Original Articles / ·¡ro ´ Áª«µ¦r¢g ¢¼µ¦ 2550; 17(2): 37 - 42 J Thai Rehabil Med 2007; 17(2): 37 - 42 µ¦ª´¦·¤µ{µª³oµoª¥Á¦º°É °´¨¦µµªr¡¡µ Á¦¸¥Á¸¥´ª·¸ ª{µª³Äo¼ ªi ¥¦³Á¡µ³{µª³ ¡·µ¦µ¦°¥Ã¦Å ´®¨´ ®´¥¤µ« 椡¬r, ¡.., ¨··¡¥r ¶µ°, ¡.., ª.ª.Áª«µ¦r¢g ¢¼ £µª·µÁª«µ¦r¢g ¢¼ ³Â¡¥«µ¦r ¤®µª·¥µ¨´¥ °Ân ABSTRACT Measurement of Residual Urine by Portable Ultrasound Scanner Compared with Catheterization Method in Spinal Cord Lesion Patients with Neurogenic Bladder Kothsompong H, Tamnanthong N. Department of Rehabilitation Medicine, Faculty of Medicine, Khon Kaen University Objectives: To determine the accuracy of residual urine (RU) measured by the portable ultrasound scanner compared with catheterization method. Study design: Experimental, comparative study Setting: The rehabilitation ward, Srinagarind Hospital Subjects: Thirty-three spinal cord lesion patients with neurogenic bladder managed by intermittent catheterization. Methods: Initially, post-voiding residual urine was assessed by the first ultrasound scanner measurement (US1) compared to catheterization method (Cath1) with double-blind technique. Fifty ml. of normal saline (NSS) was introduced via foley Correspondence to: Dr. Hathaimas Kothsompong; Department of Rehabilitation Medicine Maharat Nakornratchasrima Hospital, Changpheuk Road, Amphur Mueng, Nakornratchasrima 30000 E-mail: rainy152@yahoo.com catheter, then assessed by the second scanner measurement (US2 ). Thereafter, additional 50 ml. of NSS was introduced for the third scanner measurement (US 3). Finally, the bladder volume was assessed by catheterization method (Cath2) and was compared to the constant value of 100 ml. Accuracy and clinical agreement of RU measured by the ultrasound scanner and the catheterization were evaluated. Results: Thirty-three patients were included; 18 of all had