Tuesday, November 29, 2005

Radiology Gossip Corner-TOM CRUISE TAKES TO SONOGRAPHY


Tom the amateur ob-gyn
Says he's got sonogram gizmo for Katie
Tom Cruise thinks his unborn child is ready for a closeup - lots and lots of closeups.
The movie star told Barbara Walters in an upcoming interview that he bought himself the medical device to give pregnant fiancée Katie Holmes a sonogram whenever he wants.

ANY COMMENTS FROM THE EXPERTS?
Full Article at-

Thursday, November 24, 2005

Image Quiz-GIT



A 30 year old alcoholic presented with severe pain in the epigastrium and back. A contrast enhanced CT was done. What is the diagnosis?
ANSWER-ACUTE NECROTIZING PANCREATITIS
WINNERS-Ravi Kadasne, PG
Leave your answers in the comments section. The correct answer and the winners would be published next week.

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Screening for Subclinical atherosclerosis by carotid ultrasound

Ultrasound-detected carotid plaque as a screening tool for advanced subclinical atherosclerosis.
Wyman RA, Fraizer MC, Keevil JG, Busse KL, Aeschlimann SE, Korcarz CE, Stein JH.
Section of Cardiovascular Medicine, University of Wisconsin Medical School, Madison, Wisconsin, USA.
There is great need for a simple, noninvasive tool that can be used in an office setting to screen for subclinical atherosclerosis. In patients referred for cardiovascular (CV) risk assessment, authors evaluated the ability of ultrasound screening for carotid plaque to identify patients with advanced subclinical atherosclerosis.
Ultrasound detection of carotid plaque helped identify asymptomatic patients with advanced subclinical atherosclerosis. Screening for carotid plaque is easier than determination of CIMT (carotid intima media thickness) and may help detect asymptomatic patients at increased CV risk.
Full Article at-

Wednesday, November 23, 2005

Radiology Resident Information-Commonly asked questions in MD examination

A common problem faced by residents preparing for their MD final exams is what questions are asked in their theory examinations. Here are a few short notes asked in various University exams for MD Radiodiagnosis Final Theory Exam.
TOPIC- RECENT ADVANCES
1. CT ANGIOGRAPHY
2. MR CONTRAST MEDIA
3. PACS IN RADIOLOGY
4. DISCUSS ADVANCES IN FLOUROSCOPY TECHNIQUE WHICH REDUCE THE RADIATION DOSE.
5. ELECTRON BEAM CT
6. MR SPECTROSCOPY
7. VIRTUAL ENDOSCOPY
8. MULTISLICE CT
9. HARMONIC IMAGING
10. RECENT CONTRAST MEDIA IN USG
11. CT ANGIOGRAPHY VS MR ANGIOGRAPHY
12. DIGITAL RADIOGRAPHY, COMPUTED RADIOGRAPHY
13. CLINICAL APPLICATIONS OF SPIRAL CT
14. 3D CT ANGIOGRAPHY
15. MR CONTRAST MEDIA
16. PET
17. UPDATE IN VASCULAR CONTRAST MEDIA
18. INTRAOPERATIVE US
19. FUNCTIONAL IMAGING OF BRAIN
20. ADVANCES IN US TECHNIQUE
21. BASIC DIFFEREN
CES BETWEEN PET AND SPECT, DESCRIBE VARIOUS RADIOLABELLED PHARMACEUTICALS USED IN IMAGING OF VARIOUS ORGANS.
22.IVUS
23. DESCRIBE THE CLINICAL APPLICATION OF MULTIPLANAR REFORMATION AND 3D IMAGING IN CT.
24. DUAL ENERGY SUBTRACTION RADIOLOGY.

Dual Source CT-Radiology News

Siemens Medical Solutions unveiled the world's first dual source computed tomography (CT) system, a breakthrough that will redefine the role of CT. Siemens has pushed the technical and clinical boundaries of CT with this latest innovation, the Somatom Definition, which is faster than every beating heart and capable of imaging full cardiac detail with as much as 50 percent less radiation exposure compared to traditional CT scans.
The Somatom Definition is faster than any existing CT technology. This dual source CT system uses two X-ray sources and two detectors at the same time, compared to all other CT systems that use only one source and detector. It will provide clearer, more detailed images, lead to a wider ranger of clinical applications, and ultimately produce a higher quality of patient care.
Full article at-

