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Date : Sept.
The 4th International Symposium
in Computational Medical and
Health Technology
21-22 2014
The 4th International Symposium in Computational Medical and Health Technology
Taipei, Taiwan, Sept. 21-22, 2014
1
The 4th International Symposium in
Computational Medical and Health Technology
Organizer:University of Hyogo (兵庫県立大学)
Host:Department of Electrical Engineering, Taipei Tech (台北科技大
學電機工程系)
Sponsors:
Alumni Association of Electrical Engineering , Taipei Tech (台北科技
大學電機工程系系友會)、
Plan for Developing Technological University Paradigms at NTUT (教
育部典範科大計畫(台北科技大學) )
Time: September 21 and 22, 2014
Venue: Room 318, Integrated Technology Complex Building
Taipei Tech, Taipei, Taiwan
The 4th International Symposium in Computational Medical and Health Technology
Taipei, Taiwan, Sept. 21-22, 2014
2
Program Manual
Contents
I. Organization ................................................................................................. 3
II. Schedule ....................................................................................................... 4
III. Venue ......................................................................................................... 5
IV. Plenary Talk 1 ............................................................................................. 6
V. Plenary Talk 2 ............................................................................................. 8
VI. Plenary Talk 3 ............................................................................................. 9
VII. Plenary Talk 4 ........................................................................................... 10
VIII. Session Schedule ...................................................................................... 11
IX. Paper Abstracts ........................................................................................ 13
The 4th International Symposium in Computational Medical and Health Technology
Taipei, Taiwan, Sept. 21-22, 2014
3
I. Organization
Symposium Chair:Naotake Kamiura (University of Hyogo)、
Jwo-‐Shiun Sun (Taipei Tech)
Vise Symposium Chair:Nobuyuki Matsui (University of Hyogo)、
Chao-‐Rong Chen (Taipei Tech)
Financial Chair:Syoji Kobashi (University of Hyogo)、
Jen-‐Hsiang Chou (Taipei Tech)
Program Chair:Manabu Nii (University of Hyogo)、
Tan-‐Hsu Tan (Taipei Tech)
Local Arrangement Chair:Juei-‐Chao Chen (Fu Jen Catholic University)、
Chao-‐Cheng Wu (Taipei Tech)
Publication Chair:Masakazu Morimoto (University of Hyogo)
The 4th International Symposium in Computational Medical and Health Technology
Taipei, Taiwan, Sept. 21-22, 2014
4
II. Schedule
Date Time Topic
2014
-‐09-‐21
(Sun
)
8:20 – 8:30 Opening Ceremony
8:30 – 9:20 Plenary Talk 1
Health Care by Information Technology
9:30 – 11:00 Session 1
11:10 – 12:00 Plenary Talk 2
Digital Healthcare for Lifestyle Modification
12:00 – 13:30 Lunch
13:30 – 14:20 Plenary Talk 3
Automatic Tongue Diagnosis System -‐ An Introduction
14:30 – 15:15 Session 2
15:15 – 16:00 Coffee Break
16:00 – 16:45 Session 3
17:00 – 17:50
Plenary Talk 4 A Novel Technique to Measure the Parameters of
Cardiovascular Based on Mechanism of Sphygmomanometer
18:00 – Banquet
2014
-‐09-‐22
(M
on)
9:30 – 17:00 Social Events
(Visit Tamkang University)
