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De qi, a threshold of the stimulus intensity, elicits the specific response of acupoints and intrinsic change of human brain to acupuncture.

Tian DS, Xiong J, Pan Q, Liu F, Wang L, Xu SB, Huang GY, Wang W - Evid Based Complement Alternat Med (2014)

Bottom Line: Results.Furthermore, acupuncture treatment induced fMRI signal increase/decrease in different brain regions although no significant change in electroencephalography.Interpretation.

View Article: PubMed Central - PubMed

Affiliation: Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.

ABSTRACT
Objectives.  De qi is the subjective constellation of sensations perceived by the acupuncturists and patients as described in several literatures, but the absence of quantitative evaluation methods in de qi restricts the use of acupuncture treatment widely in the world. In the present study, we tried to investigate the intrinsic property of de qi is and how evaluate it quantitatively. Methods. 30 healthy adult volunteers were determined to investigate intrinsic changes in the human body after acupuncture with de qi. Results. Acupuncture treatment with de qi apparently increased acupoint blood flow, tissue displacement, and the amplitude of myoelectricity after de qi on acupoints. Furthermore, acupuncture treatment induced fMRI signal increase/decrease in different brain regions although no significant change in electroencephalography. Interpretation. The intrinsic change of the subjects representing the specific response of acupoints and human brain to acupuncture indicated that de qi might be evaluated quantitatively by those above aspects, which facilitated the confirmation in validity and propagation of this treatment modality widely in the world.

No MeSH data available.


Related in: MedlinePlus

Tissue displacement on acupoints following needle stimulation before and after de qi. In vivo ultrasonic imaging using a System FiVe (Vingmed) at 7.5 MHz was performed on the healthy subjects at different stages of acupuncture needle stimulation including before de qi and during de qi. Displacements were estimated using the ultrasonic radio-frequency (RF) data. Seventy RF scans were acquired continuously during each experiment at the rate of 13.2 frames per second.
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fig3: Tissue displacement on acupoints following needle stimulation before and after de qi. In vivo ultrasonic imaging using a System FiVe (Vingmed) at 7.5 MHz was performed on the healthy subjects at different stages of acupuncture needle stimulation including before de qi and during de qi. Displacements were estimated using the ultrasonic radio-frequency (RF) data. Seventy RF scans were acquired continuously during each experiment at the rate of 13.2 frames per second.

Mentions: It was found that soft-tissue displacement could be estimated using only the stimulus caused by the movement of the needle. In the present study, the amount of tissue displacements, induced by acupuncture treatment, was measured by in vivo ultrasonic imaging before de qi and during de qi stage. As shown in Figure 3, the distance of tissue displacements in Zusanli was found to increase in amplitude by up to 0.167 ± 0.047 mm during de qi stage (Figure 3(b)), compared with 0.105 ± 0.027 mm, the distance before de qi (Figure 3(a), P < 0.01).


De qi, a threshold of the stimulus intensity, elicits the specific response of acupoints and intrinsic change of human brain to acupuncture.

Tian DS, Xiong J, Pan Q, Liu F, Wang L, Xu SB, Huang GY, Wang W - Evid Based Complement Alternat Med (2014)

Tissue displacement on acupoints following needle stimulation before and after de qi. In vivo ultrasonic imaging using a System FiVe (Vingmed) at 7.5 MHz was performed on the healthy subjects at different stages of acupuncture needle stimulation including before de qi and during de qi. Displacements were estimated using the ultrasonic radio-frequency (RF) data. Seventy RF scans were acquired continuously during each experiment at the rate of 13.2 frames per second.
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4151069&req=5

fig3: Tissue displacement on acupoints following needle stimulation before and after de qi. In vivo ultrasonic imaging using a System FiVe (Vingmed) at 7.5 MHz was performed on the healthy subjects at different stages of acupuncture needle stimulation including before de qi and during de qi. Displacements were estimated using the ultrasonic radio-frequency (RF) data. Seventy RF scans were acquired continuously during each experiment at the rate of 13.2 frames per second.
Mentions: It was found that soft-tissue displacement could be estimated using only the stimulus caused by the movement of the needle. In the present study, the amount of tissue displacements, induced by acupuncture treatment, was measured by in vivo ultrasonic imaging before de qi and during de qi stage. As shown in Figure 3, the distance of tissue displacements in Zusanli was found to increase in amplitude by up to 0.167 ± 0.047 mm during de qi stage (Figure 3(b)), compared with 0.105 ± 0.027 mm, the distance before de qi (Figure 3(a), P < 0.01).

Bottom Line: Results.Furthermore, acupuncture treatment induced fMRI signal increase/decrease in different brain regions although no significant change in electroencephalography.Interpretation.

View Article: PubMed Central - PubMed

Affiliation: Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.

ABSTRACT
Objectives.  De qi is the subjective constellation of sensations perceived by the acupuncturists and patients as described in several literatures, but the absence of quantitative evaluation methods in de qi restricts the use of acupuncture treatment widely in the world. In the present study, we tried to investigate the intrinsic property of de qi is and how evaluate it quantitatively. Methods. 30 healthy adult volunteers were determined to investigate intrinsic changes in the human body after acupuncture with de qi. Results. Acupuncture treatment with de qi apparently increased acupoint blood flow, tissue displacement, and the amplitude of myoelectricity after de qi on acupoints. Furthermore, acupuncture treatment induced fMRI signal increase/decrease in different brain regions although no significant change in electroencephalography. Interpretation. The intrinsic change of the subjects representing the specific response of acupoints and human brain to acupuncture indicated that de qi might be evaluated quantitatively by those above aspects, which facilitated the confirmation in validity and propagation of this treatment modality widely in the world.

No MeSH data available.


Related in: MedlinePlus