Sunday, November 20, 2005

Blunt Abdominal Trauma


Screening US and CT for blunt abdominal trauma: A retrospective study
Giuseppetti Gian Marco , Salera Diego, Argalia Giulio and Salvolini Luca
Its satisfactory accuracy for major trauma suggests that US could be employed not only to screen cases for emergency laparotomy but also as an alternative to CT. However, since major traumatic injuries generally carry an imperative indication for CT, especially as regards neurological, thoracic and skeletal evaluation, US should be employed to perform a prompt preliminary examination using a simplified technique in the emergency room simultaneously with resuscitation.
Keywords: Emergency screening US; Blunt abdominal trauma; Emergency radiology

Full Article at-
European Journal of Radiology, Volume 56, Issue 1 , October 2005, Pages 97-101

Web versus Peer-Review

ROLE OF PEER REVIEWED JOURNALS IN TODAYS WORLD OF INTERNET
AN EXCELLENT ARTICLE BY JUD GURNEY ON RADIOLOGY INDICATIONS
"The role of peer-reviewed journals will slowly change as they adapt to Internet technologies. Traditional peer-reviewed journals do not have the structure or organization to be timely and their traditional role as a guardian of information is strained in the rush to publish. On the other hand, the web has shown the capability as a information resource that can rapidly disseminate information or provide a comprehensive resource for physicians".
READ THE FULL ARTICLE HERE-

Friday, November 18, 2005

Normal appendix on CT


CT appearance of the normal appendix in adults
Stefania Tamburrini, Arturo Brunetti, Michèle Brown, Claude B. Sirlin and Giovanna Casola

The appendix was visualized in 305/372 patients. Its location relative to the cecum was highly variable. The diameter range was 3–10 mm; in 42% of cases the diameter was greater than 6 mm. When the intraluminal content (185/305) was visualized, the diameter was slightly superior to the mean (p=0.0156). In 329 CT scans in which oral contrast material was given, the appendix was filled by contrast material in 74/329 patients. The appendix wall thickness was measurable in 22/305 patients (average 0.15 cm).
There is significant overlap between the normal and abnormal CT appearance of the appendix. Consequently the diagnosis of acute appendicitis should be based not only on the appearance of the appendix but also on the presence of secondary signs.

Keywords Computed tomography - Appendix - Appendicitis
Full Article at-

PUBMED now allows search results on your desktop with RSS feed

News flash: deliver PubMed search results directly to your desktop with an RSS feed.


To set up an RSS feed:
(1) Run your search in PubMed.
(2) Select RSS Feed from the Send to menu.
(3) Click Create Feed and copy the XML icon into your RSS Reader.

For more details check out
PUBMED search with an RSS feed
OR
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi

Tuesday, November 15, 2005

AIIMS NOVEMBER 2005 FULLY SOLVED FOR MD/MS ENTRANCE EXAMINATIONS


AIIMS NOVEMBER 2005 (PEEPEE PUBLISHERS) FINALLY FULLY SOLVED WITH DETAILED REFERENCES IS AVAILABLE IN THE MARKETS BY DR SUMER KUMAR SETHI AND DR SIDHARTH KUMAR SETHI (AUTHORS OF ALREADY BEST SELLING BOOKS FOR PG ASPIRANTS LIKE-REVIEW OF RADIOLOGY, AIIMS MAY 2004, NOVEMBER 2004, ALL INDIA 200, AIIMS MAY 2005). IN KEEPING WITH THE TRADITION OF HELPING STUDENTS THIS IS YET AGAIN THE FIRST BOOK AVAILABLE IN THE MARKET. BEST OF LUCK AND ENJOY READING.
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91st RSNA scientific assembly and meeting

Attention radiologists and technicians: It's time to break out your wind breakers. The Radiological Society of North America (RSNA) will celebrate its 91st scientific assembly and meeting in Chicago's McCormick Place Convention Center from Nov. 27-Dec. 2 – and you don't want to miss it .