The 4th International Symposium in Computational Medical and Health Technology
Taipei, Taiwan, Sept. 21-22, 2014
5
III. Venue
1. Venue: Room 318, Integrated Technology Complex Building (綜合科館).
2. Exit 4 of Taipei Metro Zhongxiao Xinsheng (忠孝新生) Station.
3. Direction from Taipei Metro Station to the venue.
4. Direction to Taipei Main Station.
5. Direction to Golden China Hotel.
1
2
4
5
3
The 4th International Symposium in Computational Medical and Health Technology
Taipei, Taiwan, Sept. 21-22, 2014
6
IV. Plenary Talk 1
Health Care by Information Technology Yutaka Hata
Graduate School of Simulation Studies, University of Hyogo, Kobe, Japan
Abstract
Due to the huge cost of medical fee of about 40 % in national budget, Japan faces to save
the cost. The most promising way to save the cost is keeping the all Japanese people
healthy. To control health condition, a wearable device including smart phones receives
much considerable attentions. Especially, smart phone software aimed at weight control,
sleeping recording, food calorie calculation, pedometer, blood pressure recording is used
for many users. Wearable devices to record life log are also popular. While, all most
Japanese people receives medical checkup. Medical checkup over 40 years old people
employs breast X-‐ray, weight and height, blood pressure, eye test, blood test, and
stomach X-‐ray. These data would be useful to find how to keep them healthy. Cloud
computing gives us a wonderful solution to solve this problem. In my talk, first I introduce
an analysis platform to treat Japanese medical checkup data in fuzzy logic. This aims to
find an advice how to keep them healthy. Second, I introduce a wearable device with
electrocardiograph and accelerometer, and talk how to use it. This device has great
potential to do not only emergency use of heart attack but also keep us healthy. 3D
acceleration data can exactly open daily athletic state with complementary use of heart
rate.
Thus, this device has high potential to reveal our life-‐style improvement record used to
diagnose some diseases. Thus, health related system and its market with information
The 4th International Symposium in Computational Medical and Health Technology
Taipei, Taiwan, Sept. 21-22, 2014
7
technology would be receive much more attentions in the world. This direction is the
most promising way to keep all people healthy in the world.
The 4th International Symposium in Computational Medical and Health Technology
Taipei, Taiwan, Sept. 21-22, 2014
8
V. Plenary Talk 2
Digital Healthcare for Lifestyle Modification Hiroshi Nakajima
Omron Corporation, Kyoto, Japan
Abstract
Lifestyles related diseases of hypertension and diabetes have impacted social system
seriously recent days because of less child and aging. It has been well known that they
are strongly connected with the risk of the cardiovascular events such as stroke and heart
attack which are main causes of the long-‐term nursing care. According to the background,
the development of various digital healthcare systems has been accelerated by the
technologies of sensing, information, and communication. In this context, we also
developed the system by employing healthcare devices and services to extract the
individualized causalities between vital signals such as blood pressure and lifestyles. Our
lifestyle is simply composed by nutrition, exercise, and sleep. It must be important for us
to understand and realize what is our own better lifestyle by quantifying lifestyle
components and vitals. Through the realization, keeping our lifestyle modification is the
final goal and the precious value against the diseases. In this talk, our backdrop and
system overview are briefly introduced. Some statistical analysis results follow them with
important discussion points.
The 4th International Symposium in Computational Medical and Health Technology
Taipei, Taiwan, Sept. 21-22, 2014
9
VI. Plenary Talk 3
Automatic Tongue Diagnosis System -‐ An Introduction John Y. Chiang
Department of Computer Science and Engineering, National Sun Yat-‐sen University, Kaohsiung, Taiwan
Abstract
Intra-‐ and inter-‐observer agreements of the automatic tongue diagnosis system (ATDS)
and TCM practitioners have been conducted in our laboratory. The results demonstrate
that the ATDS is very consistent even in the face of variations of environmental lighting
and extruding tongue with an intra-‐observer agreement significantly higher than that of
the TCM doctors, while the inter-‐observer agreements between the ATDS and a group of
TCM doctors and among the TCM doctors are both moderate. ATDS serves not only as
clinical equipment in providing doctors with consistent tongue features of patients, but
also as a feasible teaching and evaluation means for students learning tongue diagnosis.
In this study, the ATDS developed by our team was utilized to train novice TCM doctors,
with assistance and guidance of a senior physician, to improve skills and consistency in
tongue diagnosis. With the vast amount of tongue images collected, accompanied by the
corresponding features extracted automatically, learning through the knowledge base of
ATDS is expected to be more effective than that guided by senior physicians only.
The 4th International Symposium in Computational Medical and Health Technology
Taipei, Taiwan, Sept. 21-22, 2014
10
VII. Plenary Talk 4
A Novel Technique to Measure the Parameters of
Cardiovascular Based on Mechanism of
Sphygmomanometer Shing-‐Hong Liu
Department of Computer Science and Information Engineering Chaoyang University of Technology, Taichung, Taiwan
Abstract
Because the medicine and biological technique are quickly developed, humans’ life is
higher than before. But, in the moment the mortality of cardiovascular diseases is still at
the high rank in the death reasons. Besides, the chronic diseases, like as hypertension,
diabetes, or nephropathy, also easily let the people get the cardiovascular diseases.