traumatic spinal cord injury; 21 were males and 10 were females. Average age was 40.25 years old (range 20 to 65 years old). The Bland and Altman plot was showed clinical agreement of US1vs Cath1 (limit ± 50 ml. = 64.74%, 95% CI = 51.25 - 84.23%) and US3vs Cath2 (limit ± 50 ml. = 64.52%, 95% CI = 47.67 - 81.36%). When compared US1 with Cath1and US3 with Cath2 , the sensitivities of the ultrasound scanner were 0.8888889 and 0.5172414, respectively. There was low agreement of US2 vs 50 ml, US3 vs100 ml, and Cath2 vs 100 ml. Conclusion: The portable ultrasound scanner is useful for evaluation of RU when compared with the catheterization method. It is more accurate when the RU is more than 100 ml. Key words: residual urine, neurogenic bladder, spinal cord lesion, portable ultrasound, intermittent catheterization J Thai Rehabil Med 2007; 17(2): 37 - 42 - 37 - ´¥n° ª´»¦³r: Á¡º°É ¦³Á¤·ªµ¤Â¤n¥¶ °µ¦ª´¦·¤µ{µª³oµ (Residual urine, RU) oª¥µ¦ÄoÁ¦º°É °´¨¦µ µªrÁ¦¸¥Á¸¥´µ¦ª{µª³ ¦¼Âµ¦ª·¥´ : Äoª· ¸ ¨° «¹¬µ Á¦¸¥Á¸¥ µ¸É ¶µ¦ª· ´ ¥ : ®°o¼iª¥Áª«µ¦r¢g ¢¼ æ¡¥µµ¨«¦¸¦·¦r ¨n»¤¦³µ¦: o¼iª¥£µª³¦³Á¡µ³ {µª³¡·µ¦¸É´µ¦ ´nµ¥{µª³ Ã¥µ¦ª{µª³Á}¦³¥³ ¶ª 31 ¦µ¥ ª·¸µ¦«¹¬µ: ª´¦·¤µ{µª³oµ Ã¥o¼ ¶µ¦ª·¥´ ÄoÁ¦º°É °´¨¦µµªr¥®¸É °o Bladder scan (US1) Á¦¸¥Á¸¥´ª·¸ ª{µª³ (Cath1) ¹É ¤¸¡¥µµ¨o¼ ªn ¥ ª·¥´ Á}ª Ã¥dnµ o°¤¼¨¸ªÉ ´ ÅoŤnÄ®oo¼¶µ¦ª´´Ê°ª·¸¦µnµ °´Â¨³´ ¹É®¨´µª{µª³ ¦´Ê¦³ÄnʶÁ¨º°Á oµÅĦ³Á¡µ³ {µª³ 50 ¤¨. ª´oª¥Á¦º°É °´¨¦µµªr (US2 ) ¨oªÄnʶÁ¨º°Á oµÅ°¸ 50 ¤¨. ¨³ª´Ê¶ oª¥Á¦º°É °´¨¦µµªr (US3) µ´Ê¹ª{µª³°°¤µ°¸¦´Ê (Cath2) Á¡ºÉ ° ¶n µ ¸É ª´ Åo Å Äo Ä µ¦ ¦³Á¤· ªµ¤Â¤n ¥¶ ¨³ªµ¤° ¨o°´ °µ¦ª´¦·¤µ{µª³´Ê °ª·¸ ¨µ¦«¹¬µ: o¼iª¥ ¶ª 31 ¦µ¥ °µ¥»Á¨¸¥É 40.25 e (´Ê Ân 20-65 e), Á} µ¥ 21 ¨³®· 10 , ¦°¥Ã¦ nªÄ®nÁ}µÁÈÅ ´®¨´µ°»´ Á· ®» Áª«µ¦r¢g ¢¼µ¦ 2550; 17(2) (18 ) µ Bland and Altman plot ¡ªnµ¤¸ªµ¤°¨o°´¦³®ªnµ US1 ´ Cath1 (¸É limit ± 50 ml. = 64.74%, 95% CI = 51.25 - 84.23%) ¨³ US3 ´ Cath2 (¸É limit ± 50 ml. = 64.52%, 95% CI = 47.67 - 81.36%) Ã¥ªµ¤Åª °Á¦º°É °´¨¦µµªrĵ¦ª´¦·¤µ {µª³oµ Á¤ºÉ°Á¸¥¦³®ªnµ US1 ´ Cath 1 ¨³ US 3 ´ Cath 2 Án µ ´ 0.8888889 ¨³ 0.5172414 µ¤¨¶´ ¨³¤¸ªµ¤°¨o°´o°¥ ¦³®ªnµ US2 ´ 50 ¤¨., US3 ´100 ¤¨. ¨³ Cath2 ´ 100 ¤¨. ¦»: µ¤µ¦¶Á¦º°É °´¨¦µµªr ¡¡µ¤µÄo¦³Á¤·¦·¤µ{µª³oµ µ¦ª{µª³Åo Ã¥³¤¸ ªµ¤Â¤n¥¶Á¤º°É ¶¤µª´¦·¤µ{µª³ oµ¤µªnµ 100 ¤¨. ¶¶´: residual urine, neurogenic bladder, spinal cord lesion, portable ultrasound, intermittent catheterization Áª«µ¦r¢g ¢¼µ¦ 2550; 17(2): 37 - 42 ¶ ¦· ¤ µ{ µª³o µ ®¨´ µµ¦ ´nµ¥{µª³ (post - voiding residual urine, RU) ¤¸ªµ¤¶´Äµ¦¡·µ¦µ ¨³´·Äĵ¦´µ¦´o¼ ªi ¥£µª³ ¦³Á¡µ³{µª³¡·µ¦ (neurogenic bladder)(1) Án o¼ ªi ¥¸¤É ¦¸ °¥Ã¦Å ´®¨´ (spinal cord lesion) ¨³¤¸£µª³¦³Á¡µ³ {µª³¡·µ¦°µ³ f ´nµ¥{µª³Ã¥ µ¦ª{µª³Á}¦³¥³ (intermittent catheterization, IC) ¹É ¶ª¦´Ê °µ¦ ª{µª³ ¹Ê ´¦·¤µ RU ¸ªÉ ´ Åo Ä{»´ µ¦ª{µª³Á}ª·¸ ¤µ¦µÄµ¦ª´¦·¤µ{µª³oµ (RU)(2) ÂnÈÁ}ª·¸¸É°µÁ¸É¥n°£µª³ ·ÁºÊ°Â¨³µ¦µÁÈn°n°{µª³ ¹É Ħ¸¸É o¼ ªi ¥¤¸ RU Ťn¤µ ¶Ä®o°o ¼ª{µª³Ã¥Å¤n¶Á}(3) °¸´Ê ¥´ Á¸É¥n°£µª³´¨nµª °µ¸Ê ¥´¤¸ J Thai Rehabil Med 2007; 17(2) ¦µ¥µ¸¡É ªnµµ¦ª{µª³ Á¡º°É ª´ ¦·¤µ{µª³oµ ¤¸ªµ¤¨µÁ¨ºÉ° Åo¹ 27%(4) ¶Ä®o¨¨·¡¨µÅo µ¦ª´ ¦· ¤ µ RU Ã¥Äo Á ¦ºÉ ° °´¨¦µµªr¡¡µ (portable ultrasound scanner) ´Á}ª·¸¸É¤µ¦µ Äoµn ¥ ³ª ¨³Å¤n°o Á¦¸¥¤°»¦r ¥n» ¥µ ¤¸¦µ¥µªnµÁº°É º°Åo(1,2,3,5) ¦ª¤´Ê o¼ ¸É µ¤µ¦ÄoÅoÅÈ ¤n¶Á}o°¤¸¦³µ¦r¨³ªµ¤¶µ¤µ¤µ¥(6) µ¤µ¦ ª´¦·¤µ RU Åo´ÊÂn 50-700 ml.(5) ¹É¤¸nµªµ¤Â¤n¥¶Ã¥¦ª¤ (overall accuracy) 94%, ªµ¤Åª (sensitivity) 97% ¨³ªµ¤¶Á¡µ³ (specificity) 91%(5) ÂnÁ}¦µ¥µ¸ÉÄoÁ¦ºÉ°°´¨¦µ µªr¸ÉÂnµ´ ¨³¤¸¤µ¦µÄ µ¦¶ª¸ÂÉ nµ´ Bladder Scan BVI3000 (Diagnostic Ultrasound, USA ´¦¼¸É 1) Á} Á¦ºÉ°°´¨¦µµªr· threedimensional ¹É ¤¸¦µ¥µµ¦¶¤µÄoÄo¼ ªi ¥ «´ ¨ ¥¦¦¤ (7) o¼ i ª ¥¼ · ¦¦¤Ä ³ ¨°(8) ¨³o¼iª¥®¨´¨°(9) Á¡ºÉ°Äo ¦³Á¤·ªµ¤» °¦³Á¡µ³{µª³Â¨³ ¦·¤µ{µª³oµ (RU) °µ¸Ê ¥´ ¤¸ ¦ µ¥µµ¦Äo ª´ RU ´ o¼ i ª ¥ µÁÈÅ ´®¨´(10) ªnµÅo¨nµÁºÉ°º° ¨³Å¤n  n µ µª· ¸ ª{ µª³ °¸oª¥ ¦¼¸É 1 ÂÁ¦º°É °´¨¦µµªrÄ¸É o ĵ¦«¹¬µ - 38 - Ân µµ¦¶Á¦ºÉ ° °´ ¨ ¦µµªr ¥¸®É °o Bladder Scan ¦n» BVI 3000 ¤µÄo ĵ¦ª´¦·¤µ RU °o¼iª¥¸É®° o¼ i ª ¥Áª«µ¦r ¢g ¢¼ æ¡¥µµ¨ «¦¸¦·¦r ¡ªnµµ¤µ¦ª´nµ¦·¤µ RU Åo  n µ ´ n µ ¸É Å o µª· ¸ ª {µª³n° oµ¤µ ¹Á}¸¤É µ °µ¦ «¹¬µ¸Ê Á¡ºÉ°Á¦¸¥Á¸¥ªµ¤Â¤n¥¶ ĵ¦®µ¦·¤µ RU Ã¥ª·¸µ¦ª {µª³ ¨³ÄoÁ¦º°É °´¨¦µµªr ª·¸ µ¦«¹¬µ ¨n¤» ¦³µ¦ - o¼ ªi ¥¦³Á¡µ³{µª³¡·µ¦µ ¦°¥Ã¦Å ´®¨´ ¸ÁÉ oµ°¦´¬µ´ª °¥nļ ®°o¼ ªi ¥Áª«µ¦r¢g ¢¼ æ¡¥µµ¨«¦¸¦·¦r ¨³ª {µª³Á}¦³¥³ - µµ¦¶ª µ´ª°¥nµoª¥ °¤¡·ªÁ°¦rÃ¥Äo榤 Stats Direct Ã¥¶®nµÁ¡º°É ¶ª n  correlation ´¸Ê Correlation coefficient under null hypothesis (H0) = 0.97 Correlation coefficient under alternative hypothesis (H1) = 0.90 ∝ = 0.05 power = 0.8 ¹É ¶ªÅo n = 25 ÂnÄ®o n Á} 30 Á¡º°É Ä®oÁ}´ªÂ ° µ´ª°¥nµ¸ÁÉ } normal distribution Árµ¦´Á oµ (Inclusion criteria) - o¼ ªi ¥£µª³¦³Á¡µ³{µª³¡·µ¦ ¸É ´ µ¦ ´nµ¥{µª³Ã¥µ¦ª {µª³Á}¦³¥³ ¶ª 31 ¦µ¥ - Ťn¤¸£µª³Â¦o° °¦³µÁ· {µª³ ÅoÂn {µª³Å®¨¥o° ¹Ê Å, n°{µª³¸, Ū¤Ê¶, outpouching bladder diverticulum, ·ªÉ Ħ³Á¡µ³{µª³ ¨³Å¤n¤¸ £µª³·Áº°Ê µÁ·{µª³ (UTI) Árµ¦´°° (Exclusion Criteria) - o¼ ªi ¥Å¤n¥· ¥°¤ ®¦º°Å¤n¦ªn ¤¤º° ´Ê °µ¦ª·¥´ Á¤ºÉ ° o¼ i ª ¥ÁÈ Ä¥· ¥°¤Á o µ ¦n ª ¤ 浦¨oª Ä®oo¼iª¥¦°Â°µ¤ Á¸¥É ª´¦³ª´Â· ¨³ o°¤¼¨´ªÉ Å °o¼ ªi ¥ ªÁª¦³Á¸¥Á¡º°É ®µ o°¤¼¨Á¡·¤É Á·¤ Á¸¥É ª´¨µ¦¦ª®µµ¦Á¨¸¥É ¨ °¦³µÁ·{µª³¸É µn ¤µ ÅoÂn ¨ intravenous pyelography (IVP), voiding cystourethrography (VCUG), ultrasound KUB system, urine analysis (UA), urine culture ®¨´ ´nµ¥{µª³Â¨oª ª´¦·¤µ post - voiding residual urine (RU) Ã¥ o¼¶µ¦ª·´¥ÄoÁ¦ºÉ°°´¨¦µµªr¥¸É®o° Bladder Scan(US1) Á¦¸¥Á¸¥´ª·¸ ª{µª³ (Cath1) ¹É ¤¸¡¥µµ¨o¼ ªn ¥ ª·¥´ ¶µ¦ªoª¥µ¥ª{µª³· foley catheter 2 ®µ µ 14F Ã¥ d´nµ o°¤¼¨¸Éª´ÅoŤnÄ®oo¼¶µ¦ª´ ´Ê °ª· ¸ ¦µn µ °´ ¨³´ µ¦ª´ ¦· ¤ µ RU ¸É ªÅo ³Äo ¦³°¸¥µ¡¨µ· µ 50 ¤¨. ĵ¦ªª´ Ã¥®¨´µª{µª³ ¦´Ê¦³µµ¥ª{µª³Åªon° Á¡º°É ÄnʶÁ¨º°Á oµÅ Ä n ʶ Á ¨º ° Á o µ Å Ä ¦ ³ Á ¡ µ ³ {µª³ 50 ¤¨. µµ¥ foley catheter ¨³®´¡´¨µ¥µ¥Á¡ºÉ°Å¤nÄ®oʶÁ¨º° ¸ÄÉ nÁ oµÅÅ®¨°°¤µ ª´ RU oª¥Á¦º°É °´¨¦µµªr (US2) µ´Ê ÄnʶÁ¨º°Á¡·¤É Á oµÅ°¸ 50 ¤¨. ¨oªª´Ê¶oª¥°´¨¦µ µªr°¸ ¦´Ê (US3) ¹ª{µª³ (Cath2) Á}¦´Ê »oµ¥ ¥¹º°Á·µ¦ª{µª³ ° Áo µ ®o µ ¸É Á } ¤µ¦µÁ¸ ¥ ª´ º ° Á· ¦µ«µÁºÊ ° ¦n ª ¤´ µ¦ ®o µ o ° ¨o ª ®¤» µ¥ªÃ¥¦° ¡¦o°¤Á¨ºÉ° ¥´µ¥°°¤µÁº°» n°¸É ³¹µ¥ª°°¤µ µ¦ª´nµ RU oª¥Á¦º°É °´¨¦µµªr ³¶Ã¥o¼ ¶µ¦ª·¥´ Á¡¸¥Á¸¥ª¹É f ÄoÁ¦º°É °¥nµ¶µ Ã¥nµ¸É ´¹ ³Á}nµ¸ªÉ ´ Ã¥Á·¸ÂÉ ¤n¥¶¸É » ¨³ ª´Åoµn ÁnµÁ·¤·n°´ 3 ¦´Ê Outcome measurement US1 = nµ¦·¤µ RU ¸ªÉ ´ ¦´Ê ¦ oª¥Á¦º°É °´¨¦µµªr Cath1 = nµ¦·¤µ RU ¸ªÉ ´ Åoµ µ¦ª{µª³®¨´ª´ US1 US2 = ¦·¤µ{µª³oµ¸ªÉ ´ Åo µÁ¦º°É °´¨¦µµªrÁ¤º°É Änʶ Á¨º°Á oµÅ 50 ¤¨. US3 = ¦·¤µ{µª³oµ¸ªÉ ´ Åo µÁ¦º°É °´¨¦µµªrÁ¤º°É Änʶ Á¨º°Á oµÅ°¸ 50 ¤¨. Cath2 = ¦·¤µ{µª³¸É ªÅo ¦´Ê »oµ¥®¨´µª´ US3 Statistical analysis ·Á· ·¡¦¦µ ¶®¦´ o°¤¼¨´ªÉ Å °oÁ¼ oµ¦´µ¦«¹¬µ ·Á· ·ª·Á¦µ³®r - Á¦¸¥Á¸¥ RU ¸ªÉ ´ Åoµµ¦ Äo°¨´ ¦µµªr ¨³µ¦ª {µª³ Ã¥Äoª· ¸ µ¦¦³Á¤· clinical agreement ¦³®ªnµ °ª·¸ µ¤ª· ¸ ° Bland and Altman(11) - ®µnµªµ¤Åª (sensitivity) ¨³ ªµ¤¶Á¡µ³ (specificity) ° Á¦º°É °´¨¦µµªrÃ¥Á¦¸¥ Á¸¥nµ RU ¸ÁÉ ¦º°É ª´Åo´ nµ ¸ÅÉ oµª·¸ ª{µª³Ã¥ Á¦¸¥Á¸¥¸É ¶ª RU ¸É ¤µªnµ®¦º°Ánµ´ 100 ¤¨. ¨³o°¥ªnµ 100 ¤¨. µ¦«¹¬µ¸ÊÅo¦´´»»ª·´¥ µ iµ¥ª·´¥³Â¡¥«µ¦r ¤®µª·¥µ¨´¥ °Ân ¨µ¦«¹¬µ o°¤¼¨´ªÉ Å o¼ ªi ¥¶ª 31 °µ¥»´Ê Ân 2065 e (Á¨¸¥É 40.25 e) Á}µ¥ 21 , ®· 10 µ¦ª·· ´¥Ã¦Â¨³¦³´ ° ¦°¥Ã¦Å ´®¨´´Âĵ¦µ¸É 1 Á}¦°¥Ã¦¸ÉÅ ´®¨´·¤¼¦r 19 ¨³·Å¤n¤¼¦r 12 ¨µ¦«¹ ¬µÁ¦¸ ¥ Á¸ ¥ ¦³®ªn µ µ¦ª´ RU oª¥µ¦Äo°¨´ ¦µµªr (US) ´µ¦ª{µª³ (Cath) ¨µ¦ª´ RU oª¥ª·¸ US ´ Cath ´¸Ê US1 ¤¸µn ´Ê Ân 0-632 ¤¨. (Á¨¸¥É 214.87 ± 154.59 ¤¨.) Cath1 ¤¸µn ´Ê Ân 15-480 ¤¨. (Á¨¸¥É 190.07 ± 116.01 ¤¨.) US2 ¤¸µn ´Ê Ân 0-138 ¤¨. (Á¨¸¥É 45.419 ± 38.62 ¤¨.) US3 ¤¸µn ´Ê Ân 8-207 ¤¨. (Á¨¸¥É 99.19 ± 46.74 ¤¨.) Cath2 ¤¸µn ´Ê Ân 92-202 ¤¨. (Á¨¸¥É 129.10 ± 26.31 ¤¨.) Á¤ºÉ°®µªµ¤°¨o° Bland and Altman agreement plot ¡ªnµ¤¸ clinical agreement ¦³®ªnµnµ US1 ´ Cath1 ¨³ US3 ´ Cath2 ÂnŤn¤¸ agreement ¦³®ªnµ US2 ´ 50 ¤¨., US3 ´100 ¤¨., ¨³ Cath2 ´ 100 ¤¨. ´¦¼¸É 2, 3, 4, 5, 6 µ¦ª·· ´¥Ã¦ Spinal cord injury 18 C- spondylotic myelopathy 4 Transverse myelitis 4 Spinal cord tumor 4 TB- spondylitis with cord compression 1 ¦³´ °¦°¥Ã¦Å ´®¨´ ´Ê Ân C8 ¹Ê Å T1 - T6 T7 -T12 ´Ê Ân L1 ¨¤µ 9 7 11 4 µ¦µ¸É 1 µ¦ª·· ´¥Ã¦Â¨³¦³´¦°¥Ã¦Å ´®¨´ °o¼ ªi ¥¸ÁÉ oµ¦´µ¦«¹¬µ 31 - 39 - Áª«µ¦r¢g ¢¼µ¦ 2550; 17(2) Difference (US2-50) (ml.) Difference (US3- 100) (ml.) Average vol. (ml.) Average vol. (ml.) ¦¼¸É 2  Bland and Altman agreement plot ¦³®ªnµ US1´ Cath1Á¤º°É ¶´Ä®o¤¸ µn ªµ¤nµ ° US1´ Cath1µnµÁ¨¸¥É ŤnÁ· ± 50 ¤¨. ¡ªnµ¤¸ 21 µ 31 n¼ (67.74%) ¸¤É ¸ ªµ¤nµ´Å¤nÁ· ± 50 ¤¨. (95%CI = 51.25-84.23%) ¦¸É 5  Bland and Altman agreement plot ¦³®ªnµ US3´ 100 ¤¨. Á¤º°É ¶´Ä®o¤¸ µn ªµ¤nµ ° US3 ´ 100 ¤¨. µnµÁ¨¸¥É ŤnÁ· ± 20 ¤¨. (·Á} 20% ° 100 ¤¨.) ¡ªnµ¤¸Á¡¸¥ 16 µ 31 n¼ (51.61%) ¸¤É ¸ ªµ¤nµ´Å¤nÁ· ± 20 ¤¨. (95%CI = 46.16-57.07%) Difference (US3-Cath2) (ml.) Difference (ml.) Average vol. (ml.) ¦¼¸É 3  Bland and Altman agreement plot ¦³®ªnµ US3 ´ Cath2Á¤º°É ¶´Ä®o¤¸ µn ªµ¤nµ ° US3 ´ Cath2µnµÁ¨¸¥É ŤnÁ· ± 50 ¤¨. ¡ªnµ¤¸ 20 µ 31 n¼ (64.52%) ¸¤É ¸ ªµ¤nµ´Å¤nÁ· ± 50 ¤¨. (95%CI = 47.67-81.36%) Difference (US2-50) (ml.) Average vol. (ml.) ¦¼¸É 4  Bland and Altman agreement plot ¦³®ªnµ US2 ´ 50 ¤¨.Á¤º°É ¶´Ä®o¤¸ µn ªµ¤nµ ° US2 ´ 50 ¤¨.µnµÁ¨¸¥É ŤnÁ· ± 10 ¤¨. (·Á} 20% ° 50 ¤¨.) ¡ªnµ¤¸Á¡¸¥ 11 µ 31 n¼ (35.48%) ¸¤É ¸ ªµ¤nµ´Å¤nÁ· ± 10 ¤¨. (95%CI = 30.26-40.71%) J Thai Rehabil Med 2007; 17(2) - 40 - Average vol. (ml.) ¦¼¸É 6  Bland and Altman agreement plot ¦³®ªnµ Cath2´ 100 ¤¨.Á¤ºÉ ° ¶´ Ä®o ¤¸ n µ ªµ¤n µ ° Cath 2´ 100 ¤¨.µ meanŤnÁ· ± 20 ¤¨. (·Á} 20% ° 100 ¤¨.) ¡ªnµ¤¸Á¡¸¥ 13Ä 31 n¼ (41.94%) ¸É¤¸ªµ¤nµ´Å¤nÁ· ± 20 ¤¨.