For more click here-
RSNA PREVIEW

Monday, November 14, 2005

Rare adult case of SSPE

Adult-onset subacute sclerosing panencephalitis: clinicopathological findings
Gonzalez de la Aleja J, Posada IJ, Sepulveda-Sanchez JM, Galan L, Conde-Gallego E, Ricoy-Campo JR
Servicio de Neurologia, Hospital Universitario 12 de Octubre, 28045 Madrid, Espana. jesus_goal@yahoo.es
INTRODUCTION: Subacute sclerosing panencephalitis is a disease affecting the central nervous system that is produced by persistent infection by a defective measles virus. This disease is very infrequent and its incidence has gone down even further in western countries since the introduction of generalised measles vaccinations. Onset of the disease is usually during infancy or adolescence. Reports of cases beginning during adulthood are scarce.
CASE REPORT: We describe the case of a 30-year-old female with a slowly progressive subacute clinical picture consisting in behavioural disorders, with defrontalisation, cortico-subcortical cognitive impairment, long tract signs and visual disorders, which led the patient into a vegetative state. Four years after the onset of symptoms the patient died. The different electroencephalogram recordings performed did not show any periodic activity and magnetic resonance imaging of the head revealed cerebral atrophy with hyperintense lesions in T2 sequences in white matter. The histological study of the brain showed a chronic inflammatory infiltration with neuronal loss and demyelination, as well as intranuclear inclusions and neurofibrillary degeneration. CONCLUSIONS: The appearance of subacute sclerosing panencephalitis in adulthood is exceptional. Diagnosis requires a high degree of clinical suspicion, above all in the absence of typical symptoms, such as myoclonias or periodic complexes in EEG recordings.
Full Article in-

Saturday, November 12, 2005

Radiology News-NANO FOR BRAIN CANCER IMAGING


VIRGINIA TEAM TO PUBLISH ON USING NANO FOR BRAIN CANCER IMAGING, TREATMENT
By A.J. Hostetler Richmond Times - Dispatch
Full article in-Small times

Virginia researchers are loading tiny, hollow carbon balls with metals and medicine they say could improve the ability to detect and destroy brain-cancer cells. Brain cancers are rare but often deadly. Cancerous cells often stray from the main tumor, making them difficult to find. They're troublesome to treat, in part because many medicines can't get from the bloodstream into the brain, and tricky to remove.

Stray tumor cells can be difficult to image with current techniques such as MRIs, X-rays or CT scans. They are the same cells that are most likely to lead to another bout of brain cancer, Broaddus said. Finding new ways to make cancer cells stand out against the brain's normal tissue when imaged could help improve the precision when the tumor is removed surgically and improve a patient's chance of surviving, he said.


So far, Fatouros and Broaddus have experimented with infusing rats' brains with buckyballs filled with the metal gadolinium. Broaddus said the addition of gadolinium makes it a "super-duper" contrast agent for magnetic resonance imaging. Loading the buckyballs for better MRIs is just the first step. Next, the team plans to light up the buckyball like a Christmas tree by stuffing it with the fluorescing metal terbium. Terbium could someday guide surgeons like Broaddus as they surgically remove tumors and try to ensure they get rid of those stray cells.
Full aricle at-

Thursday, November 10, 2005

Exercise before tendon imaging

Is vascularity more evident after exercise? Implications for tendon imaging.
Cook JL, Kiss ZS, Ptasznik R, Malliaras P
Musculoskeletal Research Centre, La Trobe University, Melbourne, Victoria 3086, Australia.

OBJECTIVE: The objective of our study was to investigate the effect of activity on tendon vascularity in 17 abnormal patellar tendons.

CONCLUSION: Tendon vascularity is significantly increased by activity. From this finding, we infer that imaging abnormal tendons with color Doppler sonography to detect neovascularization may be most useful after the patient exercises. Investigations to determine how much activity is necessary to ensure maximal vascularity is detected by Doppler sonography are required.


Full Article at-
AJR Am J Roentgenol. 2005 Nov;185(5):1138-40.

