Thursday, December 27, 2012

Melorheostosis

18year old girl with MRI hand. Evidence of sclerosis & cortical thickening involving the 2nd & 3rd metacarpals along with sclerosis in the capitate bone with obliteration of the medullary cavity in these bones. Such appearance with predominant cortical thickening in the metacarpals suggests melorheostosis.  Melorheostosis (also known as Leri disease) is an uncommon mesenchymal dysplasia manifesting as regions of sclerosing bone with a characteristic dripping wax appearance or flowing candle wax appearance. The condition, especially in childhood, is usually asymptomatic, with the condition diagnosed as an incidental finding on radiographs obtained for another purpose.The name is derived from the Greek words for limb (melos) and flow (rhe), due to its characteristic appearance of flowing hyperostosis.

Tuesday, December 25, 2012

Merry Xmas

Faith makes all things possible, Hope makes all things work, Love makes all things beautiful, May you have all the three for this Christmas. Merry Christmas to all readers and blog followers.
Happy New year!!

Invitation to talk on Entrepreneurship in IRIA 2013


Dear Reader

It gives us immense pleasure to inform you that our Director Dr Sumer Sethi will be delivering a talk on "Entrepreneurship in Radiology" in IRIA-2013 Indore on 6th January. Most of you know Dr Sumer Sethi, dynamic speaker and known entrepreneur who heads Telerad Providers, one of the leading Teleradiology firms in India. Few people know he also heads Delhi Academy of Medical Sciences which is today the largest Pan India footprint medical education company. Known blogger, and unique blend of academic excellence and entrepreneurship, Dr Sethi's talks are motivating and refreshing. This unique topic allotted to him by the scientific committee is probably the need of the hour for the young radiologists today to seek greater control over the field which is now largely owned by investors. Further Dr Sethi will be available in Indore conference venue for the whole day on 6 th January, and if any one wants to meet him personally, just drop us an email to deepak@teleradproviders.com or rambir@teleradproviders.com and we will gladly schedule an appointment.

Team Telerad Providers.

Tuesday, December 18, 2012

History of MRI



  • Isidor Isaac Rabi first described the NMR phenomenon in 1938 
  • Felix Bloch and Edward Purcell :: NMR phenomenon in liquids and in solids this laid the physical basis for MRI.
  • 1971: Raymond Damadian used NMR in biomedical applications, measuring T1 and T2 relaxation times in rat tumors.
  •  Paul C. Lauterbur and Peter Mansfield  described the use of magnetic field gradients to localize NMR signals in 1973, a technical development that laid the foundation for MRI as it is currently performed. Lauterbur and Mansfield got the 2003 Nobel Prize in Physiology/Medicine. 
  • July 1977, Damadian’s machine, Indomitable produced crude images of the human thorax. First human images. 


Friday, December 14, 2012

Grey matter heterotopia-MRI


Grey matter heterotopias are characterised by interruption of normal neuronal migration from near the ventricle to the cortex. This patient presented with refractory seizures with MRI showed nodular subependymal & subcortical heterotopia. Grey matter heterotopias can be divided macroscopically into:

nodular heterotopias

  1. subependymal heterotopia : most common
  2. subcortical heterotopia


diffuse heterotopias

  1. band heterotopia 
  2. lissencephaly 
  3. laminar heterotopia




Monday, December 10, 2012

MRI Goggles for Children

Out of the box thinking by Radiologists in UCSF Benioff Children’s Hospital  by using video goggles and  help patients relax and hold still.  While children enjoy their favorite movies and tend to remain quiet and still so that radiologists can obtain high quality images with the MRI.  

Further reading on UCSF Blog.

Aggressive Vertebral Hemangioma

Evidence of altered signal intensity involving the L2 vertebral body appearing hyperintense on both T1 and T2 weighted images with striated appearance, mild posterior convexity , epidural & right paravertebral extension. Characteristic polka dot appearance is noted on axial images.  Imaging characteristics likely indicate aggressive hemangioma, with extensions as described.  Vertebral hemangioma (VH) is virtually vascular malformation, which is usually asymptomatic. Only 3.7 % of VH may become active and symptomatic, and 1 % may invade the spinal canal and/or paravertebral space. 






Wednesday, December 05, 2012

Pseudoachondroplasia-Case Report


                            

Case: 11years old male with short stature  93cm.

Radiographic diagnosis of Pseudoachondroplasia is ideally made based on radiographs.

At a minimum, AP views of the hips, knees, and hands and a lateral view of the spine are required Findings include the following:
Radiographs of 11 years old male child showing the changes typical of pseudoachondroplasia
·         Delayed epiphyseal ossification and irregular epiphyses and metaphyses of the long bones (consistent)
·         Small capital femoral epiphyses, short femoral necks and irregular, flared metaphyseal borders; small pelvis and poorly modeled acetabulae with irregular margins that may be sclerotic, especially in older individuals
·         Anterior beaking or tonguing of the vertebral bodies on lateral view.
      This distinctive appearance of the vertebrae normalizes with age, emphasizing the
      importance of obtaining in childhood the radiographs to be used in diagnosis .






Characteristic features of pseudoachondroplasia include short arms and legs, a waddling walk, early-onset joint pain (osteoarthritis), and a limited range of motion at the elbows and hips. Some individuals develop abnormal curvatures of the spine (scoliosis and/or lordosis) during childhood. People with pseudoachondroplasia have normal facial features, head size, and intelligence. Case Submitted by DR ANAND SHRIKANT GAJAKOS, CONSULTANT RADIOLOGIST   --ARMCHRC, SOLAPUR

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