Many our friends or families are sudden death because they get the apoplexy or
myocardium infarction. However, now the popular and easy operating apparatus
monitoring the cardiovascular conditions in the home is only the oscillometric
sphygmomanometer. Although the blood pressure is an important parameter for
monitoring the cardiovascular conditions, how to develop an easy operating apparatus
on the homecare that not only measure the blood pressure, but also can monitor the
other parameters of cardiovascular is a challenge. A novel technique has been studied
which mechanism was an oscillometric sphygmomanometer. It not only measure blood
pressure, but also simultaneously measure the arterial stiffness, stroke volume and
cardiac output. It very suits users in home use, just as the use of sphygmomanometer.
The 4th International Symposium in Computational Medical and Health Technology
Taipei, Taiwan, Sept. 21-22, 2014
11
VIII. Session Schedule
Session 1
Time: 9:30 – 11:00 Chairs:Teijiro Isokawa、Juei-‐Chao Chen
1 [Sec 1.1] Online camera monitoring system for elderly people / Tetsuya Fujisawa, Tadahito Egawa, Kazuhiko Taniguchi, Naotake Kamiura, and Yutaka Hata
2
[Sec 1.2] Monitoring of activity of daily living for elderly people using RFID and wearable Technologies / Tan-‐Hsu Tan, Ke-‐Hao Chen, Munkhjargal Gochoo, Fu-‐Rong Jean, Yung-‐Fu Chen, and Li-‐Chu Lee
3 [Sec 1.3] An Elderly Surveillance System using Wireless Signal Fluctuation / R. Nishimura and M. Morimoto
4 [Sec 1.4] A Novel Automated Quantitative Method of CerebroSpinal Fluid Area for the Diagnosis of Lumbar Spine Stenosis / Jiann-‐Her Lin, Yung-‐Hsiao Chiang, and Chao-‐Cheng Wu
5 [Sec 1.5] An Evolutionary Computation Approach to Menu Creation for Hospital Meals / Teijiro Isokawa, Naotake Kamiura, and Nobuyuki Matsui
6
[Sec 1.6] Mean/variance based gameplay data exploration for player experience evaluation to increase adherence of Kinect-‐game based rehabilitaiton exercises at long-‐term care services /Tien-‐Lung Sun, Ta-‐Min Hung, Juei-‐Chao Chen, Kuo-‐Hung Lo, Chun Pei, and Chien-‐Hua Huang
Session 2
Time: 14:30 – 15:15 Chairs:Takayuki Fujita、Tan-‐Hsu Tan
1 [Sec 2.1] Directed graph based text representation for nursing-‐care text classification / Manabu Nii, Kazunobu Takahama, Takuya Iwamoto, Reiko Sakashita, and Atsuko Uchinuno
2 [Sec 2.2] Mobile Telemedicine System for Elderly Homecare: Design and Implementation / Cheng-‐Wei Hu, Yauri Hartoyo, and Yung-‐Chung Wang
3 [Sec 2.3] Electromagnetic Harvester by Damped Vibration of Impulse Shock / Kohei Yamaguchi, Takayuki Fujita, Yuji Tanaka, Koki Yamamoto, Koji Sonoda, Kensuke Kanda, and Kazusuke Maenaka
The 4th International Symposium in Computational Medical and Health Technology
Taipei, Taiwan, Sept. 21-22, 2014
12
Session 3
Time: 16:00 – 16:45 Chairs:Takayuki Fujita、Tan-‐Hsu Tan
1 [Sec 3.1] Fully automated artery extraction from 3-‐D TOF MRA images using fuzzy connectedness image segmentation / Syoji Kobashi, Tamotsu Nomura, Tomomoto Ishikawa, and Naotake Kamiura
2 [Sec 3.2] The Effects of Moderate Intensity Exercise on Heart Rate Variability in Relieving Work Stress / Shing-‐Hong Liu, Ming-‐Zhu Chang, and Jia-‐Jung Wang
3 [Sec 3.3] Sojourn-‐Time Reduction for Patients at Department of Cardiology / Naotake Kamiura, Syoji Kobashi and Kei Kuramoto, Takashi Fujii
The 4th International Symposium in Computational Medical and Health Technology
Taipei, Taiwan, Sept. 21-22, 2014
13
IX. Paper Abstracts Sec 1.1
Online camera monitoring system for elderly people
Tetsuya Fujisawa, Tadahito Egawa, Kazuhiko Taniguchi, Naotake Kamiura, and
Yutaka Hata
Abstract
This paper proposes an online gas monitoring system for watching over an elderly person.
