PMID- 34892810
OWN - NLM
STAT- MEDLINE
DCOM- 20220110
LR  - 20220110
IS  - 2694-0604 (Electronic)
IS  - 2375-7477 (Linking)
VI  - 2021
DP  - 2021 Nov
TI  - MR Conditionality of Abandoned Leads from Active Implantable Medical Devices at 
      1.5T.
PG  - 7412-7415
LID - 10.1109/EMBC46164.2021.9630892 [doi]
AB  - During Magnetic Resonance (MR) scans, abandoned leads from active implantable 
      medical devices (AIMDs) can experience excessive heating near the lead-tip, 
      depending on the types of termination applied to the proximal end. The influence 
      of different proximal treatments, i.e., (i) freely exposed in the tissue, (ii) 
      capped with metallic material, and (iii) capped with plastic material on the 
      RF-induced heating are studied. Abandoned leads from a sacral neuromodulation 
      (SNM) system were investigated in this study. The device models, i.e., the 
      transfer functions, for different proximal treatments were developed. These 
      models are then used to assess the in-vivo lead-tip heating inside four virtual 
      human models (FATS, Duke, Ella, and Billie). The RF-induced heating from these 
      abandoned leads with different proximal end treatments are compared with the 
      lead-tip heating of the original AIMD system. The maximum lead-tip heating for 
      abandoned leads using metal cap at the proximal end is lower than that from the 
      original intact AIMD system. Abandoned leads with plastic cap treatment at the 
      proximal end will lead to an average in-vivo temperature that is 3.5 times higher 
      than that from the original intact AIMD system. Therefore, from this study and in 
      terms of the RF-induced heating, the abandoned leads with metallic cap treatment 
      at the proximal end can maintain the MR conditionality of the original AIMD 
      system.Clinical Relevance- The different treatments of proximal end of the 
      abandoned leads from AIMD are studied to ensure that MR Conditional AIMD leads 
      remain MR Conditional when the leads are abandoned in the patients.
FAU - Wang, Yu
AU  - Wang Y
FAU - Guo, Ran
AU  - Guo R
FAU - Hu, Wei
AU  - Hu W
FAU - Jiang, Jay
AU  - Jiang J
FAU - Kainz, Wolfgang
AU  - Kainz W
FAU - Chen, Ji
AU  - Chen J
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Annu Int Conf IEEE Eng Med Biol Soc
JT  - Annual International Conference of the IEEE Engineering in Medicine and Biology 
      Society. IEEE Engineering in Medicine and Biology Society. Annual International 
      Conference
JID - 101763872
RN  - 0 (Metals)
SB  - IM
MH  - Heating
MH  - Humans
MH  - *Magnetic Resonance Imaging
MH  - Magnetic Resonance Spectroscopy
MH  - Metals
MH  - *Prostheses and Implants
EDAT- 2021/12/12 06:00
MHDA- 2022/01/11 06:00
CRDT- 2021/12/11 01:06
PHST- 2021/12/11 01:06 [entrez]
PHST- 2021/12/12 06:00 [pubmed]
PHST- 2022/01/11 06:00 [medline]
AID - 10.1109/EMBC46164.2021.9630892 [doi]
PST - ppublish
SO  - Annu Int Conf IEEE Eng Med Biol Soc. 2021 Nov;2021:7412-7415. doi: 
      10.1109/EMBC46164.2021.9630892.