Wednesday, November 09, 2005

Placenta accreta

Antenatal diagnosis of placenta accreta: a review.
Comstock CH
Division of Fetal Imaging, Department of Obstetrics and Gynecology, William Beaumont Hospital, Royal Oak, MI 48073, USA. ccomstock@beaumont.edu
The incidence of placenta accreta should rise steadily over the next century as the frequency of Cesarean sections and advanced maternal age, both independent risk factors, increases. Patients who are at risk should be identified before an ultrasound examination and the characteristic findings searched for. In the first trimester, these include a low-lying sac that appears to be attached to the anterior wall of the uterus. As early as 16 weeks irregular vascular sinuses appear, which have turbulent flow within. The bladder wall may appear interrupted or have small bulges of the placenta into the bladder space. Absence of the normal echolucent space between the placenta and myometrium is not a reliable sign by itself, since this space may be absent in normal patients with an anterior placenta. Color Doppler will show that some of the placental sinuses traverse the uterine wall. Magnetic resonance imaging has not yet been shown to aid in the diagnosis, but in the future, with improvement of resolution and shortened sequences, it should be particularly useful in identifying the patients that have placenta percreta.
Full Article-

Friday, November 04, 2005

A new link for learning Cross Sectional Anatomy

I came across this link for learning Cross-sectional anatomy. Check out.

Excellent Link-
Cross Sectional Imaging

BIliary Ascariasis on ultrasound

A small Radiological quiz on Biliary ascariasis (Full Text available) Featured in Indian Journal of Radiology and Imaging's Current issue by Dr Sumer K Sethi.
Radiological Quiz – SK Sethi, RS Solanki
Ind J Radiol Imag 2005 15:1:139-140
Link to the complete article-

Thursday, November 03, 2005

Film Digitization

Influence of film digitization on radiological interpretation.
Pudas T, Korsoff L, Kallio T, Uhari M, Alanen A.
Turku University Central Hospital, PL52, 20521 Turku, Finland.
Objective was to evaluate the influence of changing from analogue to digital imaging on interobserver and intraobserver image interpretation. Three radiologists interpreted 96 three image series of occipitomental radiographs of paranasal sinuses from the films and from the corresponding digitized images from the screen. Images were classified according to degree of abnormality as either normal, with mucosal thickening of less than 5 mm, with mucosal thickening of 5 mm or more, total opacity, air-fluid level or polyp or cyst of maxillary sinuses. In the present study it was found that there were more differences between two radiologist's interpretations with a single method than in a single radiologist's interpretations between the methods, although radiologists interpreted fewer pathological findings from the digitized images than from the corresponding films. This data show that the results of image interpretation are preferentially dependent on the reader rather than on the method of reading.
Full article at-

Skeletal Radiology Teaching File Series


A 35 year old male with pain in the knee. Xray shows an eccentrically placed, subarticular,expansile lytic lesion in the upper end of tibia. Histopathological diagnosis- Giant Cell Tumour
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Wednesday, November 02, 2005

Fetal swallowing on antenatal USG

Assessment of fetal swallowing with gray-scale and color Doppler sonography.
Grassi R, Farina R, Floriani I, Amodio F, Romano S.
Institute of Radiology, Second University of Naples, Naples, Italy.
The study was focused on the evaluation of fluid dynamics to assess the value of gray-scale and color Doppler sonography for evaluating the development of fetal swallow-related movements from early gestation until birth.
Mandibular and/or labial movements and their rhythmic activity were seen on gray-scale sonography in an increasing percentage of fetuses as gestational age increased. Doppler findings showed an increase for nose-mouth flow signals, larynx-esophagus flow signals , and effective swallowing as gestational age increased,
There is a trend in the fetus toward development of increased coordinated movement and more functional nose-mouth flow with increasing gestational age: 32.1% of the 56 fetuses in our series achieved effective swallowing at 37-39 weeks, on the basis of gray-scale and Doppler evaluations. Knowledge of the physiologic mechanism involving swallowing development may allow identification of altered swallow-related movements in fetuses with malformations of the digestive tract or with neurologic disorders.
Full Article at-

Tuesday, November 01, 2005

Happy Diwali From India's Top Radiology Magazine

Diwālī or Dīpāvali (also transliterated Deepavali; Sanskrit: row of lights) is the Hindu Festival of Lights. For Jains it is one of the most important festivals, and beginning of the Jain year. It is also a significant festival for the Sikh faith.
Diwali is one of the most popular and eagerly awaited festivals of India. It is celebrated for 5 consecutive days in Hindu month of Ashwayuja which usually correspond to the months of October or November. Hindus, Jains and Sikhs celebrate Diwali and use the occasion to celebrate life and strengthen relationships.
Typically, celebrations focus on lights and lamps, particularly traditional divas (Lamps), although electric lights have become widespread. Fireworks may also be associated with the festival in some regions.
Sumer's Radiology Site wishes all readers a very happy and sparkling Diwali...

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