For gas monitoring, a single camera captures gas meter image at fixed intervals. The
system applies edge detection and the connected-‐component labeling to extract numeral
regions of a gas mater image. It extracts shape characteristics from the numeral region. It
recognizes numeral image by fuzzy inference from acquired shape characteristics. Once
system fails to recognize gas consumption by some accidents, the consumption is
interpolated from time-‐series data. For an online monitoring in a day, it is shown that the
system successfully estimates gas consumption and visualizes them.
The 4th International Symposium in Computational Medical and Health Technology
Taipei, Taiwan, Sept. 21-22, 2014
14
Sec 1.2
Monitoring of activity of daily living for elderly people
using RFID and wearable Technologies
Tan-‐Hsu Tan, Ke-‐Hao Chen, Munkhjargal Gochoo, Fu-‐Rong Jean, Yung-‐Fu Chen,
and Li-‐Chu Lee
Abstract
A telecare system for monitoring activity of daily living (ADL) of elderly people is
presented in this study by using active radio frequency identification (RFID) and wearable
technologies. The active RFID is employed to identify the identity and activity area of the
elderly people. A wearable device, the Fitbit Flex Wristband (FFW) is utilized to measure
the walking steps and energy expenditure of the elderly people in daily activity. The
activity data are then sent to the remote server installed in monitoring center to build
the activity density map (ADM) and the textural features extracted from ADM are
employed to calculate a dissimilarity measurement of the elderly people during different
weeks for detecting if any abnormal activity pattern happens. Experimental results show
the potential of the proposed system for practical application.
The 4th International Symposium in Computational Medical and Health Technology
Taipei, Taiwan, Sept. 21-22, 2014
15
Sec 1.3
An Elderly Surveillance System using Wireless Signal
Fluctuation
R. Nishimura and M. Morimoto
Abstract
To avoid unattended death of “single elderly people”, this paper proposes a discreet
surveillance system. The proposed surveillance system use wireless communication
device to sense living activities, because employing surveillance camera will cause
invasions of privacy. In this paper we report some results of preliminary experiments,
which clarify relationship between wireless signal fluctuation and several living activities;
sleeping, deskwork, walk-‐through and so on. As a result, we can show that our system
can sense living activities from signal fluctuations.
The 4th International Symposium in Computational Medical and Health Technology
Taipei, Taiwan, Sept. 21-22, 2014
16
Sec 1.4
A Novel Automated Quantitative Method of
CerebroSpinal Fluid Area for the Diagnosis of Lumbar
Spine Stenosis
Jiann-‐Her Lin, Yung-‐Hsiao Chiang, Chao-‐Cheng Wu
Abstract
Lumbar spinal stenosis (LSS) is the most common cause for lumbar spinal surgery in
patients older than 65 years. A grading system for LSS is needed to allow precise
communication between clinicians and for assessment of treatment responses. At
present, there are two categories of grading systems-‐qualitative and quantitative.
However, there is always individual subjectivity of radiologists in those qualitative
classifications systems. To overcome the inter-‐reader variability, some studies have
focused on dural sac cross-‐sectional area (DSCSA) or dural sac anterior-‐posterior
diameter (DSAPD) for diagnosis or grading of LSS. However, these measurement methods
are time-‐consuming and not relevant to clinical symptoms even with the same values for
DSCSA or DSAPD. Herein, we propose a novel quantitative automated method to
measure the cross-‐section area of the CSF. This quantitative automated method has two
advantages: First, it is time-‐saving-‐ it automatedly calculates the CSA of the CSF. Second,
it provides objective and quantitative results. This study is to introduce this novel
quantitative automated method, evaluate its reliability, and compare it to other two
semiquantitative CSF-‐based classification systems.
The 4th International Symposium in Computational Medical and Health Technology
Taipei, Taiwan, Sept. 21-22, 2014
17
Sec 1.5
An Evolutionary Computation Approach to Menu
Creation for Hospital Meals
Teijiro Isokawa, Naotake Kamiura, and Nobuyuki Matsui
Abstract
The task of manually planning daily menus for hospital meals is a complex one as many
conditions for nutrition apply, and it is important to ease these burden of planning. This
task can be formulated as an optimization problem with menu items as variables and
with specific nutritional and allergic constraints. In this study, a menu creation scheme
was proposed to satisfy these conditions, which also took into consideration patients’
food preferences. A genetic algorithm was utilized to better and more efficiently locate
combinations of menu dishes for individual patients. The proposed scheme was
evaluated for a virtual patient with or without food allergies. The results demonstrated
that several candidates for a well-‐balanced five-‐ day menu could be proposed in either
case with this scheme.
The 4th International Symposium in Computational Medical and Health Technology
Taipei, Taiwan, Sept. 21-22, 2014
18
Sec 1.6
Mean/variance based gameplay data exploration for
player experience evaluation to increase adherence of
Kinect-‐game based rehabilitaiton exercises at long-‐term
care services
Tien-‐Lung Sun, Ta-‐Min Hung, Juei-‐Chao Chen, Kuo-‐Hung Lo, Chun Pei, and
Chien-‐Hua Huang
Abstract
This paper first presents a new formula that is able to calculate mean and variance with
one pass of data reading while still retaining accuracy. The new formulas support
interactive gameplay data exploration to analyze player’s experiences at Kinect game
based rehabilitation exercises at long-‐term care. Player experiences are used as
feedbacks to increase social connections between the long-‐term care delivery people and
the players. Closer social connection increases player’s adherence to the game and
motivate regular, routine rehabilitation exercises. The usage of the new mean/variance
formulas will be more apparent when large amount of gameplay data are collected from
many long-‐term care patients.
The 4th International Symposium in Computational Medical and Health Technology
Taipei, Taiwan, Sept. 21-22, 2014
19
Sec 2.1
Directed graph based text representation for
nursing-‐care text classification
Manabu Nii, Kazunobu Takahama, Takuya Iwamoto, Reiko Sakashita, and
Atsuko Uchinuno
Abstract
Japan is one of the most aging countries. In such aging countries the number of patients
increases, however, the number of nurses does not increase or may decrease. Therefore,
it is very important for every nurse to improve the quality of nursing-‐care. Nursing-‐care
quality evaluation is needed for improving their actual nursing. For evaluating
nursing-‐care, freestyle Japanese texts that include actual nursing description are
gathered through the Internet. Such texts are classified by a SVM based classification
system that is trained using some texts evaluated by nursing-‐care experts. In order to
classify texts, we need to apply some preprocessing methods. Extracting features is one
of such preprocessing methods. In this paper, we propose a directed graph based feature
definition. Nursing-‐care texts are represented using directed graph expression. From
some experimental results, it is shown that our directed graph based feature definition
has effectiveness for classifying nursing-‐care texts.
The 4th International Symposium in Computational Medical and Health Technology
Taipei, Taiwan, Sept. 21-22, 2014
20
Sec 2.2
Mobile Telemedicine System for Elderly Homecare:
Design and Implementation
Cheng-‐Wei Hu, Yauri Hartoyo, and Yung-‐Chung Wang
Abstract
Most of countries have a problem with growing population of elderly. The elderly needs
young people to take care of them. However, it is hard to do in these modern days where
productive peoples are busy more than ever. Telemedicine system is a solution for this
problem. Telemedicine system allows medical information exchanged from one site to
another via electronic devices. With a telemedicine system, young people can know the
situation of the elderly remotely. In this study, we create a telemedicine system for
elderly homecare using event detector, notification server and Android device. The event
detector will be connected to IP cameras and receives real-‐time image of elderly current
situation. The event detector has an application for analyzing the image using fall
detection system with human shape and shadow elimination method. Whenever a fall
event detected from the image, a notification will be sent to Android device through a
notification server and Google Cloud Messaging service. When notification arrives on
Android device, homecare giver can see the image where fall event detected and be able
to connect directly to IP camera to monitor the real-‐time situation.
