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MPR and 3D the most efficient way to read MDCT - Barco

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The problem<br />

Too many images<br />

The development of 8 <strong>and</strong> 16-detec<strong>to</strong>r CT scanners has<br />

enhanced <strong>the</strong> quality of CT imaging by improving resolution<br />

spatially <strong>and</strong> temporally. However, this improvement<br />

comes at a price; <strong>the</strong> radiologist is now faced with <strong>the</strong><br />

daunting task of reviewing thous<strong>and</strong>s of images ra<strong>the</strong>r<br />

than hundreds.<br />

Film <strong>read</strong>ing now impossible<br />

Interpretation of <strong>MDCT</strong> studies presents new challenges for<br />

<strong>the</strong> radiologist. Reading film has become cost prohibitive.<br />

Even printing 36 images on one piece of film can generate<br />

50 sheets of film. Some radiology departments have considered<br />

printing every 4th image or ‘summing’ multiple<br />

images <strong>to</strong>ge<strong>the</strong>r <strong>to</strong> reduce <strong>the</strong> film burden. In addition <strong>to</strong><br />

<strong>the</strong> cost of printing film, <strong>the</strong> time required <strong>to</strong> interpret a<br />

large number of films has become a major burden for <strong>the</strong><br />

radiologist.<br />

X<br />

The solution<br />

Voxar <strong>3D</strong> enabled PACS<br />

<strong>MPR</strong> <strong>and</strong> <strong>3D</strong><br />

<strong>the</strong> <strong>most</strong> <strong>efficient</strong> <strong>way</strong> <strong>to</strong> <strong>read</strong> <strong>MDCT</strong><br />

The development of combined 2D <strong>and</strong> <strong>3D</strong> wo r kst ations<br />

permits <strong>the</strong> ra d i o l o g i st <strong>to</strong> inte r ro g ate <strong>the</strong> data in st a c k<br />

mode with real time cine. The addition of <strong>MPR</strong> allows <strong>the</strong><br />

radiologist <strong>to</strong> view <strong>the</strong> ana<strong>to</strong>my in any plane in real-time.<br />

T h ese images can be created live on <strong>the</strong> wo r kst at i o n<br />

without any need for te c h n o l o g i st pre- p ro cessing on <strong>the</strong><br />

CT console. Failing <strong>to</strong> view <strong>the</strong> dat a s ets created by <strong>MDCT</strong><br />

Conventional 2D PACS <strong>read</strong>ing is only a partial solution<br />

Although PACS viewing is a substantial improvement ove r<br />

film, it is an inco m p l ete solution. Cine rev i ew of <strong>the</strong> original<br />

axial slices presents only a fraction of <strong>the</strong> available info r m ation.<br />

Most pathology does not lie within <strong>the</strong> tra n sve r s e<br />

p l a n e. The increased spatial resolution of <strong>MDCT</strong> aids <strong>the</strong> production<br />

of high quality multiplanar re co n structions (<strong>MPR</strong>) in<br />

a ny plane. For <strong>the</strong> first time, CT has surpassed MRI as a truly<br />

multiplanar imaging technique; howeve r, only if <strong>the</strong> PAC S<br />

sy stem is capable of producing on-t h e-fly <strong>MPR</strong>.<br />

Difficult <strong>to</strong> communicate findings<br />

Radiologists typically employ two methods <strong>to</strong> communicate<br />

findings: a typed text-based report, or a summary<br />

series of images attempting <strong>to</strong> represent key pathology.<br />

Text-based reports do not adequately convey <strong>the</strong> complex<br />

ana<strong>to</strong>mical relationships of pathology. On <strong>MDCT</strong> scans,<br />

summary series may require duplication of dozens, if not<br />

hundreds, of images.<br />

in <strong>MPR</strong> mode eliminates <strong>the</strong> major a d vantage of <strong>MDCT</strong><br />

over single-s l i ce scanners: increased z-axis resolution <strong>and</strong><br />

i m p roved re co n st r u c t i o n s. Important findings which need<br />

<strong>to</strong> be communicated <strong>to</strong> <strong>the</strong> referring physician can now<br />

be re p res e n ted with a few <strong>3D</strong> or <strong>MPR</strong> i m a g es. Unlike<br />

routine 2D images, <strong>MPR</strong> <strong>and</strong> <strong>3D</strong> images are ea s i l y<br />

i n te r p reted by <strong>the</strong> referring physician <strong>and</strong> radiologist alike.