(95%CI = 36.5547.32%) Á¤ºÉ°¶nµ¦·¤µ{µª³oµ¸Éª´ Åoµ´Ê °ª·Á¸ ¡º°É ®µªµ¤ÅªÂ¨³ªµ¤ ¶Á¡µ³ °Á¦º°É °´¨¦µµªrĵ¦ª´ nµ RU ¸É¤µªnµ®¦º°Ánµ´ 100 ¤¨. ¹É Á}nµ¤µ¦µÂ¨³º°ªnµ¤¸ªµ¤¶´ ĵ·´·Á¡¦µ³¤¸¨n°µ¦´·Ä ª{µª³ ´µ¦µ¸É 2 Crosstabulation Sensitivity (95% CI) Specificity (95% CI) PPV (95% CI) NPV (95% CI) US1 vs Cath1 US3 vs Cath2 (Á¤º°É ¦³Á¡µ³{µª³¤¸ªµ¤»¦·) (Á¤º°É ¦³Á¡µ³{µª³¤¸ªµ¤» 100 ¤¨.) 0.8888889 0.5172414 (0.7084131-0.9764725) (0.325315-0.7055144) 1 0.5 (0.3976354-1) (0.125791-0.874209) 1 0.9375 (0.8575264-1) (0.6976793-0.9984189) 0.5714286 0.0666667 (0.1840516-0.9010117) (0.0016864-0.3194846) µ¦µ¸É 2  ªµ¤Åª (sensitivity) ¨³ ªµ¤¶Á¡µ³ (specificity) °Á¦º°É °´¨¦µµªr Ã¥Á¦¸¥Á¸¥nµ RU ¸ÉÁ¦ºÉ°ª´Åo ´¸ÉÅoµª·¸ª{µª³Ã¥Á¦¸¥Á¸¥¸É¶ª RU ¸¤É µªnµ®¦º°Ánµ´ 100 ¤¨. ¨³¸É °o ¥ªnµ 100 ¤¨. (PPV = Positive Predictive Value, NPV = Negative Predictive Value) ª·µ¦r µ¦Äo portable ultrasound µ¤µ¦ nª¥¦³Á¤·o¼ ªi ¥ªnµ¶Á}o°ª{µª³ ®¦º°Å¤n Á¡º°É ¨ªµ¤Á¸¥É µµ¦µÁÈ n°n°{µª³Â¨³£µª³·Áº°Ê µµ¦ª { µª³ ¹É ¤¸ o ° ¸ º ° n µ ¥Â¨³³ª Ťno°°µ«´¥o¼Á¸É¥ªµÁ¡µ³Äµ¦Äo Á¦º°É (6) Ťn°o ´Á¦¸¥¤»ª{µª³ ¨³o¼nª¥Ä®o¥n»¥µ °¸´Ê¥´¦³®¥´ Áª¨µªnµÁ¡¦µ³ÄoÁª¨µÄµ¦¦ªª´Ân¨³ ¦´Ê Á¡¸¥Å¤nÁ· 2 µ¸Ánµ´Ê µ¦«¹¬µ¸¡Ê ªnµnµ RU ¸ªÉ ´ Åoµ US ¨³ Cath ¤¸ ªµ¤°¨o ° ´ ´Ênµ¸Éª´n°Á·¤Ê¶Á¨º°Â¨³®¨´µ Á·¤Ê¶Á¨º°Á oµÅĦ³Á¡µ³{µª³ Ân n µ ¸É ª´ Åo ´Ê ¤¸ ªµ¤¨µÁ¨ºÉ ° Á¤º°É ¤¸¦·¤µ¦Ä¦³Á¡µ³{µª³o°¥ªnµ 100 ¤¨. ¶®¦´o¼iª¥µÁÈÅ ´®¨´¸É¤¸ { µª³o µ ¤µÁ· ªn µ 100 ¤¨. ¹É ´µ¦´£µª³¦³Á¡µ³{µª³¡·µ¦Ã¥ Äoª·¸µ¦ª{µª³Á}¦´Ê¦µª´Ê µ¦Äo Á ¦ºÉ ° °´ ¨ ¦µµªr Á ¡ºÉ ° ª´ RU °µ¤¸ªµ¤¶Á}o°¥ªnµ ÁºÉ°µ o¼ ªi ¥³o°Åo¦´ µ¦ª{µª³°¥n¼ ¨oª ¥ÁªoĦ¸¸É °o µ¦ªµ¤¦ªÁ¦ÈªÄµ¦ ¦³Á¤· Án ¸®É °o ¦ªo¼ ªi ¥° ®¦º° ¡¥r¸É ¦ªÁ¥¸¥É ¤Ä®°o¼ ªi ¥¹É ¤Á̧ª¨µ¶´ o°´Á °o¼¶µ¦«¹¬µ¡ªnµ µ¦ª´nµ US2 ®¨´µ¸ÄÉ nʶÁ¨º° 50 ¤¨. ¨³nµ US3 Á¤º°É ÄnʶÁ¨º°Á oµÅÄ ¦³Á¡µ³{ µª³Á¡·É ¤ Á} 100 ¤¨. ³¡ªµ¤¨µÁ¨º°É Åo¤µ ĵ¦µ¥ Ťnµ¤µ¦¦ª¡¦·¤µ{µª³Ä ¦³Á¡µ³{µª³Åo µµ¦«¹¬µ ¡¤¸ nµ US2 = 0 ¤¨. ¶ª 7 ¦µ¥ ¹É Á} o°¶´ °Á¦º°É ¤º°¸ÄÊ ¦¸¸É ³¶¤µ ÄoÄo¼iª¥¦·¤µ{µª³oµ¶ª o°¥º°Å¤nÁ· 100 ¤¨. Ã¥µµ¦ «¹¬µ¸Ê³¡ªnµª´nµ US3Åoo°¥ªnµ 100 ¤¨. ¶ª 15 ¦µ¥ ¶ª sensitivity °Á¦ºÉ°°´¨¦µµªrĵ¦ ¦ª°¦·¤µ RU ¸É¤µªnµ®¦º° o°¥ªnµ 100 ¤¨. ÅoÁ} 52% ¹É ³¤¸¨ n ° µ¦´ · Ä¸É ³ª{ µª³Åo µµ¦«¹¬µ ° Revord ¨³³Äe 1993 Ã¥Äo Á ¦ºÉ ° °´ ¨ ¦µµªr ¥¸É ®o ° Bladder Scan ¦n» BVI 2000 ¡ªnµ oµÄoĵ¦ª´¦·¤µ{µª³oµ¸Éɶ ªnµ 100 ¤¨.