The 4th International Symposium in Computational Medical and Health Technology
Taipei, Taiwan, Sept. 21-22, 2014
21
Sec 2.3
Electromagnetic Harvester by Damped Vibration of
Impulse Shock
Kohei Yamaguchi, Takayuki Fujita, Yuji Tanaka, Koki Yamamoto, Koji Sonoda,
Kensuke Kanda, and Kazusuke Maenaka
Abstract
In this paper, we introduce the possibility of power generation by using shock on the
human body. Common vibratory energy harvesters have an efficient operating frequency
for power generation, the resonance frequency of the system, and they are not suitable
for the vibration composed of broadband frequency. Thus, the harvesting from vibration
of human body is rather difficult. We propose power generation by using damped
vibration with impulse shock on human body. By this technique, input vibration is not
limitted by sinusoidal vibration but by impulse shock. We simulate generation power by
using damped vibration in order to obtain optimal device structure suitable for human
movement.
The 4th International Symposium in Computational Medical and Health Technology
Taipei, Taiwan, Sept. 21-22, 2014
22
Sec 3.1
Fully automated artery extraction from 3-‐D TOF MRA
images using fuzzy connectedness image segmentation
Syoji Kobashi, Tamotsu Nomura, Tomomoto Ishikawa, and Naotake Kamiura
Abstract
Artery extraction from magnetic resonance angiography (MRA) images is essential for
computer-‐aided diagnosis of aneurysm detection using MRA images. In literatures, some
methods have been studied; however, there are few discussions on fully-‐automation,
applicability to various MRI scanner or patient symptoms. This paper proposes a new
method for extracting arteries with fully and automatically from MRA images. The
method does not require any user interaction such as analysis parameter setting. It is
based on fuzzy connectedness image segmentation (FCIS). The method firsts roughly
segments the parenchymal region, and then finds intensity threshold parameters using
the segmented parenchymal region. Next, the method extracts the artery region by using
FCIS. The proposed method has been applied to both of 1.5 T and 3.0 T MRA images. And,
the subjects are with or without aneurysms, diabetes, hypertension, hyperlipidaemia,
and/or cerebral infarction. It found thresholds parameters fully-‐automatically and
segmented the artery region preciously in all subjects except one subject.
The 4th International Symposium in Computational Medical and Health Technology
Taipei, Taiwan, Sept. 21-22, 2014
23
Sec 3.2
The Effects of Moderate Intensity Exercise on Heart Rate
Variability in Relieving Work Stress
Shing-‐Hong Liu, Ming-‐Zhu Chang, and Jia-‐Jung Wang
Abstract
Long-‐term endurance exercise could increase parasympathetic activity and decrease
sympathetic activity in the heart at rest. However, previous studies all focused on the
effect of endurance training on heart rate variability (HRV) for athletes or sedentary
subjects. Thus, the goal of this study was to elucidate the beneficial effect of moderate
intensity exercise on relieving work stress in elementary schoolteachers. There were 20
participants in the exercise group, and another 20 participants in the non-‐exercise group.
The exercising teachers performance 12 weeks of moderate intensity exercise training,
consisting on average of 30 minutes per day, 3 times per week. HRV was measure before
and after 4th, and 12th weeks. The TP, HF, RRI, SDNN, RMSSD, and SDSD had the
significant increases (all p< 0.001) after 12 weeks training. But, the TP, HF, SDNN, RMSSD,
and SDSD in the non-‐exercise group had the significant decreases (all p< 0.001) after 12
weeks. Moreover, the weight and body fat in both groups didn’t any change after 12
weeks. We conclude that the moderate intensity exercises can relieve the psychological
stress in elementary schoolteacher. But, it can’t change the physical status.
The 4th International Symposium in Computational Medical and Health Technology
Taipei, Taiwan, Sept. 21-22, 2014
24
Sec 3.3
Sojourn-‐Time Reduction for Patients at Department of
Cardiology
Naotake Kamiura, Syoji Kobashi and Kei Kuramoto, Takashi Fujii
Abstract
In this paper, a method of determining the order of medical examinations is presented to
reduce sojourn times for patients visiting a department of cardiology. The batch process
made in the nighttime determines the order of medical examinations for patients with
appointments. In the daytime, free time slots into which the examinations for patients
without appointments can be inserted are searched in the list of examinations generated
during the night. When determining orders, values randomly generated from surveillance
results are used as examination times. Experimental results show that the proposed
method achieves short sojourn times both for patients without appointments and for
those with appointments, compared with the determination manually made by a nurse.