The problem<br />

• <strong>MDCT</strong> pro d u ces <strong>to</strong>o many images<br />

- Film <strong>read</strong>ing now imposs i b l e<br />

- Increased spatial resolution re q u i res <strong>MPR</strong> rev i ew<br />

• Sagittal <strong>and</strong> coronal <strong>MPR</strong> produced on a scanner<br />

console<br />

- Te c h n o l o g i sts time re d u ces scanner thro u g h p u t<br />

- <strong>MPR</strong>s fur<strong>the</strong>r increase image number<br />

- <strong>MPR</strong>s in <strong>the</strong> wrong plane re q u i re re p eat s<br />

• Co nve ntional 2D PACS is only a partial solution<br />

- Only presents axial images or console pro d u ced <strong>MPR</strong><br />

- Radiologist is unable <strong>to</strong> generate views in real-time<br />

- D i f f i cult <strong>to</strong> cro ss- refe re n ce spatial location bet ween<br />

<strong>MPR</strong> series<br />

• D i ff i cult <strong>to</strong> co m m u n i c ate findings<br />

- Demonst rating pathology may re q u i re production<br />

of large summary series or a montage view<br />

- Axial images not easily unders<strong>to</strong>od by surgeons <strong>and</strong><br />

o<strong>the</strong>r referring phy s i c i a n s<br />

- Text report <strong>and</strong> a few axial images cannot co nvey<br />

co m p l ex ana<strong>to</strong>mical re l ationships<br />

VOXAR is a registered trademark, <strong>and</strong> VOXAR <strong>3D</strong> is a trademark of <strong>Barco</strong> in Europe <strong>and</strong> o<strong>the</strong>r countries.<br />

K5906132 rev.00.02 © 2006 <strong>Barco</strong> 1106<br />

www.barcomedical.com<br />

Outside radiology<br />

Emergency room:<br />

PACS clinical<br />

review workstation<br />

Cancer board<br />

meeting room<br />

Operating room:<br />

PACS clinical review<br />

workstation<br />

Referring<br />

physicians room<br />

Remote locations<br />

Referring<br />

physicians home<br />

Radiologists home<br />

Local hospital<br />

network<br />

DSL<br />

cable<br />

The solution<br />

• VOX A R 3 D enabled PACS<br />

- Combined 2D <strong>and</strong> <strong>3D</strong> functionality<br />

- Technologists pre-processing available off <strong>the</strong><br />

scanner co n s o l e<br />

- Radiologist retains <strong>the</strong> ability <strong>to</strong> change<br />

te c h n o l o g i sts pre- p ro cessing using LI V E IM AG E S<br />

- Rea l -time cine in any plane<br />

( axial, sagittal, co ronal, oblique, cu r ve d )<br />

- On-t h e-fly <strong>MPR</strong> <strong>and</strong> <strong>3D</strong> image generat i o n<br />

- <strong>MPR</strong> <strong>and</strong> <strong>3D</strong> re d u ce <strong>the</strong> number of images<br />

n e cessary <strong>to</strong> co nvey findings <strong>to</strong> referring phy s i c i a n s<br />

Technologists post-processing<br />

workstation<br />

Radiologists<br />

office<br />

Radiology<br />

PACS archive<br />

M D C T, MRI<br />

<strong>and</strong> PET<br />

Reading room:<br />

PACS diagnostic<br />

workstation<br />

Ba rco (Belgium)<br />

P res. Kennedypark 35<br />

B-8500 Ko r t r i j k, Belgium<br />

Phone: +32 56 233 557<br />

Fax: +32 56 233 374<br />

E-mail: sa l es. m e d i c a l . e u @ b a rco. co m<br />

Ba rco V i ew, LLC (USA )<br />

3059 Pre m i e re Pa r k <strong>way</strong> - Duluth<br />

G e o rgia, 30097- 4 9 0 5, U SA<br />

Phone: +1 678 475 8000<br />

Fax: +1 678 475 8237<br />

E-mail: sa l es. m e d i c a l . u s @ b a rco. co m<br />

Ba rco LT D. ( Ta i wa n )<br />

17th fl o o r, Ku o hwa Building<br />

8 6 8-6, Chungcheng Ro a d ,<br />

C h u n g h o C i t y, Taipei Co u nt y, 235, Ta i wa n<br />

Phone: +886 2 8221 6868<br />

Fax: +886 2 8221 6969<br />

For your local co ntact<br />

visit www. b a rco m e d i c a l . co m

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