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Table 3-45: HC: Hadlock, Radiology 1984, Vol. 152:497 (Fetal Age)
Table Type = SD, Table Range = 2SD, Graph Range = 2SD
Meas
Mean
SD
<55
n/a
——
55
12.0
1.19
60
12.3
1.19
65
12.6
1.19
70
12.8
1.19
75
13.1
1.19
80
13.4
1.19
85
13.7
1.19
90
14.0
1.19
95
14.3
1.19
100
14.7
1.19
105
15.0
1.19
110
15.3
1.19
115
15.6
1.19
120
16.0
1.19
125
16.3
1.19
130
16.6
1.19
Table 3-46: HC: Hadlock, AJR 138: 649-653, 1982 (Fetal Age)
HC
Age
SD
<69
n/a
——
69
84
9
75
87
9
81
91
9
88
94
9
96
98
9
103
101
9
110
105
9
117
108
9
124
112
9
131
115
9
137
119
9
144
122
9
150
126
9
157
129
11
163
133
11
LOGIQ 7/LOGIQ 7 Pro Advanced Reference Manual
Direction 5116269-100 Rev. 2
Unit: meas(mm); mean(Week); SD (Week)
Meas
Mean
SD
135
17.0
1.19
140
17.3
1.19
145
17.7
1.19
149
18.0
1.48
150
18.1
1.48
155
18.4
1.48
160
18.8
1.48
165
19.2
1.48
170
19.6
1.48
175
20.0
1.48
180
20.4
1.48
185
20.8
1.48
190
21.3
1.48
195
21.7
1.48
200
22.2
1.48
205
22.6
1.48
210
23.1
1.48
Unit: HC (mm); Age (Days); 2SD (Days)
HC
Age
SD
169
136
11
175
140
11
181
143
11
187
147
11
193
150
11
198
154
11
204
157
11
209
161
11
215
164
11
220
168
11
225
171
16
230
175
16
240
182
16
245
185
16
250
189
16
255
192
16
Meas
Mean
SD
23.6
1.48
215
219
23.9
1.48
220
24.0
2.06
225
24.5
2.06
230
25.0
2.06
235
25.5
2.06
240
26.1
2.06
245
26.6
2.06
250
27.1
2.06
255
27.7
2.06
260
28.3
2.06
265
28.9
2.06
270
29.4
2.06
274
29.9
2.06
275
30.0
2.98
280
30.7
2.98
285
31.3
2.98
HC
Age
SD
260
196
16
264
199
16
269
203
16
273
206
16
278
210
16
282
213
19
286
217
19
291
220
19
294
224
19
298
227
19
302
231
19
306
234
19
309
238
19
312
241
19
316
245
19
319
248
19
OB Tables
Meas
Mean
SD
290
31.9
2.98
295
32.6
2.98
300
33.3
2.98
305
33.9
2.98
310
34.6
2.98
315
35.3
2.98
319
35.9
2.98
320
36.1
2.70
325
36.8
2.70
330
37.6
2.70
335
38.3
2.70
340
39.1
2.70
345
39.9
2.70
350
40.7
2.70
355
41.6
2.70
360
42.4
2.70
>360
n/a
——
HC
Age
SD
322
252
19
325
255
24
328
259
24
331
262
24
334
266
24
337
269
24
340
273
24
343
276
24
345
280
24
348
286
24
351
287
24
353
290
24
354
294
24
>354
n/a
——
3
25
-
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