Table C.18.1-1 specifies the Attributes that convey a NUM (numeric measurement) value.
The Measured Value Sequence (0040,A300) may be empty to convey the concept of a measurement whose value is unknown or missing, or a measurement or calculation failure.
Table C.18.1-1. Numeric Measurement Macro Attributes
|
Attribute Name |
Tag |
Type |
Attribute Description |
|---|---|---|---|
|
Measured Value Sequence |
(0040,A300) |
2 |
This is the value of the Content Item. Shall consist of a Sequence of Items conveying the measured value(s), which represent integers or real numbers and units of measurement. Zero or one Item shall be included in this sequence. |
|
>Numeric Value |
(0040,A30A) |
1 |
Numeric measurement value. Only a single value shall be present. |
|
>Floating Point Value |
(0040,A161) |
1C |
The floating point representation of Numeric Value (0040,A30A). Only a single value shall be present. Required if Numeric Value (0040,A30A) has insufficient precision to represent the value as a string. May be present otherwise. |
|
>Rational Numerator Value |
(0040,A162) |
1C |
The integer numerator of a rational representation of Numeric Value (0040,A30A). Encoded as a signed integer value. Only a single value shall be present. Required if Numeric Value (0040,A30A) has insufficient precision to represent a rational value as a string. May be present otherwise. |
|
>Rational Denominator Value |
(0040,A163) |
1C |
The integer denominator of a rational representation of Numeric Value (0040,A30A). Encoded as a non-zero unsigned integer value. Only a single value shall be present. Required if Rational Numerator Value (0040,A162) is present. |
|
>Measurement Units Code Sequence |
(0040,08EA) |
1 |
Units of measurement. Only a single Item shall be included in this sequence. |
|
Defined CID 82 “Units of Measurement”. |
|||
|
Numeric Value Qualifier Code Sequence |
(0040,A301) |
3 |
Qualification of Numeric Value in Measured Value Sequence, or reason for absence of Measured Value Sequence Item. Only a single Item is permitted in this sequence. |
|
Defined CID 42 “Numeric Value Qualifier”. |
|||