1. Usefullness of flow composite image in Raynaud scan(201Tl)
Department of Nuclear Medicine,
East-West Neo Medical Center , Kyung-Hee University
Dae Yeon Kim, Gyoo Seol Shin, Eun Jeong Oh, Kun Jae Kim

2. Raynaud syndrome Report : Maurice Raynaud of France, 1862
Rates : 10 % of population
: Female > Male [9 times]

3. Raynaud syndrome Primary Raynaud’s phenomenon (Raynaud’s disease)
- cannot look up the cause
- bilateral
- about 15~30 min
Secondary Raynaud’s phenomenon
Raynaud’s phenomenon
Raynaud’s disease
95% 5%
- affected by diseases
- may be unilateral
- fast progress and more severe

4. Triphasic color change
Raynaud phenomenon
Triphasic color change
Triphasic color changes
Precipitate by cold emotional stress
Triphasic color change : pallor  cyanosis  rubber
Pallor
Cyanosis
Rubber

5. Diagnosis of raynaud phenomenon
Angiography
Raynaud scan Tl
Biochemistry test
Nailfold capillaroscopy (NFC)
Power doppler ultrasonography (PDU)
Antinuclear antibody test
Rheumatoid arthritis factor blood test
Diagnosis of raynaud phenomenon

6. Target and Term Target Term 29 patients (male : 8, female : 21)
Raynaud’s syndrome Hx.
Feb ~ Aug. 2009
29 patients (male : 8, female : 21)
EWNMC vascular surgery
Target
Term

7. LEHR (Low energy high resolution)
Acquisition
Machine
Zoom factor
Collimator
Philips Gamma Camera Forte A - Z
Philips PEGASYS processing system
LEHR (Low energy high resolution)
1.00 x (Full Field)

8. Acquisition Matrix size 64 x 64 Flow Blood pool Delay 155 f / 2 sec

9. Method
Flow
Blood pool
Delay

10. Method
Flow
Composite
Blood pool
Delay

11. Method
Comparison with composite image and delay image in raynaud scan
Flow
Blood pool
Delay
Blood pool
Delay
Flow
flow  composite +
Composite
Blood pool
Delay

12. Lt hand count/ Rt hand count Rate
Result
Lt hand count/ Rt hand count Rate
rate 3 2 1
patient
composite count rate
Blood pool count rate
Delay count rate

13. Result Comparison Section Group 1 Group 2 Group 3 Part Composite
Blood pool
Delay
Count ratio
(Rt. / Lt.) mean
1.25 ± 0.39
1.20 ± 0.33
1.11 ± 0.17
Comparison
Group 2 & p = p < 0.05
Group 1 & p = p < 0.05
Group 1 & p = p < 0.05

14. Conclusion Flow Blood pool Delay Visual Comparison Classification
Composite
Useful Diagnosis

15. Question And Answer
Q&A