scholarly journals Multidetector computed tomography in acute joint fractures

2005 ◽  
Vol 46 (6) ◽  
pp. 587-598 ◽  
Author(s):  
V. V. Haapamäki ◽  
M. J. Kiuru ◽  
A. O. Mustonen ◽  
S. K. Koskinen
Keyword(s):  
Computed Tomography ◽  
Multidetector Ct ◽  
Imaging Modality ◽  
Spiral Ct ◽  
Conventional Radiography ◽  
Diagnostic Role ◽  
Joint Fractures ◽  
Occult Fractures ◽  
Primary Evaluation ◽  
Joint Trauma

Conventional radiography plays an essential diagnostic role in the primary evaluation of acute joint trauma. In complex fractures, however, computed tomography (CT) is an imaging modality often used second to radiography. As a result of technical breakthroughs in the field, multidetector CT (MDCT) allows faster imaging and better temporal, spatial, and contrast resolution compared with conventional single-slice spiral CT. MDCT with multiplanar reformation is helpful in disclosing fracture patterns, particularly in complex joint fractures, where they reveal occult fractures and show the exact number of fracture components and their degree of displacement.

Diagnostic modalities for distal radioulnar joint

2016 ◽  
Vol 42 (4) ◽  
pp. 395-404 ◽  
Author(s):  
S. Jens ◽  
T. Luijkx ◽  
F. F. Smithuis ◽  
M. Maas
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Magnetic Resonance ◽  
Imaging Modality ◽  
Conventional Radiography ◽  
Distal Radioulnar Joint ◽  
Resonance Imaging ◽  
Radioulnar Joint ◽  
Joint Pathology ◽  
Imaging Characteristics

The first imaging modality in patients suspected of distal radioulnar joint pathology should be conventional radiography to exclude or diagnose wrist pathology including osteoarthritis, rheumatoid arthritis, calcium pyrophosphate deposition disease, (healed) fractures, or impaction syndromes. When conventional radiography is inconclusive, high resolution 3 Tesla magnetic resonance imaging is advised. We provide a broad overview of the literature regarding the use of intra-articular contrast both with computed tomography (CTA) or magnetic resonance imaging (MRA). Conventional arthrography and unenhanced computed tomography are not indicated. This article discusses the most useful imaging techniques in terms of clinical indications, patient positioning, technical imaging requirements, and diagnostic performance in patients with suspected distal radioulnar joint pathology. Furthermore, the most prevalent pathologies are discussed, with the focus on imaging characteristics in both stable and unstable distal radioulnar joints.

scholarly journals ROLE OF MULTI-SLICE SPIRAL CT IN EVALUATION OF NECK MASS WITH CYTOLOGICAL CORRELATION

2020 ◽  
pp. 11-13
Author(s):  
Das Runa ◽  
Aniruddha Ghosh
Keyword(s):  
Computed Tomography ◽  
Imaging Modality ◽  
Spiral Ct ◽  
Neck Mass ◽  
Display Time ◽  
Neck Masses ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Anatomical Localization

Abstract: The swellings in the neck can be caused by innumerable pathological lesions arising from the various anatomical structures lying therein. Multi-Detector CT (MDCT) has now become the new standard in a radiological imaging modality. The utilization of MDCT has resulted in improved resolution and considerable reductions in scan acquisition and display time. Aim and Objective: This study is an effort to assess the role of MDCT in detection, characterization and diagnosing neck pathologies that correlate cytologically. Material and Methods: A study of 50 cases in a clinically suspected neck mass was studied for 1 year. Contrast-enhanced Ct neck was done and Specific CT criteria were used to characterize the mass so that a probable diagnosis could be made. MDCT diagnoses then compared with cytological results to conclude the efficiency of MDCT analysis of neck mass. Conclusion: Multi-detector computed tomography helps in precise anatomical localization and characterization of neck masses. Hence, it will be a method of choice for initial evaluation, preoperative planning, and biopsy targeting and postoperative follow-up. Key Words: Neck mass; Cervical lymph node; Computed tomography; Carcinoma.

