Exploring the best monochromatic energy level in dual energy spectral imaging for coronary stents after percutaneous coronary intervention

AbstractIn this study, the optimal monochromatic energy level in dual-energy spectral CT required for imaging coronary stents after percutaneous coronary intervention (PCI) was explored. Thirty-five consecutive patients after PCI were examined using the dual-energy spectral CT imaging mode. The original images were reconstructed at 40–140 keV (10-keV interval) monochromatic levels. The in-stent and out-stent CT values at each monochromatic level were measured to calculate the signal-to-noise ratio(SNR) and contrast-to-noise ratio (CNR) for the vessel and the CT value difference between the in-stent and out-stent lumen (dCT (in–out)), which reflects the artificial CT number increase due to the beam hardening effect caused by the stents. The subjective image quality of the stent and in-stent vessel was evaluated by two radiologists using a 5-point scale. With the increase in energy level, the CT value, SNR, CNR, and dCT (in–out) all decreased. At 80 keV, the mean CT value in-stent reached (345.24 ± 93.43) HU and dCT (in–out) started plateauing. In addition, the subjective image quality of the stents and vessels peaked at 80 keV. The 80 keV monochromatic images are optimal for imaging cardiac patients with stents after PCI, balancing the enhancement and SNR and CNR in the vessels while minimizing the beam hardening artifacts caused by the stents.

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Kualitas Hidup Pasien Pascaintervensi Koroner Perkutan

Jurnal Keperawatan Padjadjaran ◽

10.24198/jkp.v2i1.77 ◽

1970 ◽

Vol 2 (1) ◽

Author(s):

Remita Ully Hutagalung ◽

F Sri Susilaningsih ◽

Ai Mardiyah

Keyword(s):

Quality Of Life ◽

Percutaneous Coronary Intervention ◽

Heart Disease ◽

College Education ◽

Coronary Intervention ◽

Health Condition ◽

Cross Sectional ◽

Percutaneous Coronary ◽

Environment Domain

Penyakit jantung koroner adalah penyakit yang dapat mengancam kehidupan seseorang. Pelaksanaan tindakan non bedah intervensi koroner perkutan pasien masih memiliki risiko terjadinya serangan berulang, stenosis dan ancaman kematian. Tujuan penelitian ini adalah mengidentifikasi kualitas hidup pasien pascatindakan intervensi koroner perkutan. Desain penelitian ini adalah potong lintang. Pengambilan sampel secara consecutive samplingdidapatkan 50 responden yaitu pasien yang sedang kontrol pascaintervensi coroner per kutan di Poliklinik Spesialis Jantung RSUP Dr. Hasan Sadikin Bandung, penelitian ini dilakukan pada 1-14 November 2013. Kualitas hidup diukur dengan instrumen WHOQOL-BREFdengan empat domain kualitas hidup yaitu domain fisik, psikologis, sosial, dan lingkungan. Analisis menggunakan statistik deskripsi. Hasil penelitian menunjukkan bahwa responden memiliki kualitas hidup baik sebesar 50%. Perawat memiliki peran dalam membantu pasien mencapai kualitas hidup yang optimal, diantaranya melalui peningkatan efikasi diri pasien melalui pendampingan dan pemberian informasi dalam usaha mencapai kualitas hidup.Kata kunci:Intervensi koroner perkutan, kualitas hidup, WHOQOL-BREF AbstractCoronary heart disease is a disease that can threaten person’s life, and can lead to the change of the quality of life. This coronary heart disease can be solved with non-surgical called percutaneous coronary intervention. This action will be normalized the quality of perfusion in the coronary arteries, which would certainly have an impact on the quality of life of patients. The research objective was to observe the patient of quality of life after treatment on intervention percutaneous coronary. The research design was cross sectional. There were 50 respondents taken by consecutive sampling. Data were collected in outpatient room in RSUP Dr. Hasan Sadikin Bandung, who have came with treatment routine schedule after percutaneous coronary intervention during November 1st–14th 2013. The questionnaire use WHOQOL-BREF format with 26 questions that consisting of 4 domains of quality of life: physical domain, psychological domain, social domain, and environment domain. Majority of patients were male (74 %), with the range of age mostly 56-66 years ( 34 % ), married ( 96 % ), college education was the highest ( 66 % ), the majority had not a primary job like as housewife , retired, student, etc. ( 26 % ). Data were collected using the questionnaire WHOQOL – BREF. The result have shown that rates of quality of life was good ( 50 % ) and health condition after percutaneous coronary intervention neither satisfied nor dissatisfied ( 44 % ). Nurses have a role in helping patients achieve optimal quality of life like giving information to patient correctlyKey words: Percutaneous coronary intervention, quality of life, WHOQOL – BREF

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