616 results found
Article
3D conformal radiation therapy
3D conformal radiation therapy (3D-CRT) is a radiation therapy technique that involves CT planning where the volume to be treated is defined on a 3D data set. Therefore, organs at risk can also be delineated to shield these and reduce treatment side effects. Radiotherapy planning software is use...
Article
3D printing
3D printing, a term often used synonymously with additive manufacturing, is a process of creating objects from three-dimensional digital information. In most cases, 3D printing is, in fact, additive manufacturing, a process in which objects are built by adding material layer by layer. This proce...
Case
3D printing process (creative commons)
Published
14 Jan 2020
71% complete
CT
Photo
Article
Abdominal aortic aneurysm
Abdominal aortic aneurysms (AAA) are focal dilatations of the abdominal aorta measuring 50% greater than the proximal normal segment or >3 cm in maximum diameter.
They can be confined to the abdominal aorta or continue from the thoracic aorta as part of a thoraco-abdominal aneurysm (TAAA).
The...
Article
Abdominal aortic aneurysm (summary)
This is a basic article for medical students and other non-radiologists
Abdominal aortic aneurysms (AAA) are focal dilatations of the abdominal aorta that are 50% greater than the proximal normal segment or >3 cm in maximum diameter.
Reference article
This is a summary article; read more in o...
Case
Abdominal aortic aneurysm with arterial thrombus
Published
15 Sep 2023
94% complete
Ultrasound
Case
Abdominal aortic thrombosis
Published
26 Sep 2023
95% complete
CT
Article
Abdominal pain in pregnancy protocol (MRI)
The abdominal pain in pregnancy MRI protocol encompasses a set of MRI sequences for assessment of causes of non-traumatic abdominal pain in pregnancy.
Note: This article aims to frame a general concept of an MRI protocol for the assessment of the abdomen in pregnancy. Protocol specifics will va...
Case
Aberrant right subclavian artery
Published
09 Apr 2017
86% complete
CT
Case
Aberrant right subclavian artery
Published
02 Jul 2023
79% complete
X-ray
Annotated image
Fluoroscopy
Case
Absent distal humeral shaft post trauma
Published
06 Sep 2018
94% complete
X-ray
Article
Absent infrarenal inferior vena cava
An absent infrarenal inferior vena cava can be congenital, due to the failure of development of the posterior cardinal and supracardinal veins, or acquired, as a result of intrauterine or perinatal inferior vena cava thrombosis.
Epidemiology
It is an extremely rare anomaly.
Clinical presentat...
Article
Accessory renal artery
Accessory renal arteries are a common variant of the renal arteries. They are present in ~25% (range 20-30%) of the population and bilateral in ~10% 1. Accurate identification is of utmost importance for surgical planning prior to live donor transplantation 2,3 and renal artery embolization for ...
Article
Acetabular dysplasia
Acetabular dysplasia is referred to as a shallow acetabulum, not being able to provide sufficient coverage for the femoral head and thus leading to instability of the hip joint.
Terminology
Acetabular dysplasia is a form of developmental dysplasia of the hip (DDH) often referred to in the adol...
Article
Acetabular sector angle
The acetabular sector angles are a set of angles, comprising the anterior acetabular sector angle (AASA), the posterior acetabular sector angle (PASA) and horizontal acetabular sector angle (HASA) and are used on cross-sectional imaging, especially pelvic CT, for the evaluation of acetabular cov...
Case
Achilles tendon tear
Published
08 Dec 2018
89% complete
MRI
Case
Acoustic schwannoma - intracanalicular
Published
31 May 2015
71% complete
MRI
Article
Adenocarcinoma in situ, minimally invasive adenocarcinoma and invasive adenocarcinoma of lung
Adenocarcinoma in situ, minimally invasive adenocarcinoma and invasive adenocarcinoma of the lung have replaced the now-defunct term bronchoalveolar carcinoma (BAC).
In 2011 the International Association for the Study of Lung Cancer (IASLC) and several other societies jointly revised the classi...
Case
Anaplastic pleomorphic xanthoastrocytoma
Published
11 Jul 2023
92% complete
MRI
Case
Androgen insensitivity syndrome
Published
24 Jun 2021
95% complete
MRI
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