Common carotid artery pseudoaneurysm after neck dissection: colour Doppler ultrasound and multidetector computed tomography findings

2006 ◽  
Vol 121 (5) ◽  
pp. 497-500 ◽  
Author(s):  
N Flor ◽  
F Sardanelli ◽  
G Ghilardi ◽  
A Tentori ◽  
G Franceschelli ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Carotid Artery ◽  
Neck Dissection ◽  
Multidetector Computed Tomography ◽  
Doppler Ultrasound ◽  
Common Carotid Artery ◽  
Multidetector Ct ◽  
Imaging Modality ◽  
Conventional Angiography ◽  
Artery Pseudoaneurysm

Common carotid artery pseudoaneurysm is a rare disease, which has been previously unreported in association with neck dissection. We describe the Doppler ultrasound and multidetector computed tomography (CT) findings of a case of carotid pseudoaneurysm, one month after pharyngolaryngectomy with bilateral neck dissection. Multidetector CT confirmed the diagnosis made on the basis of Doppler ultrasound; the high image quality of axial and three-dimensional reconstructions avoided the need for pre-operative conventional angiography. In the presence of a pulsatile cervical mass after neck surgery, pseudoaneurysm of the carotid artery should be included in the differential diagnosis, and multidetector CT can be the sole pre-operative diagnostic imaging modality.

Imaging

2011 ◽  
Author(s):  
Joong Mo Ahn ◽  
Yusuf Menda ◽  
Georges Y. El-Khoury
Keyword(s):  
Computed Tomography ◽  
High Speed ◽  
Imaging Modality ◽  
Soft Tissue Injuries ◽  
Conventional Radiography ◽  
Trauma Patients ◽  
Musculoskeletal Problem ◽  
Advantages And Disadvantages ◽  
Positron Emission ◽  
Multiple Trauma Patients

♦ Each modality of imaging—digital radiography, multidetector computed tomography (MDCT), magnetic resonance imaging (MRI), ultrasound, and nuclear medicine studies—has its own advantages and disadvantages♦ Conventional radiography is the best for initial evaluation of a musculoskeletal problem♦ MDCT rapid survey of multiple trauma patients is easily performed using the new high speed computed tomography scanners♦ MRI is the imaging modality of choice for internal derangement of the knee and other soft tissue injuries♦ Radionuclide bone imaging is most suitable for screening the whole skeleton for metastases♦ Positron emission tomography is useful for identification of tumour, inflammation, and infection.

The Diagnostic Role of Ultrasound in the Chest

Ultrasound ◽  
2007 ◽  
Vol 15 (3) ◽  
pp. 148-158 ◽  
Author(s):  
Nicola J. Stephens ◽  
James M. Pilcher
Keyword(s):  
Computed Tomography ◽  
Critical Care ◽  
Ionizing Radiation ◽  
Care Setting ◽  
Plain Radiograph ◽  
Conventional Radiography ◽  
Dynamic Imaging ◽  
Complementary Role ◽  
Diagnostic Role

Although the plain radiograph and computed tomography remain undoubtedly the primary imaging modalities in the investigation of chest pathology, ultrasound can play an important complementary role, both in the diagnostic workup of a patient and in their subsequent management. Its lack of ionizing radiation, bedside availability and dynamic imaging capacity afford ultrasound certain advantages over other techniques; particularly in the critical care setting where conventional radiography is often suboptimal. This article reviews the technique and diagnostic application of ultrasound in the assessment of pathologies of the diaphragm, pleura, lung, mediastinum and chest wall.

scholarly journals Evaluation of Neck Mass by Multidetector Computed Tomography and Histopathological Comparison.