³¤¸ªµ¤¨µÁ¨ºÉ°¼ Ânµo ¶¤µÄoª´ ¦·¤µ{µª³oµ´Ê Ân 200 ¤¨. ¹Ê ų¤¸ªµ¤Â¤n¥¶¤µ ¹Ê (3) °µ¸Ê µ¦¸É µn Cath2 ¤µªnµ 100 ¤¨. ¤¸¹ 28 ¦µ¥ °µ°·µ¥Åoµ µ¦ª{µª³°°Å¤n®¤Ä¦´Ê¦ ¤o³Å¤n¤¸{µª³°°¤µµ¤µ¥ª - 41 - ¨oªÈµ¤ ®¦º°°µÁ}µ{µª³¸É Á¡·É ¨¤µÄ¦³Á¡µ³{µª³nµµn°Å ÂnÅÈ ¤nª¦¤¸¦·¤µ{µª³oµÁ¡·¤É ¹Ê ¤µ ÁºÉ°µ¦³¥³®nµ °Áª¨µnµÅÁ¡¸¥ ŤnÁ· 2 µ¸Ánµ´Ê µ¸É Jansen AE ¨³³Åo¶µ¦ª´ RU Ã¥ÄoÁ¦ºÉ° °´¨¦µµªrµ¤®¨´µ¦ª{µª³ o¼ ªi ¥µÁÈÅ ´®¨´ ¡ªnµ¦o°¥¨³ 70 (25 ¦´Ê ĵ¦ª{µª³ 36 ¦´Ê) ¤¸ { µª³Á®¨º ° o µ ¤µªn µ 50 ¤¨. ¹É ³o«¼ ¹ ¬µÅoÄ®oªµ¤Á®Èªnµ Á· µ¦ª{µª³¥´Å¤n¤n¥¶Äµ¦®µ ¦·¤µ¦¦³Á¡µ³{µª³¸ÉÂo¦·(12) ¨³¤¸µ¦«¹¬µªµ¤Â¤n¥¶Äµ¦ª {µª³¡ªnµµ¦´ÊŤnµ¤µ¦¶Ä®o ¦·¤µ¦¦³Á¡µ³{µª³Á}«¼¥rÅo(4) °¹É µ¦ª{µª³oª¥ foley catheter ¨³µÅªo n ° ¸É ³Än ʶ Á¨º ° Á o µ Š¨³¡´¨µ¥µ¥Åªo ³¸É ¶µ¦ª´oª¥ Á¦º°É °´¨¦µµªrÁ}{´¥¶´¸É ¶Ä®o Á·ªµ¤¨µÁ¨ºÉ°Äµ¦ª´Åo ¹É o¼ ¶µ¦«¹¬µ¥°¤¦´Ä o°¶´ °µ¦ «¹¬µ¸Ê °¥nµÅ¦Èµ¤ µ¦ª{µª³¥´º° Á}ª·¤¸ µ¦µ¸ÄÉ oĵ¦¦³Á¤·¦·¤µ {µª³oµ(2) ¹É µ¨µ¦«¹¬µ¡ªnµ µ¦ª´ RU Ã¥ÄoÁ¦º°É °´¨¦µµªr· ¡¡µ´Ê ¤¸ªµ¤°¨o°´´ª·¸ ª {µª³ Ã¥¤¸ªµ¤ÅªÄµ¦ª´¦·¤µ RU ¹ 89% ¹É º°ªnµÁº°É º°Åo ÁnÁ¸¥ª ´µª·´¥°ºÉ(1,2,3,5,10) Ân o°¶´ ° Á¦º°É °´¨¦µµªr·¡¡µº°Å¤nµ¤µ¦ ¶¤µÄoÄo¼ ªi ¥¸¤É ¸ ¦³Á¡µ³{µª³·¦¼ ®¦º°o¼¸É¤¸¦·¤µ{µª³oµo°¥Ç Åo Á¡¦µ³Á¦ºÉ ° ³¶ªª´ · ¡¨µ Ťn  ¤n ¥¶ ¹ Ťn µ¤µ¦Äo ´ o¼ i ª ¥ ¦³Á¡µ³{µª³¡·µ¦Åo» ¦¸ ª¦¤¸ µ¦«¹¬µÄ°µªnµoµ¶Á¦º°É °´¨¦µµªr·¡¡µ¸¤Ê µÄoĵ¦¦ªª´¦¸ {µª³oµ¦·¤µÅ¤n¤µ ³µ¤µ¦Äo Á· ¨³ª· ¸ µ¦Ä¸É n ª ¥Ä®o ¤¸ ªµ¤ ¤n¥¶Â¨³nµÁº°É º°ÅoÁ¡·¤É ¤µ ¹Ê Áª«µ¦r¢g ¢¼µ¦ 2550; 17(2) ¦» µ¦¦³Á¤· ¦· ¤ µ{ µª³o µ oª¥µ¦ª{µª³Â¨³oª¥Á¦º°É °´¨¦µµªr¡¡µnµÈ¤¸ ªµ¤¨µÁ¨º°É oª¥´´Ê n¼ Ân´Ê °ª·¤¸ ¸ °¨o°´ ´´Ê µ¤µ¦¶Á¦º°É °´¨¦µµªr ¡¡µ¥¸®É °o Bladder Scan ¦n» BVI 3000 ¤µÄoª´ ¦·¤µ{µª³oµÂª·¸ µ¦ ª{µª³Åo ´o¼ ªi ¥¦³Á¡µ³{µª³ ¡·µ¦µ¦°¥Ã¦Å ´®¨´ Ã¥Á¦º°É ¤¸ ªµ¤Â¤n¥¶¤µ ¹ÊĦ¸¸É{µª³ oµ¦·¤µ¤µªnµ 100 ¤¨. 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