Coronary Calcium Scoring

Moderate (101-400)
43-year-old male

This 43-year-old male’s scan shows moderate coronary calcification involving the proximal and mid LAD and
proximal diagonal (total CAC = 214).

Mild (11-100)
57-year-old male

This 57-year-old man’s scan shows mild focal calcifications (total CAC = 66) in the areas of the left main,
proximal LAD and diagonal coronary arteries.

 

Zero (0)
46-year-old male

Coronary Angiography (EBA)

Multi-Phase™ Native Coronaries (animation)
Movie-like data at different diastolic phases

Multi-Phase EBA scanning sequentially captures multiple 100 ms images beginning at end systole. The result provides movie-like data sets which show different diastolic phases of the coronary artery lumen. The visual effect is similar to a cine angiogram.

Shown is a 53-year-old female physician with a total calcium score of 174 and atypical chest pain.

 

CABG
Three vessel off-pump bypass surgery.

Patent saphenous vein grafts are easily visualized by EBA™ in a very high percentage of cases (>95%).

This 69-year-old male had three vessel off-pump bypass surgery one year prior.
Note the widely patent vein grafts arising from within the localizing rings attached to the ascending aorta.

 

LIMA
Mammary Arteries

Internal mammary arteries are easily visualized by Electron Beam Angiography.

In this 63-year-old male, ten years post surgery, the LIMA and RIMA grafts are seen to be widely patent. One saphenous vein graft to the left circumflex is seen to course behind the LIMA after arising from within one of the localizing rings on the ascending aorta.

 

Coronary Stent (LAD)

Coronary stent located in the Left Anterior Decending (LAD).

 

Congenital Defect
Long, severe narrowing in mid LAD

This healthy 54-year-old male physician had a total calcium score of 1407. His electon beam angiogram (EBA™) shows a long, severe narrowing of his mid LAD. He has a large diagonal branch which parallels the mid and distal LAD. The left main is congenitally absent (double orifice). Focal calcifications are seen in the LAD and left circumflex arteries, but the area of mid LAD narrowing is non-calcified.

 

Plaque Characterization
Physician sets density levels

Coronary plaque characterization techniques can be applied to an EBA data set.

Physicians can set density levels and colors to create colorful plaque characterizations. Density settings in this example approximate myocardial fat (red), lipids (green), and calcium (pink).

Cardiac Function

Wall Motion:
Help specify wall motion anomolies.

Sharp, motion-free 50 ms images of the heart throughout one entire heart cycle aid physicians in determining and specifying wall motion anomalies. If studies are performed under both rest and stress, comparison of the studies may be used as an aid in the evaluation of flow reserve.

Wall Motion Analysis:
Stroke volume, myocardial mass, and ejection fraction.

Proprietary cardiac analysis software assists physicians by performing semi-automatic mapping of the chamber contours and calculating stroke volume, myocardial mass, and ejection fraction — similar to measurements performed on coronary catheterization images.

Perfusion:
Blood flow in myocardium

Perfusion measurements aid physicians in comparing the blood flow in various parts of the myocardium to determine absolute values of perfusion, and to compare those values to accepted values in the literature from EBT™ and other modalities. Perfusion measurements under rest and stress conditions give further information on viability of the myocardium.

 

Perfusion Analysis:
Evaluate perfusion, transit time, maximum CT number change, etc.

Proprietary software assists physicians in the evaluation of perfusion, transit time, maximum CT number change, and more. Each of these calculations are performed on every pixel of image data. One presentation of the results generates a functional overlay on an anatomic EBT™ image — similar to nuclear medicine.

Peripheral Angiography

 

Aortic Stent:
Aortic aneurysm

Aortic aneurysm, post stent placement. Incidental findings of bilateral renal cysts.
One breath hold, continuous volume acquisition.

 

Renal Arteries:
Accessory left renal artery, incidental finding.

MIP showing the mid-abdominal aorta at the origin of the renal arteries. There is an accessory left renal artery, incidental finding.
3mm CVS Acquisition, one breath hold.

Low Dose Lung

 

Nodules:
Focal lesions

Two small focal lesions on the right side of the lung.
Single breath hold, 200 millisecond exposure per slice, low dose lung scan.

 

Occult Mass

Solitary, round proximal occult mass with post-obstructive pneumonitis, or secondary atelectasis.

Colonography

7mm Polyp

Lesion of the distal descending colon

Small polypoid lesion of the distal descending colon.

Chest, Abdomen, Pelvis

Abdomen

Axial image of normal abdominal anatomy using intravenous and oral contrast.

Pelvis

Pelvis with intravenous contrast revealing an enlarged globular uterus with heterogeneous internal architecture suggestive of leiomyomatous change. In addition, there is a round polycystic lesion of the right adnexa, possibly representative of a polycystic ovary.