assessment of Cataract and Phacoemulsification Settings

Hermansky-Pudlak Syndrome: High-Resolution Computed Tomography Findings and Literature Review

Hermansky-Pudlak syndrome (HPS) is a rare autosomal recessive disorder characterized by platelet dysfunction, oculocutaneous albinism, and life-threatening pulmonary fibrosis. There are 7 HPS genotypes, with type 1 being the most severe. Pulmonary involvement usually begins during the third or fourth decades of life, with fibrosis being the most common cause of death. We present imaging and histopathologic findings of a 16-year-old Saudi adolescent girl with HPS-related pulmonary fibrosis, emphasizing on the role of imaging in assessment of disease severity and prognosis.

Hermansky-pudlak syndrome complicated by pulmonary fibrosis: radiologic-pathologic correlation and review of pulmonary complications.

Hermansky–Pudlak syndrome (HPS) is a rare autosomal recessive disorder characterized by oculocutaneous hypopigmentation, platelet dysfunction, and in many cases, life-threatening pulmonary fibrosis. We report the clinical course, imaging, and postmortem findings of a 38-year-old female with HPS-related progressive pulmonary fibrosis, highlighting the role of imaging in assessment of disease severity and prognosis.

Role of imaging in assessment of atrial fibrosis in patients with atrial fibrillation: state-of-the-art review

Atrial fibrillation (AF) is the most common arrhythmia in the world. Despite the large number of studies focused on the causes and mechanisms of AF, it remains a clinical challenge. Atrial electrical and structural remodelling caused by AF is responsible for the perpetuation of the arrhythmia. However, a validated noninvasive method for assessment of atrial fibrosis in clinical practice is lacking. In this review, we aim to present an update about the origins and mechanisms of atrial remodelling, particularly focusing on atrial fibrosis, and compare imaging techniques that can detect atrial changes and greatly contribute to the clinical management of patients with AF.

Imaging: Strategies, Controversies, and Opportunities

At a Clinical and Translational Cancer Research Think Tank meeting sponsored by the American Association for Cancer Research in 2010, one of the breakout groups focused on new technologies and imaging. The discussions emphasized new opportunities in translational imaging and its role in the future, rather than established techniques that are currently in clinical practice. New imaging methods under development are changing the approach of imaging science from a focus on the anatomic description of disease to a focus on the molecular basis of disease. Broadly referred to as molecular imaging, these new strategies directly embrace the incorporation of cell and molecular biology concepts and techniques into image generation and can involve the introduction of genes into cells with the explicit intent to image the end products of gene expression with external imaging devices. These new methods hold the promise of providing clinicians with (i) robust linkages between cell and animal models and clinical trials, (ii) in vivo biomarkers that can be measured repeatedly and sequentially over time to observe dynamic disease processes and responses to treatment, and (iii) tools for preselection and patient population enrichment in phase II and III trials to improve outcomes and better direct treatment. These strategies provide real-time pharmacodynamic parameters and can be powerful tools to monitor therapeutic effects in a spatially and tissue-specific manner, which may reduce cost during drug development, because pharmacodynamic studies in animals can inform clinical trials and accelerate the translation process. The Imaging Response Assessment Team (IRAT) program serves as an example of how imaging techniques can be incorporated into clinical trials. IRATs work to advance the role of imaging in assessment of response to therapy and to increase the application of quantitative anatomic, functional, and molecular imaging endpoints in clinical trials, and imaging strategies that will lead to individualized patient care.

Imaging of salivary gland tumours

Salivary gland neoplasms account for <3% of all tumors. Most of them are benign and parotid gland is the commonest site. As a general rule, the smaller the involved salivary gland, the higher is the possibility of the tumor being malignant. The role of imaging in assessment of salivary gland tumour is to define intra-glandular vs. extra-glandular location, detect malignant features, assess local extension and invasion, detect nodal metastases and systemic involvement. Image guided fine needle aspiration cytology provides a safe means to obtain cytological confirmation. For lesions in the superficial parotid and submandibular gland, ultrasound is an ideal tool for initial assessment. These are superficial structures accessible by high resolution ultrasound and FNAC which provides excellent resolution and tissue characterization without a radiation hazard. Nodal involvement can also be assessed. If deep tissue extension is suspected or malignancy confirmed on cytology, an MRI or CT is mandatory to evaluate tumour extent, local invasion and perineural spread. For all tumours in the sublingual gland, MRI should be performed as the risk of malignancy is high. For lesions of the deep lobe of parotid gland and the minor salivary glands, MRI and CT are the modalities of choice. Ultrasound has limited visualization of the deep lobe of parotid gland which is obscured by the mandible. Minor salivary gland lesions in the mucosa of oral cavity, pharynx and tracheo-bronchial tree, are also not accessible by conventional ultrasound. Recent study suggests that MR spectroscopy may differentiate malignant and benign salivary gland tumours as well as distinguishing Warthin's tumor from pleomorphic adenoma. However, its role in clinical practice is not well established. Similarly, the role of nuclear medicine and PET scan, in imaging of parotid masses is limited. Sialography is used to delineate the salivary ductal system and has limited role in assessment of tumour extent.

250 The role of pulse wave Doppler tissue imaging in assessment of right ventricular diastolic dysfunction in patients with severe chronic obstructive pulmonary disease

250 The role of pulse wave Doppler tissue imaging in assessment of right ventricular diastolic dysfunction in patients with severe chronic obstructive pulmonary disease

Hyperthyroidism After Radiographic Contrast in a Patient With Separate Cervical and Intrathoracic Multinodular Goiters

The authors report a case of multinodular goiter in both cervical thyroid and aberrant intrathoracic thyroid tissue which was associated with thyrotoxicosis after the use of radiographic contrast material. The role of correlative imaging in assessment of cervical and anterior mediastinal masses and the phenomenon of iodine-induced thyrotoxicosis are also discussed.

Magnetic resonance imaging of traumatized ligaments of the ankle.

The clinical examination of acute soft tissue injuries of the ankle does not necessarily help to delineate the extent of injury. Ankle stress radiographs and arthrography have been applied for a more accurate assessment of the actual degree of ligamentous damage. However, these studies do not define the level of the ligament tear of the relationship of torn ligament ends to one another. This information would seem to be valuable in deciding whether a conservative or surgical approach would be advisable. The following study evaluated the possible role of magnetic resonance imaging in assessment of these injuries. The ability to assess ankle ligaments was first undertaken. Once this was successfully performed, magnetic resonance imaging was used to assess the degree of ligament damage in 15 patients. Magnetic resonance imaging proved to be comparable to arthrography. It also provided additional valuable information.