2018 ◽  
Vol 43 (3) ◽  
pp. 115-119
Author(s):  
Umme Iffat Siddiqua ◽  
Bibek Ananda Halder ◽  
Rued Hossain ◽  
Shyamal Kumar Roy ◽  
Abdullah Al-Amin ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Multidetector Computed Tomography ◽  
Negative Predictive Value ◽  
Predictive Value ◽  
Multidetector Ct ◽  
Imaging Modality ◽  
Neck Mass ◽  
Histopathological Diagnosis ◽  
Ct Scanner ◽  
Cross Sectional

Diagnostic usefulness of multidetector computed tomography (MDCT) scan in the evaluation of neck mass was assessed in this study in terms of sensitivity, specificity, positive and negative predictive value and accuracy in respect to characterise the lesion as benign and malignant, based on different parameters by comparing computed tomography and histopathological findings. This cross sectional study was carried out on 57 patients in the Department of Radiology and Imaging, Sir Salimullah Medical College and Mitford Hospital, Dhaka from January 2014 to December 2015, with a 16 slice multidetector CT scanner and the reports were compared to histopathological diagnosis. Out of 57 patients, 37 (64.9%) and 20 (35.1%) were diagnosed as malignant and benign lesions respectively, with a sensitivity of 94.6%, specificity 95%, positive predictive value 97.2%, negative predictive value 90.5% and diagnostic accuracy of 94.7%. As an imaging modality, thus, MDCT proved to be a useful tool for assessing and characterization of neck mass as benign and malignant, especially in this part of the continent, and is essential in planning surgical approach and predicting prognosis.

Predictive indicators for thyroid cartilage involvement in carcinoma of the larynx seen on spiral computed tomography scans

2006 ◽  
Vol 120 (10) ◽  
pp. 857-860 ◽  
Author(s):  
R Fernandes ◽  
P Gopalan ◽  
C Spyridakou ◽  
G Joseph ◽  
M Kumar
Keyword(s):  
Computed Tomography ◽  
Soft Tissue ◽  
Imaging Modality ◽  
Thyroid Cartilage ◽  
Spiral Ct ◽  
Spiral Computed Tomography ◽  
Spiral Computed ◽  
Cross Sectional ◽  
Specific Criterion ◽  
Carcinoma Of The Larynx

Objectives: Recent studies have shown that the spiral computed tomography (CT) scan is a sensitive imaging modality for predicting neoplastic invasion of thyroid cartilage. The objectives of our study were: to assess the accuracy of pre-operative spiral CT in predicting thyroid cartilage involvement in patients with carcinoma of the larynx; and to elucidate the factors that would accurately indicate cartilage involvement.Material and methods: Medical records, including spiral CT scans and pathological reports, were reviewed for 27 patients who had undergone laryngectomy in two major hospitals in south Wales. A consultant radiologist with special interest in cross-sectional imaging re-evaluated the scans to assess neoplastic involvement of the thyroid cartilage, based on definite, objective criteria. These criteria included: soft tissue asymmetry; loss of medullary space; spiky or irregular surface; distortion of cartilage framework; and abnormal soft tissue on both sides of the cartilage. The radiological findings were then correlated with the histopathological evidence of cartilage invasion by the tumour.Results: Out of the 27 cases, 15 had evidence of histological invasion of thyroid cartilage. The most specific criterion to predict thyroid cartilage involvement was the presence of tumour on both sides of the cartilage (specificity of 91 per cent, sensitivity of 66 per cent). Combining two criteria increased both the sensitivity and the specificity to 86 and 91 per cent, respectively.

Role of Computerized Tomography as Prime Imaging Modality in the Evaluation of Traumatic Brain Injury

2017 ◽  
Vol 2 (1) ◽  
pp. 17-23
Author(s):  
Sagar Tyagi ◽  
Atul Mehrotra ◽  
Pradeep Parakh ◽  
Parveen Hans
Keyword(s):  
Computed Tomography ◽  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Head Injury ◽  
Computerized Tomography ◽  
Multidetector Ct ◽  
Imaging Modality ◽  
Craniocerebral Trauma ◽  
Traumatic Head Injury

ABSTRACT Introduction Trauma is the most common worldwide cause of death and disability in young adults. Neurotrauma is one of the most frequent indications for emergent neuroimaging because imaging plays such a key role in patient triage and management. Aims and objectives (1) To assess the role of computed tomography (CT) in patients with traumatic head injury. (2) To localize trauma to a particular extraaxial and intraaxial compartment and to delineate various spectrum of hemorrhages that occur in craniocerebral trauma with the aid of CT. (3) To evaluate the value of early CT imaging with patient prognosis. Materials and methods This is a prospective study carried out in 100 patients with traumatic brain injury, referred to the Department of Radiodiagnosis, Rohilkhand Medical College & Hospital, Bareilly, Uttar Pradesh, India, for CT scan during a period of 1 year. The patients were scanned using GE Bright Speed 16-Slice multidetector CT. Conclusion Computed tomography is the single-most informative diagnostic modality in the evaluation of a patient with a head injury and should be considered the first imaging of choice in acute head injury as it forms the cornerstone for rapid and effective diagnosis. How to cite this article Hans P, Mehrotra A, Kumar P, Agarwal M, Kumar L, Parakh P, Tyagi S. Role of Computerized Tomography as Prime Imaging Modality in the Evaluation of Traumatic Brain Injury. Int J Adv Integ Med Sci 2017;2(1):17-23.

Radiography and computed tomography imaging of osteoarthritis

2016 ◽  
Author(s):  
Daichi Hayashi ◽  
Ali Guermazi ◽  
Frank W. Roemer
Keyword(s):  
Computed Tomography ◽  
Imaging Modality ◽  
Joint Damage ◽  
Conventional Radiography ◽  
Longitudinal Change ◽  
Cartilage Defects ◽  
Imaging Data ◽  
Ongoing Research ◽  
Ct Arthrography ◽  
Additional Tool

Osteoarthritis (OA) is the most prevalent joint disorder in the elderly worldwide and there is still no effective treatment, other than joint arthroplasty for end-stage OA, despite ongoing research efforts. Imaging is essential for assessing structural joint damage and disease progression. Radiography is the most widely used first-line imaging modality for structural OA evaluation. Its inherent limitations should be noted including lack of ability to directly visualize most OA-related pathological features in and around the joint, lack of sensitivity to longitudinal change and missing specificity of joint space narrowing, and technical difficulties regarding reproducibility of positioning of the joints in longitudinal studies. Magnetic resonance imaging (MRI) is widely applied in epidemiological studies and clinical trials. Computed tomography (CT) is an important additional tool that offers insight into high-resolution bony anatomical details and allows three-dimensional post-processing of imaging data, which is of particular importance for orthopaedic surgery planning. However, its major disadvantage is limitations in the assessment of soft tissue structures compared to MRI. CT arthrography can be useful in evaluation of focal cartilage defects or meniscal tears; however, its applicability may be limited due to its invasive nature. This chapter describes the roles and limitations of both conventional radiography and CT, including CT arthrography, in clinical practice and OA research. The emphasis is on OA of the knee, but other joints are also mentioned where appropriate.

Imaging of Bone Sarcomas

2007 ◽  
Vol 5 (4) ◽  
pp. 438-447 ◽  
Author(s):  
Judd E. Cummings ◽  
J. Andrew Ellzey ◽  
Robert K. Heck
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Positron Emission Tomography ◽  
Bone Tumors ◽  
Imaging Modality ◽  
Conventional Radiography ◽  
Emission Tomography ◽  
Resonance Imaging ◽  
Positron Emission ◽  
Bone Sarcomas

Identification, staging, and treatment of bone sarcomas rely on both clinical and imaging evaluations. Although conventional radiography remains the primary imaging modality for characterizing bone tumors, bone scintigraphy, computed tomography, magnetic resonance imaging, and positron emission tomography can each add information for staging and treatment planning.

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